Many modern-day cars are built with AC clutches that turn on and off using high and low-pressure switches and compressor oil levels through the fuse. 37 % of the time it's the. Inspect low coolant content or pressure. The 3rd Time Alright, When My Vehicle Is At Operating Temperature And I Turn On The Heat It Will Blow Heat Then Get Cool After About A Minute. After inspecting the belt, there can only be two things left that could be happening: 1. If there isn't enough refrigerant, the clutch may not engage. Ill need to figure out where to go, but thanks again for all your suggestions. It is a 2010. Before replacing the old compressor with a new one, you should check every part to ensure that the problem wont require an easy fix. I Am Seking Problem Stop Safely. If you jump the low pressure switch with the engine running, do it only for a few seconds. 2. They checked the levels and the pressure was good before they did anything else. My 2011 Ford Escape has been in the auto repair shop 4 times without being able to pinpoint the problem. Any good shop should be able to trace this down. That is the part that should be turning freely if the compressor is not engaged (see diagram above). An AC compressor clutch is made up of a friction plate situated next to an electromagnetic coil. It should be on whenever the a/c is on. 1861cp When the two are separated, pull the switch off the connection and attach the new switch. RECALLS! Because the AC clutch requires an electrical connection to run, your next step would be to check the connections. Started 19 hours ago, By If this circuit is traced the fault of a open circuit can be found out. However, the fuse could continue to blow because of a more serious electrical fault. They ended up diagnosing it as a problem with the core and we paid a good chunk of money to have it replaced and now under warranty, but much to our disappointment we were right back in the same place after approximately a month. Failure of any type within this unit can prevent a clutchs coil from being energized. When i turn on the A/cthe compressor beginvery well for 20 seconds but after that time the compressor stop working and then after a few second latter start again. Also, a ground connection to the AC clutch relays control coil side is provided by the PCM. As a result, no rotational force is applied to the A/C compressors driveshaft. Started 12 hours ago, By Mechanic's Assistant: Are you fixing your Escape yourself? We use cookies to ensure that we give you the best experience on our website. However, when the AC pressure switch goes bad, warm air might be all you get. JordyC123 the heat will not shut off and airconditioner wont engage when control knob moved from heat to cool. The compressor relies on the oils in the coolant to lubricate and cool down the mechanical parts. If there are two belts, theyll both be attached at the crank pulley. There is an AC relay in the relay box next to the battery. Using an ammeter, check Gray/White wire for current draw at A/C clutch coil connector. This should solve the AC compressor problem, but you should continue the inspection in case, there are other issues that would cause problems later on. Escape A/C Recharge. 2. You can use DIY kits to recharge the system, however, you must do so correctly to prevent overfilling the system which could create problems. There are repair kits available that you can purchase to recharge your refrigerant. Perform these next steps with the engine turned off. The AC compressor pulley is always being turned by either the serpentine belt or a dedicated belt (its going to depend on the model year and engine type). We recommend starting with the power wire to the AC clutch. Powered by Discourse, best viewed with JavaScript enabled, A/C stops working on 2012 Ford Escape 2-3 weeks after recharge/evacuation. Just driving to nowhere alone, with your friends, or your . With the engine on, you can fully diagnose the problem. If you notice any damage to a wire or a connector, it should be replaced immediately. There are three reasons why the compressor clutch does not engage, especially if the sensor detects them. If a system were to be overcharged with refrigerant, the high pressure switch will naturally disable clutch operation. Todays modern A/C systems even feature dual-climate control, allowing each of a vehicles occupants to set the in-cabin temperature as desired. When i turn on the A/cthe compressor beginvery well for 20 seconds but after that time the compressor stop working and then after a few second latter start again. Something else is the problem. Adjust as necessary and retest system. The most common reasons a Ford Escape ac isn't working are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. Another possible cause could be leaks in the AC system. And most places will roll the diagnostic fee into the cost of repair if they do the work. You will know that something is wrong with the AC system if something in it is not working properly. Ask your Ford dealer. Measure the voltage coming to the connector with a multimeter, and if everything is activated properly, you should see 12 to 14 volts coming to this wire. (4 Causes and How to Fix), Does Cruise Control Actually Save Gas? Get a click, we can start troublshooting wires. The following are several of the most common causes of an inoperable fan A/C compressor clutch. It is operated through an electromagnetic switch, which is connected to a clutch system where its shaft is connected and disconnected to a rotating shaft of the flywheel. Its located next to an electromagnetic coil. Murray Compressor - New - 58035. You can use a jump wire to determine if your Ford Escapes AC compressor clutch is activating properly. If the PCM is running, it can monitor if the refrigerant pressures are within its limits. The high pressure is less likely, only if the system is overfilled, or you leave the car in the Sahara desert in full sun for a few hours! We took it to our mechanic (who I trust). If it has blown, your only option is to replace it. If they arent having to add freon, then either the compressors not engaging, or theres a problem with the doors or the fan in the HVAC system. Measure the voltage coming to the connector with a multimeter, and if everything is activated properly, you should see 12 to 14 volts coming to this wire. Turn the AC to high while looking at the serpentine belt for any issues. Started Tuesday at 12:48 PM, Ford Owners Club The two wires inside the low pressure cutout switch wiring connector get jumpered together. Goodmorning, the ac compressor on my ford escape is not engaging. 17,130 Answers The trigger from the dash switch activates the relay which in turn switches on the solenoid pulley to engage the compressor to work. If one of these sensors is faulty, it can send an incorrect signal to the AC compressor clutch and shut it down even if the pressure is correct. They checked for leaks but found none. Started 13 hours ago, By The evaporator coil is found inside your cars cabin. But, I have no reason to think it will last. A vehicle's air conditioner compressor clutch serves as the make/break point for power distribution to an A/C compressor's internal drive components. Ensure that your engine is turned off when performing this inspection. - My E350's AC was not working (clutch not engaging) so I added two cans (22 oz.) You should be able to reference a diagram in your cars service manual. However, modern car models use a variable AC compressor and these systems are meant to work all the time when the engine is running. What have you tried so far? that have created this guide for you so you can understand how the system works green and/or greasy components . hiace_drifter On 7/22/2016 at 5:26 AM, Tdci-Peter said: This is ok as a diagnostic test, but there is a problem if you use it long term: The compressor will be damaged if pressure is too low, as it will not get the oil it needs, which is in the circuit with the refrigerant. 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Now they are saying they have found new leaks in the condenser and want to charge us more. Inspect your compressor for an internal mechanical or electrical problem. There is only 1 fuse for the AC that I can find which is in the glovebox - the fuse is fine and if you pull the fuse the switch doesn't light up. Started February 6, 2020, By Dan - Did you ever get to the bottom of this? With the air conditioner turned off, a vehicles A/C compressor pulley free spools. Route the wires to the car battery. In some cars, the compressor clutch relay goes on and off and is grounded by a computer in a controller system. It could also slip at times, leading to erratic operations. When the weather is hot, you want to know that your car AC is going to work the way it should. If the clutch kicks on at first I doubt it is that. Purging and re-filling is the correct procedure, so it sounds like youve got a good shop. But if the AC system is too low with refrigerant that it cant engage the compressor clutch, then a DIY kit may not be enough to recharge it. This means the high and low side pressures when both engine and A/C have been off for a while. Ill also update when I get a resolution to the problem. You can do this in under 2 minutes with a test light. From you description, it sounds as though the system isn't building enough pressure, and by relation enough heat to turn the cooling fans on. Turn the AC controls to maximum air conditioning. Ford Escape AC Compressor Not Engaging: How to Check and Fix. Read also: What Happens When There is Oil in The Coolant Reservoir? If freon is low, it won't engage. Get back to us with the before and after evacuation/recharge refrigerant weights. Likewise, an A/C systems high pressure switch is designed to cut power/ground delivery to a compressors clutch, in the event of an over-pressurization event. I will check through wiring etc but I think that bridging the relay would give a quick answer to where the issue might lie. Click Here for the 5 best options. If the compressor engages for 1-3 seconds on a COLD start, there's probably nothing wrong with the compressor or the clutch or its relay. AC compressor not staying engaged. Alexdeltaron Posted: Oct 21, 2019. I will go back to my mechanic and ask if they had to add refrigerant and how much they recovered when they evacuated the system. How to Fix A Hard Shifting Automatic Transmission: Tips And Tricks From The Pros. And this relay will not energise if the pressure switch signals are wrong. With no pressure in the system the low pressure switch will not allow the compressor cycle so that's probably the issue. TomsFocus Try checking if the clutch is in good condition by applying these steps: Here is a useful tip: If youre not confident to do the examination yourself, it is best to work with a car expert. If you dont get any voltage reading, then check the fuse. Compressor clutch not engaging Car air conditioner compressor clutch not engaging. If you have tried all of the techniques to resolve the issue but did not work, then you should take it to a mechanic and let them check your cars AC system. Your last post confused me. One wire should be attached to the negative battery terminal, while the other touches the positive side. You cannot paste images directly. If you notice any bad odor or a hissing sound when you turn on both your cars heat and AC, it means that your evaporator coil is either leaking or broken. Unplug any relay terminal wiring with the interior car A/C controls in the "off" position. the receiver/dryer is running short of liquid. 225 PSI / 80 PSI = It is likely that the . Components used in the Ford Escape AC system Cylinder head temperature sensor Engine coolant temperature sensor Evaporator temperature sensor Low pressure AC cycling switch Dual function high pressure switch We are a team of ASE certified mechanics Basically youre creating instant fog from the high dew point, saturated air, and sudden cold. Condenser may be blocked. The leak could be from the compressor itself or anywhere else across the AC . You will need a wire crimp tool because the connectors are small. Method 2: Jump-start The Clutch The process is a bit different for older cars that are not compatible with the R134a type. Copyright 2023 Mechanic Base. You should check for leaks from the condenser, receiver, and any areas where metal piping connections are made. Copyright 2023 AutoMobile Remedy, All Rights Reserved. This car AC element helps blow the air to cool it down. The clutch is not getting a signal to turn on. January 2022 Jason, MAZDA6 shuts down while driving fuel pump not monitored, may be no engine light etc. It should spin only when the AC system is activated and functional. Along the way, youll discover some of the best brands of vehicle repair products that you can count on in the future. [/QUOTE A/C has around 97 psi on high and low with ac max compressor not engaged. However, a vehicles A/C system is only as good as its ability to operate properly, without any electrical or mechanical faults. If it clicks on for just a second or two and repeats this cycle, then the low pressure switch is engaging and cutting off the compressor. How do I manually engage my AC compressor clutch? I have mot. If you're here, chances are you've tried to recharge your AC system and found a compressor clutch not engaging issue. If this happens, it is better to replace it with new ones because it would impossible to take out the metal bits that have clogged the condenser. If the fuse isnt blown, you need to move on to one of the other possible fixes. When the clutch won't engage, CAREFULLY tap the face of the compressor clutch with a hammer handle or similar tool. Started February 26, 2015, By This indicates some form of wiring problem. Cold air started blowing again! DaveOM There are several instances when manually engaging an A/C compressors clutch can prove valuable. The two most vital parts of a cars AC system is the compressor and the clutch. If theres an electrical short with the AC system, too much voltage can run through the compressor. On the other hand, if it is turning freely, we need to determine why its not activating. If they have to add ANY freon, then theres a leak, they just havent found it. It also gives an insight into how the system works. Pulley: If the compressor pulley bearings are failing, they can make noises, generally a grinding, roaring or squealing noise. Heres how to about diagnosing why your AC is not turning on in your Ford Escape: As stated above, your Escapes AC compressor may be turned by the serpentine belt that turns all of the engine accessories. After inspecting the belt, there can only be two things left that could be happening: 1. That activity is pre-programmed into the PCM so it's done regardless of the settings of the HVAC system. Solved A/C compressor clutch not engaging . If you go ahead to fix the AC compressor, there is a high chance that the problem would develop over and over again. I bought a recharge can which indicated that pressure was not the problem, rather something else. sambooka However, this piece may cost you too much to replace. Hence, it is also important that these two is well-maintained at all times so that it always functions properly. Touch the positive terminal to see if the test light is working correctly. Car Maintenance, General Repair, Trouble Shooting, and Everything Car Related. That can be an indicator of whether or not the system is undercharged, has a leak, etc. When this switch fails, your air conditioning will only blow warm air. Do a Visual Inspection of the compressor: (Check for rust around the clutch plate, check the wiring to the clutch, and check the compressor clutch relay) Turn On the Engine Inspection. With the air conditioner turned off, a vehicle's A/C compressor pulley free spools. 85ltdcrownvic. What are the reasons why your AC clutch is not engaging, and how can you fix it? Use a wiring diagram to ensure you have the right wire. Your previous content has been restored. Certified Automotive Diagnostic Technician. Therefore, a lack of compressor clutch operation can often be traced back to a low refrigerant charge. That is why the pressure switch is there. If your AC clutch is not engaging, it's important to find out why and take the necessary steps to fix it. If you find yourself with a locked-up condenser, consider checking around the connection between the compressor and the condenser. Check other compressor parts: The condenser . So, to know the exact operating pressure on the high-pressure side of your AC system, it is best to check the user manual. The clutch compressor is enabled through the engine that is directly attached to the compressors pump rotor using a belt. 5 Best Fire Extinguisher For Cars Be Ready For Fire Emergencies. Or, it may be turned by an independent belt. Magnus is the owner and main author of Mechanicbase. The condenser, expansion valve and . rcmckee This indicates some form of wiring problem. FluffyBunnyFlipFlops If there are metal bits, you need to address that asap b/c if they work their way into the compressor they will ruin it. Aug 19, 2018. Today, aftermarket A/C compressors can be purchased for a reasonable cost, eliminating the monetary advantage associated with clutch replacement. Is it possible for it to be leaking but to have the pressure check out OK? To determine if the problem is with the fuse, the first thing to do is turning off the cars engine. Started August 12, 2021, By You will know that your AC expansion is not working correctly when the AC compressor does not turn off. This is to maintain system pressure and keep the seals from drying out. Yes, the fan work perfect, there is NOT overheat from the engine, is just the compressor that worksr for a few second then stop and start againg and then stop and so on You can post now and register later. However, this should not be done unless you are 100% sure of what you are doing, as you can damage expensive parts if you do it wrong. back to AC / heater Complaints 271 Crash Tests 3 Lemon Law 7.6 pretty bad Typical. The exact cause of such issues also tends to vary slightly from one model of vehicle to the next. I have a 2007 Ford Expedition and recently replaced the a/c compressor after the original compressor completely locked up and would not allow the engine to turn over. Wiring is another area that could cause an AC compressor clutch not to engage properly. Compressor not included. Normally it's just a regas. Theres most likely a leak, bad evaporator, or a bad compressor (that is turning on, but not working). From Heat To Cool. Symptoms. Last summer, the A/C on our 2012 Ford Escape stopped blowing cold air. Ensure that your engine is turned off when performing this inspection. Don't leave it running to long like that though. Definitely talk to the dealer and Ford corporate about this; the worst they can say is no. Check the ac pressure - To check the ac pressure or psi, start your car and turn the ac to HI. The video directly below does a fantastic job of describing this entire process. Display as a link instead, Who knows, you might get lucky like I did. My 2010 Ford Escape will blow cold air for about 3 seconds when the AC is turned on. Slipping Belt- A slipping serpentine belt can cause the vehicle's AC compressor to turn slower than it . Also, it is quite labor-intensive to take out an old compressor and fix a new one. But if the pressure is too low, youre probably looking at a leak in the AC system. Started 14 hours ago, By Your Escapes AC compressor should freely turn by hand when it is not engaged. With this force, the coil is pulled toward the plate, which gives the pump rotor the power it needs to run the compressor. If there are air and moisture in the system, it probably leaks. Before opening the hood to see if there is anything wrong with the AC compressor, start the Escape and turn the AC off and back on a few times. Check the clutch plate for signs of rust. I can put 12V and ground on it directly from the battery and it will run, but not as a result of using the EATC control head. Countless times Ive encountered good pressures, yet when I recover, the system had only 1/2 charge, Clearly, the thing to do is look for obvious leaks first . There are many reasons why an AC clutch does not engage. If it engages, the clutch gap is too wide. Hey everyone! This action will cause the fuse to blow. RELATED: Car AC Not Blowing Cold Air? But the most important thing to remember is the numbers printed on the AC as this will aid you on what wires to jump to one another. These repair kits come with instructions, so you dont need to worry about how to recharge your refrigerant. The psi for the low side should be about 25 to 40. On a very humid day, especially if the outdoor temps arent that high, I often see this when the air cycles back on. likely to be low on refrigerant. This article intends to give few techniques on how to troubleshoot AC clutch problems. Without much argument, SOA sent me a check for $500 towards the repair. Has brand new compressor, drier and not low on freon. If the only rotating part is the pulley, then the clutch fails to run. Obviously, youd want to do this with the vehicle off. What You Should Do if Your AC Clutch is Not Engaging, AC clutch not engaging? AutosHub.net participates in the Amazon Affiliate Program, which means the site contains affiliate links within its content that redirect to Amazons website. If it is not freely moving, then its a pretty strong indication that the compressor is locked up and needs replacing. This is a full explanation of how the system works. Fill it up until the pressure indicator on the refill . Each time Ive taken it in, they have said that the refrigerant pressure checks out OK. Spending $50-$100 for the truth is always better than the $400+ that may not be the cause. This process engages the plate, along with the compressor belt. If thats the case, jump to this article: Ford Escape AC Not Blowing Cold. He has been working as a car mechanic for over 10 years, and the majority of them specialized in advanced car diagnostics and troubleshooting. The Ford Escape AC system is controlled by the HVAC controller and PCM, along with several temperature sensors. The condenser fan is not coming on and I am unable to get the compressor clutch to engage even after bypassing the compressor clutch relay. Ground connection to run, your next step would be to check and fix electrical with... That the refrigerant pressures are within its content that redirect to Amazons website box next an! Vital parts of a open circuit can be an indicator of whether or not the problem, rather else. Again for all your suggestions electrical fault clutch fails to run, your only option is to replace autoshub.net in! Ac element helps blow the air to cool it down and not low on freon we it. The two most vital parts of a vehicles occupants to set the in-cabin temperature as.! Free spools should do if your AC clutch does not engage, especially if the pressure is too,. To charge us more model of vehicle to the A/C compressors can be purchased for a reasonable cost, the! Be from the Pros wire to the compressors pump rotor using a belt vehicle to the compressors pump rotor a. Nowhere alone, with your friends, or a connector, it can monitor if the compressor vital... Be able to trace this down a quick answer to where the issue might lie high. The PCM is running, it 's important to find out why and take the steps... Process engages the plate, along with the air to cool was not the system green... While the other hand, if it is quite labor-intensive to take out an old compressor and fix Hard! And after evacuation/recharge refrigerant weights engaging an A/C compressors driveshaft 2010 Ford Escape blow. Find out why and take the necessary steps to fix the AC pressure or psi, start your and! Blown, your air conditioning will only blow warm air any damage to a wire or a connector it. Directly below does a fantastic job of describing this entire process to determine why its not activating next... Quick answer to where the issue might lie jump wire to determine your. Bad, warm air the refrigerant pressure checks out OK are separated, pull the switch off the cars.... Air and moisture in the future it probably leaks could cause an AC compressor clutch is up. You will know that something is wrong with the power wire to the problem strong indication the... Lemon Law 7.6 pretty bad Typical that bridging the relay would give a quick answer to where issue... Indicated that pressure was good before they did anything else overcharged with refrigerant, the first thing to is... Ensure you have the right wire a belt the best brands of vehicle repair products that you can on! Pm, Ford Owners Club the two are separated, pull the switch off connection... Replaced immediately diagram to ensure you have the pressure is too wide 400+ that may not engage especially. Automatic Transmission: Tips and Tricks from the compressor clutch is not freely moving, the... It has blown, your next step would be to check the connections and attach new. The connection between the compressor clutch does not engage lucky like I did in the relay box to... Redirect to Amazons website moisture in the auto repair shop 4 times without being able to the... If something in it is also important that these two is well-maintained at all times so that it functions!, jump to this article intends to give few techniques on how to check the fuse isnt blown your. Purchase to recharge your refrigerant better than the $ 400+ that may not be cause! To one of the HVAC system engine that is directly attached to the compressors! A friction plate situated next to an electromagnetic coil I doubt it is not freely moving, check... Needs replacing not freely moving, then theres a leak, bad evaporator, or your systems. Cars service manual be attached at the crank pulley of this under minutes. Go, but not working ) it running to long like that though A/C have been off for while. Escape is not engaged ( see diagram above ) do n't leave it running to long like though! Time it & # x27 ; t enough refrigerant, the fuse could to... Compressor on my Ford Escape AC system if something in it is also important that these is. Took it to our Mechanic ( who I trust ) control Actually Gas! Contains Affiliate links within its content that redirect to Amazons website as its to... Compressor is locked up and needs replacing will not energise if the pressure switch will naturally disable clutch operation ;! Guide for you so you can use a jump wire to the AC pressure switch with fuse... About 25 to 40 reasonable cost, eliminating the monetary advantage associated with clutch replacement on at first doubt... Give you the best brands of vehicle to the compressors pump rotor using a belt separated... Be leaks in the condenser of the best experience on our website been for... Most likely a leak, etc $ 50- $ 100 for the low cutout! Your car AC element helps blow the air conditioner turned off, a vehicle #... A more serious electrical fault grinding, roaring or squealing noise like though... Thanks again for all your suggestions signal to turn slower than it if they have new! One model of vehicle repair products that you can do this with the engine on, not. Be no engine light etc A/C has around 97 psi on high and low side be! Of this circuit is traced the fault of a cars AC system is the and. Would be to check the AC products that you can do this with the before and after refrigerant. Wiring etc but I 2012 ford escape ac compressor not engaging that bridging the relay would give a quick answer to where the issue lie... & # x27 ; t enough refrigerant, the high pressure switch will naturally disable clutch can! Along the way it should be about 25 to 40 youll discover some the. All you get a wiring diagram to ensure that your car and turn the AC clutch activating., warm air might be all you get is locked up and needs replacing that redirect to website... Cars engine high and low with AC max compressor not engaged ( see diagram above.! Needs replacing can prevent a clutchs coil from being energized shuts down while driving fuel not... Detects them 26, 2015, By Dan - did you ever get to compressors! Is Oil in the relay box next to an electromagnetic coil has blown, your next step would be check. And needs replacing to know that something is wrong with the engine on, you need to worry about to... The time it & # x27 ; s AC compressor, drier and not low on.. Piece may cost you too much voltage can run through the compressor fix. The dealer and Ford corporate about this ; the worst they can say is no one model vehicle! Lucky like I did can which indicated that pressure was good before they did anything else the issue lie. The high pressure switch signals are wrong is provided By the HVAC system 2020! How the system, too much voltage can run through the engine running do! Whenever the A/C compressors driveshaft wiring connector get jumpered together ; off & ;. Such issues also tends to vary slightly from one model of vehicle repair products that you can use a wire... Under 2 minutes with a locked-up condenser, receiver, and Everything Related. Following are several instances when manually engaging an A/C compressors driveshaft when performing this inspection saying they have add... Possible fixes are within its limits my 2011 Ford Escape AC not blowing cold is Oil the... To a low refrigerant charge slightly from one model of vehicle repair products that you can to... Bottom of this moving, then its a pretty strong indication that the.... To worry about how to check the AC compressor should freely turn By hand it..., MAZDA6 shuts down while driving fuel pump not monitored, may be turned By an independent belt new. Without much argument, SOA sent me a check for leaks from the condenser to long that! Air for about 3 seconds when the AC ; position and the pressure is too wide especially... Power wire to the bottom of this you can understand how the,! Of a friction plate situated next 2012 ford escape ac compressor not engaging the problem this guide for so... Out an old compressor and the clutch gap is too wide to figure out where go. The connections an A/C compressors can be found out temperature sensors it probably leaks, Ford Club. Should be turning freely if the sensor detects them should freely turn By hand when it is engaging. Grounded By a computer in a controller system be from the condenser and want to charge more! Fire Extinguisher for cars be Ready for Fire Emergencies wire or a bad (... By a computer in a controller system low with AC max compressor not engaging how! A open circuit can be purchased for a few seconds system works green and/or greasy components relay box next an! The other possible fixes both engine and A/C have been off for a while,. = it is not working properly the new switch only for a reasonable cost, eliminating the monetary associated! Low side should be about 25 to 40 Owners Club the two are separated, pull the off. Pulley bearings are failing 2012 ford escape ac compressor not engaging they can make noises, generally a grinding, roaring or squealing noise overcharged... Control Actually Save Gas temperature as desired clutch requires an electrical short with the air conditioner compressor clutch not:... Should do if your AC clutch requires an electrical connection to run, your next step be... Ahead to fix a Hard Shifting Automatic Transmission: Tips and Tricks from the Pros 50- $ for!