Posted by Howard Smith-Brown on Jan 30, 2014. Your Escapes exhaust pipe may have gotten pinched. Have you driven your vehicle over something that scraped the bottom hard? The most popular service booked by readers of this article is Vehicle Drivetrain Inspection. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. My car has an automatic transmission. Idling occurs once you start your car and leave it running without hitting the gas pedal or shifting gears. 2. The wrench lamp is not a maintenance light. Thankfully, its one of the easiest fixes to perform. If your transmission is shifting hard, the first thing that you are going to want to do is check the trouble codes if you have a check engine light. It should stall out when giving it more gas. Your tachometer is going to tell you that theres a problem brewing beneath the surface of your engine. Rebuilding or replacing the transmission in a vehicle is one of the most expensive auto repair projects that there is. Auto parts stores sell dedicated MAF sensor cleaners. If it notices wheel spin it will delay shifting since you don't want it changing gears if it catches on clear pavement all of a sudden. On the other hand, the RPMs decrease when you release the accelerator. Listen for anything out of the ordinary. I've had them come loose up there, but then most likely you'd have a cruddy idle. 2008 Ford Escape takes longer to shift into 3rd or 4th gear? Motor Vehicle Maintenance & Repair Stack Exchange is a question and answer site for mechanics and DIY enthusiast owners of cars, trucks, and motorcycles. The contact owns a 2007 Ford Escape. SEE, I think it's a 15 pin plug and two wires change on the plug fro 95 to. If there is any interference, the IAC cannot work properly and you will likely notice RPM fluctuations. Copyright 2023 Mechanic Base. The only way to know if a fuel filter is bad VS a bad fuel pump is to test the fuel pressure coming in and out of your vehicles fuel filter. The Fora platform includes forum software by XenForo. The contact stated that while driving at 45 mph, the overdrive warning light illuminated independently and the vehicle failed to accelerate when the accelerator pedal was depressed. This is typically an issue related to the transmission. 4.At a very exact rpm, the car will feel like it is running smoother than usual. It might also just be dirty; it can often be cleaned without replacing it. A faulty torque converter is a very common part that can cause a slipping transmission. It mixes air and fuel and needs a strong ignition of the two to run correctly. Regardless of the decision, whether its repairing or getting rid of your vehicle, youll want something done to it in order to avoid putting yourself in a potentially dangerous position. A transmission with fluid thats low, will not operate normally. If one breaks, it can lead to jerking when braking, accelerating or putting the vehicle in gear. The shift kit just a small thing that you install in the tranny. In neutral the engine is doing less work because it is not trying to turn the drivetrain. Whatever decision you end up making, always consult a professional beforehand for help with diagnosing the problem and coming up with a solution that will work best for both your wallet and safety concerns. Shift solenoid pack replacement cost: $300-600$ Valve body replacement cost: $500 to $1000 The price is also affected a lot depending on what parts and transmission fluid you are using. The transmission handles all of the gear shifting. SEE, I think it's a 15 pin plug and two wires change on the plug fro 95 to. Your vehicles performance may suffer, and its fuel efficiency will plummet significantly. At first start up of the day, the engine idles at about 2000 rpm before gradually decreasing to about 1000 RPMs in the space of about 2 mins. If you look at your cars tachometer, youll see RPM as a number on the dial. The best answers are voted up and rise to the top, Not the answer you're looking for? What is the RPM range for an automatic transmission? The modulator could have developed a leak, but then you'd most likely be pulling ATF into the intake. 2008 Ford Escape wrench light is on Doesn't shift until 3500 RPM - Ford 2008 Escape question . When a car revving in neutral, there are two main cause of this problem: a vacuum leak or a seized idle air control valve. In most cases, transmission shudders occur when shifting your vehicle into overdrive or when you drive up an inclined surface while your vehicle is already in overdrive. I have a 1987 Ford Ranger with the 2.9l 4X4 with ext cab. If you notice any of these signs other than fluctuating RPM, you should get your spark plugs changed ASAP. Any suggestions? So, make sure you get the trouble codes and take it from there. If you are used to driving your car, you will get accustomed to whats normal for your particular model. We recommend performing a tune-up first to see if that resolves the problem. Its the same if youre in 2nd at 1,800 RPM going 10 MPH and attempt to increase speed. In these cases, it might be best to visit your local auto repair shop. Contact your authorized dealer as soon as possible. Check the vacuum modulator like Flintstone sez. You should hear the misfire when revving the engine when the vehicle is parked. Flat rate pricing based on labor time and parts, Trusted mechanics, rated by thousands of happy car owners, Hand-picked, community-rated professionals, Over 25,000 topics, from beginner tips to technical guides, Check cars for recalls, common issues & maintenance costs, Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance. Go through the diagnostic steps listed above. It should start out slipping, and then eventually no movement. We also look at how to diagnose the problem and fix it for a smoother ride. The automatic transmission may develop shifting concerns. But, more often than not, its going to be the spark plugs or coil packs that are the culprit. When you are accelerating, the RPMs naturally increase. As always, if you notice anything out of the ordinary, make sure to have it checked by a professional. What could a smart phone still do or not do and what would the screen display be if it was sent back in time 30 years to 1993? How do you jump start a push button ignition. Additionally, finding and repairing a vacuum leak or having the transmission worked on could easily break the bank. Check the governor. I saw it on a 4 cylinder Mazda 626 and a 4.6l Thunderbird. When shifting gears, the RPM should be about 1200 1800. A quick visual inspection will confirm its broken. I brought the . If you have a bad TPS, the car can accelerate on its own with an electric throttle body, whether you are pushing on the gas pedal or not. Did you check your transmission fluid level? RPM fluctuation is a common symptom of worn-out spark plugs, especially in older vehicles. Before the transmission ran out of fluid, you should have noticed the RPM going up too fast for the speed you were going, indicating that the transmission fluid was low. Take your automobile to a professional mechanic to have the vacuum leak fixed. All three can cause your Escape to jerk while accelerating. The engine may have trouble starting. If your car develops a transmission fluid leak, your vehicle will begin to rev at higher RPMs due to the torque converter or gearbox band slipping. Replacing the O2 sensor in question is the most common fix. Malfunctioning Crankshaft Position Sensor, torque converter will not function properly, How to find a Vacuum Leak & How to Fix It (8 Easy Steps), How to Clean a Throttle Body (10 Steps DIY), How Much Does a Front Brake Job Cost? The vehicle may die when you give it gas. If the torque converter has gone bad, it will no longer be able to do this job. Okay guys, hopefully somebody can help me. The throttle body is an important part of your air intake system that controls the air flowing into your engine. Or might get him to check it for me. RPM fluctuation is a common symptom of worn-out spark plugs, especially in older vehicles. All did nothing. Precipitation (in) 12AM 3AM 6AM 9AM 12PM 3PM 6PM 9PM 12AM 0 10 20 30. Check out our discussions on the Ford Escape, Mustang, Edge, F-150, Raptor, Explorer, Focus, Fusion, Fiesta and more! The trucks transmission has been on the frtiz since I purchased it. If the engine cant keep idling, it will continue trying to get it revved up to compensate. Very helpful, answered all my questions. Im guessing, from the looks of this guy, he didnt drop the tranny to install it. Harsh or Improper Shifting. By clicking Accept All, you consent to the use of ALL the cookies. In short, Most 2.0l engines or low cars get an RPM of 500-800 RPMs when starting a Car whereas for Bigger engines a normal start RPM is between 550 to 750 RPMs. It may feel like it has a hard limit to how much gas you can give it. too big of a job for me to do so i guess its going to have to go to a trans shop. A variety of parts go into ensuring that the oil supply in a car stays at peak levels. Since the transmission speed sensors monitor the input and output shaft speed, it also plays a part in monitoring the cruise control. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. All Rights Reserved. You may also notice poor acceleration, a drop in fuel economy, and jerking. January 2022 Jason, MAZDA6 shuts down while driving fuel pump not monitored, may be no engine light etc. Fuel injectors allow the engine to receive the fuel needed to run properly. If your Ford Escape is jerking when you press the accelerator, a few common issues can cause this. When your car is idling, there shouldnt be any surging or fluctuating, either. . Checking for trouble codes can make the diagnosis a lot easier. If it is really dark, burnt, or past the time that the manufacturer wants it changed, changing the fluid may stop the transmission from shifting hard. That is an obvious sign there is something wrong. As soon as there is RPM fluctuation while driving, its natural to take notice. It may be due to faulty transmission speed sensors. My first hybrid, strange electrical problem, 2007 Honda Civic Hybrid. 97 it's a, I have a 2007 h3 hummer base model. Defective Transmission. If you decide not to repair the vehicle, at least make sure you get rid of it before any major damage occurs. Similarly, RPMs will decrease as you press the brake or let up on the accelerator. Gear Grinding Another major transmission problem, commonly seen in the 2008 Ford Escape, is the grinding of gears; it implies that your clutch isn't releasing or the shifter has an adjustment issue. But we still need to determine if that is your issue. If one is faulty, it can change the air-fuel ratio to the point that your Escape wont accelerate well. When theres a vacuum leak, the engines air supply gets interrupted. If one of your fuel injectors is clogged or not firing correctly, it can cause a jerking sensation. The longer that you drive when it is not shifting right, the more long term damage that you will do. If the RPMs seem low and they are fluctuating, you might be looking at a dirty throttle body, defective spark plugs or a clogged air filter. The timing chain (or belt) keeps the upper valve train synced with the crankshaft. More often than not, low fluid will cause a transmission to slip, which creates softer shifts. One of the most common automatic transmission problems is shifting hard. It's also common that a problem with these sensors can impact the shift timing, extending the interval between transmission shifts. Also known as a torque converter shudder, a transmission shudder refers to when your vehicle's transmission begins to noticeably shake or tremble convulsively. Can members of the media be held legally responsible for leaking documents they never agreed to keep secret? Air/Fuel Mixture. Should either or both of these speed sensors fail, you may notice one or more of the following 3 issues: 1. Ford Trucks | Utes | Vans |SUVs | Crossovers, Ford Escape, C-MAX, Mercury Mariner Forum. The fluid level is good. If there is something wrong with the engine crankshaft position sensor or the wirings, you can see a fluctuating RPM speed. Of course, RPM varies depending on the car. If the transmission filter is clogged it can cause the operating pressure inside the case to get too low. Had transmission rebuilt (Pro).My problem is that when it gets around 35, 8L90E Specs, Performance, and Identification, TH400 Transmission Specs, ID, and Common Problems, Ford Windstar Jerks When Accelerating: Causes + How to Fix, Chevy Avalanche Jerks When Accelerating: Causes + How to Fix, Mazda 6 P0320: Meaning, Causes, & Diagnosis, P0300 (random misfire) P030X(Where X = the misfiring cylinder ). My car has 200000 miles. You should check the transmission fluid immediately. If the desired gear and the actual gear do not match, then the PCM will set a diagnostic trouble code (DTC) and illuminate the Check Engine Light. This is not very common, but it should not be overlooked. I am wondering what the shift kit is and how hard it is to take it out. There are a ton of 02 sensor codes. There are many reasons for this, and all of them will be reviewed in detail below. There will be a 1-2 shift 2-3 shift 3-4 shift and torque converter lock that will give a rpm drop like a shift. 3.While keeping the clutch depressed, raise the engine in steps of about 250rpm (Smaller steps if you are really particular). If something has gone wrong in the transmission, your Escape may not be able to accelerate anymore, or itll. Misfire. There might also be a problem with the engines capability to distribute power to the rest of the vehicle. This will change the shift quality. If your check engine light is on, get a code scanner and see what trouble codes are stored in the PCM (powertrain control module). This can happen if a rich air/fuel mixture has run through it for a while. It is possible for the converter to clog. By description and year I'm going with a guess of code p0702 and a broken intermediate band in the Trans. Its located in different places depending on your transmission and engine size. If you put the truck in Drive it will shift into 2nd at very high rpms, then it wont shift into 3rd until about 55mph which is also a very high rpm. If it is an older model, it'll have a distributor and coil . That is RIDICULOUS, Cheryl. It is possible for the converter to clog. This sounds like a transmission issue since the gears are not changing at the right time. There are two ways that your Ford Escapes engine can be out of time. You can look at the MAF sensor and see if its dirty. You could spend $50 to $100 to perform a DIY tune-up that might resolve the problem. What years did the Ford Escape have transmission problems? Can a rotating object accelerate by changing shape? There are so many reasons your Escape wont accelerate. You may hear the injector ticking when backing off the gas. Do 2008 Ford Escapes have transmission problems? I bought it 2 years ago with 120k miles so I don't know it's past history, but there was evidence that it was taken in for regular servicing. You should hear the misfire when revving the engine when your Escape is parked. P0337 means that the crankshaft is suffering because of low voltage. If you dont get this fixed right away, it might cause you a lot of trouble. Spark plugs may need to be replaced as early as 30,000 miles, depending on what type you choose. That is RIDICULOUS, Cheryl. When accelerating, your automobile may experience misfires and jerking. Additional symptoms include misfiring and trouble to start the engine. Ford Forum is a community to discuss all things Ford. 12 gauge wire for AC cooling unit that has as 30amp startup but runs on less than 10amp pull. The following errors occurred with your submission, All Ford Ranger and Mazda B-Series models, Clutch, Transmission, Differential, Axle & Transfer Case, 1987 - 1996 F150 & Larger F-Series Trucks, 1967 - 1972 F-100 & Larger F-Series Trucks, Pre-Power Stroke Diesel (7.3L IDI & 6.9L). Check the throttle pressure cable adjustment. If your Escape doesnt accelerate, but the RPMs go up, its usually not an engine-related issue. Our certified mobile mechanics make house calls in over 2,000 U.S. cities. When pinched, exhaust gasses cant escape, and your vehicle wont accelerate. Under acceleration, RPMs will increase as you press the gas pedal. Terms of Service - P0150 (O2 sensor malfunction), P0151 or P0152 (voltage codes) Replacing the O2 sensor in question is the most common fix. It may seem like a dumb question, but I can't tell you how often I've found tiny oversights to be the cause. SEE, I think it's a 15 pin plug and two wires change on the plug fro 95 to. But doesn't hurt to try again, 2008 Ford Escape takes longer to shift into 3rd or 4th gear? High idle speeds waste fuel, cause extra wear and tear on your engine, and can be unsafe as well. Many people dont pay attention to the RPMs unless there is something wrong. There are several various severe engine issues that can result in irregular RPMs. There may be a burning or sweet smell coming from under the hood. If you press the gas pedal and dont immediately accelerate, youre lugging the engine. At the first sign of RPM fluctuation, you want to have the problem looked at. Youll likely get P0171 with the check engine light. If a crank or cam sensor is not reading the timing position correctly, it can cause your Escape to jerk. It is filled with transmission fluid, and it uses the fluid to convert power from the engine to torque to the wheels. Transmission only shifts at extremely high rpms! 97 it's a, I have a 2007 h3 hummer base model. If it's leaking a little power-steering fluid, it can be so expensive to fix, but you can choose to either have the Hi there, thanks for writing in about your 2007 Dodge Sprinter. Here is a list of practical things that most people can do when their transmission is shifting too hard. It releases exhaust gasses behind the vehicle, scrubs pollutants via the catalytic converter, and helps the engine adjust the air/fuel mixture via O2 sensors. It may also be dangerous to drive and cause an accident if left unchecked. The shift point sounds high due to the fact it's missing second gear then shifts into third. Under warranty we would remove the Trans and replace the band only. If there's a problem with the automatic transmission, the shifting could become irregular or delayed. kalamykid. I can't imagine that it isn't kicking a code somewhere but it may also need a more specialized code scanner than those used. How to Buy a Good Quality Camshaft Position Sensor, Symptoms of a Bad or Failing Support Bearing, Symptoms of a Bad or Failing EGR Temperature Sensor. About Us - When it is blocked, your Escape will struggle and jerk when accelerating. Interestingly enough, I have a 2008 Ford Escape Limited and have lost 2nd and 4th gears also. A lean or rich air-fuel mixture is usually caused by a bad O2 sensor or MAP/MAF sensor. Then it was fine when I accelerated to the speed limit 100-110 km/hr, but the rpms are higher than usual. Your Ford Escapes exhaust system has three functions. Features and Gadgets - Why the criticism and hostility? Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. In Brief In my 2008 Ford Escape Hybrid, the car will occasionally jump to a noticeable decrease in power and display a "Stop Safely Now" message. Theyre almost always going to result in your check engine light illuminating and staying on until you get them fixed. Allowing the RPM to go up to 3,000 RPM or higher increases speed but makes the engine work harder, which reduces fuel economy. Please register or login to enable Dark Mode. If the signals are lost from the transmission speed sensors, the PCM will set a DTC and illuminate the Check Engine Light on the vehicle dashboard. Privacy Statement - If your RPM goes up and down while accelerating its likely due to worn-out spark plugs, however, here are some other common causes: When your RPM fluctuates while accelerating, its generally due to a problem with the idle air control valve, or IAC, in your automobile. Throttle pressure is a mechanical signal to the trans that the pedal is to the metal, so kick down or stay on lower gear as long as possible. Purchase through links on our site, we may earn an affiliate commission, which supports community... Fluctuating RPM speed wires change on the accelerator it uses the fluid to convert power from the of!, 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1,.... Strange electrical problem, 2007 Honda Civic hybrid running smoother than usual accelerate! Pressure inside the case to get too low warranty we would remove the Trans an accident left... A 1987 Ford Ranger with the check engine light your tachometer is going to tell you that a... Calls in over 2,000 U.S. cities be the spark plugs or coil packs are... The cruise control install in the Trans and replace the band only wrench light on! If something has gone bad, it & # x27 ; t shift until 3500 RPM - 2008..., but the RPMs unless there is any interference, the shifting could become irregular or delayed occurs. This article is vehicle Drivetrain Inspection hard it is blocked, your to. The problem, but it should stall out when giving it more gas that is your issue clutch depressed raise! An older model, it will no longer be able to accelerate anymore, or itll up. Ford Escape wrench light is on Doesn & # x27 ; t shift 3500... Looking for repairing a vacuum leak fixed reviewed in detail below supports our community, its one the! Neutral the engine under warranty we would remove the Trans the O2 sensor or MAP/MAF.. Likely be pulling ATF into the intake often be cleaned without replacing it Doesn & # ;... Rpm fluctuations looked at its dirty up, its one of the ordinary, make sure to the! Suffer, and all of them will be a problem with the engine your. To a Trans shop a vacuum leak, the RPM range for an automatic transmission is., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada codes can the... Decrease when you give it gas into ensuring that the crankshaft engine-related issue major damage occurs trouble codes make. To try again, 2008 Ford Escape takes longer to shift into 3rd or 4th gear of... A 2007 h3 hummer base model not operate normally of trouble coming from under the hood unsafe as.... That will give a RPM drop like a shift places depending on the other hand the. My first hybrid, strange electrical problem, 2007 Honda Civic hybrid site, we may an! In fuel economy of worn-out spark plugs, especially in older vehicles wrench. Or the wirings, you consent to the point that your Escape to while. Run properly 30amp startup but runs on less than 10amp pull on could easily break the bank of.. The point that your Escape may not be able to do this.... Guess of code p0702 and a 4.6l Thunderbird of worn-out spark plugs especially! And hostility dirty ; it can often be cleaned without replacing it a tune-up first to see if dirty... Of them will be a 1-2 shift 2-3 shift 3-4 shift and torque converter lock that will give a drop... A 1987 Ford Ranger with the 2.9l 4X4 with ext cab high to. Between transmission shifts most people can do when their transmission is shifting too hard of a job me... Small thing that you will do of code p0702 and a broken intermediate band in the.! May need to determine if that is your issue hummer base model peak 2008 ford escape high rpm shifting. It out than usual firing correctly, it also plays a part in monitoring the cruise.! Fro 95 to breaks, it can often be cleaned without replacing it can impact the shift sounds! And Gadgets - Why the criticism and hostility converter has gone wrong in the Trans and replace the only! The 2.9l 4X4 with ext cab needs a strong ignition of the expensive... Booked by readers of this article is vehicle Drivetrain Inspection air intake system that controls air... The wheels can lead to jerking when you purchase through links on our,. Not work properly and you will get accustomed to whats normal for your particular model, it continue... The misfire when revving the engine cant keep idling, there shouldnt be any surging or fluctuating either... From there in over 2,000 U.S. cities look at how to diagnose the problem looked at that... Get too low what years did the Ford Escape, and jerking easily break bank... In steps of about 250rpm ( Smaller steps if you notice any of these speed sensors fail you. Between transmission shifts to increase speed two to run correctly the media be held responsible... Never 2008 ford escape high rpm shifting to keep secret high idle speeds waste fuel, cause extra wear and tear on transmission. Sensor in question is the RPM should be about 1200 1800 an older,. 3-4 shift and torque converter lock that will give a RPM drop like shift. And Gadgets - Why the criticism and hostility 're looking for a 1987 Ford Ranger with the.... It on a 4 cylinder Mazda 626 and a broken intermediate band in Trans... Clicking Accept all, you may also be a burning or sweet smell coming under... To start the engine crankshaft position sensor or the wirings, you may notice one or more of most. About 250rpm ( Smaller steps if you dont get this fixed right,. Crossovers, Ford Escape takes longer to shift into 3rd or 4th gear & # x27 ; ll a. Be a burning or sweet smell coming from under the hood 600, Toronto Ontario... Not operate normally fluctuating RPM, the car will feel like it has a hard to... Is parked means that the oil supply in a car stays at peak levels miles depending... Irregular or delayed but the RPMs are higher than usual ll have a 2007 h3 base... Often than not, its natural to take notice both of these speed sensors fail, you can look the... Part that can cause your Escape doesnt accelerate, but it should out! ) keeps the upper valve train synced with the engine is doing less work because it is not trying turn! Is parked jerk when accelerating, your Escape doesnt accelerate, but most. Pedal or shifting gears leak or having the transmission filter is clogged it can the! Start a push button ignition may suffer, and all of them be. Due to the use of all the cookies or both of these signs than! Can give it gas, will not operate normally crankshaft position sensor or MAP/MAF.! May need to determine if that resolves the problem looked at fuel and a. Does n't hurt to try again, 2008 Ford Escape have transmission problems is shifting too hard it 's 15! 12Pm 3PM 6PM 9PM 12AM 0 10 20 30 in neutral the engine caused by a professional to! Escape doesnt accelerate, youre lugging the engine to torque to the 2008 ford escape high rpm shifting that your Ford Escape have problems! The air-fuel ratio to the top, not the answer you 're looking for three can cause your Escape accelerate! Hand, the car first sign of RPM fluctuation is a common of... But the RPMs decrease when you press the accelerator rest of the two to run correctly a professional at to... Engine cant keep idling, there shouldnt be any surging or fluctuating, either most likely you 'd likely. Oil supply in a vehicle is one of your fuel injectors is clogged it can change the air-fuel to! The air-fuel ratio to the speed limit 100-110 km/hr, but then you 'd most likely be pulling ATF the... Places depending on what type you choose additional symptoms include misfiring and trouble to start the engine in of. Of your fuel injectors allow the engine to whats normal for your particular model is to take notice these! Mazda6 shuts down while driving, its usually not an engine-related issue Ford Escape takes to. Are the culprit not firing correctly, it & # x27 ; s a problem the! Recommend performing a tune-up first to see if that is your issue your air intake that. And your vehicle wont accelerate is clogged or not firing correctly, will! Either or both of these signs other than fluctuating RPM, you see! Suffer, and all of them will be a 1-2 shift 2-3 shift 3-4 shift and torque converter a... People dont pay attention to the rest of the easiest fixes to perform a DIY that! Higher than usual anything out of time Crossovers, Ford Escape takes longer to shift into or... Hummer base model, may be due to faulty transmission speed sensors,! No longer be able to do this 2008 ford escape high rpm shifting the hood a fluctuating RPM you! Him to check it for a smoother ride, exhaust gasses cant Escape, C-MAX, Mercury Mariner Forum into... Changing at the MAF sensor and see if its dirty the bottom hard beneath the of... Be unsafe as well most people can do when their transmission is shifting too hard, but RPMs!, if you dont get this fixed right away, it can change air-fuel. Changing at the right time fixes to perform a DIY tune-up that might resolve the problem and fix for... The spark plugs, especially in older vehicles if your Ford Escapes engine can be unsafe as well,. To try again, 2008 Ford Escape Limited and have lost 2nd and 4th gears.. At how to diagnose the problem interference, the RPMs naturally increase the automatic transmission problems is shifting too.!