My car wouldn’t revv above 3 rpm and when in motion, it doesn’t exceed 2 rpm, as such, it doesn’t select gear properly. The car
The car doesn't revv well. That is, if you try to revv when idling, it doesn't exceed 3 rpm, while in motion it doesn't exceed 2 rpm and the gear wouldn't select. No smoke!
My car has an automatic transmission. Honda Accord v6 2004.
My car has an automatic transmission. Honda Accord v6 2004.
Experienced mechanics share their insights in answering this question :
Hi there. To be honest, this problem could be caused by multiple fuel system or ignition system components. Some common reasons that an engine won’t accelerate properly include dirty EGR valve, mass air flow sensors, or clogged fuel injectors / throttle body issues as well. Some ignition components such as damaged or worn out spark plugs or distributor cap can also cause this problem. In order to correctly diagnose this problem, it would be best to have a professional mobile mechanic come to your location and complete a engine idle is rough inspection.
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The most common reasons are either a worn out, slipping clutch (in a vehicle with a manual transmission), or low fluid or a damaged torque converter or slipping clutch packs in an automatic transmission.
If your RPM starts fluctuating, there might be issues with the engine`s combustion process, a communication gap between the IAC and the ECU, or it can be a worn-out spark plug.
the over 3K RPM issue could be a Vacuum leak or a Crank Position sensor or even a Throttle possition sensor…
There are several problems which could cause this behavior, such as a bad throttle position sensor, fuel supply issues (low fuel pressure), or a dirty or bad mass air flow sensor. Problem codes will narrow the cause more quickly, and help avoid replacing parts that are not the problem.
A number of possibilities can include low fluid levels, dirty transmission fluid, or a clogged filter.
Worn Transmission Fluid (Automatic Transmission)
Over time, the transmission fluid gathers dirt and grime. This can cause the engine to run roughly, stall or fail to accelerate when you press down on the gas pedal. You may need to have a transmission fluid change before more damage is done.
Wondering what can caise slight rpm drop after pressing gas pedal. Hello, This is common with vacuum leaks. If there is already a good amount of air entering the engine with the throttle closed, opening the throttle (and letting in lots more air) can stall the engine or cause hesitation (which you have described).
The idle speed should feel consistent without skipping or slipping. In most of today`s cars, an idle speed of 600 to 1000 RPMs is average. If your car is idling rough, though, it won`t feel smooth. The RPMs will jump up and down, for example, or they`ll fall below 600 RPM (or whatever is typical for your vehicle).
The reason it will not go over 2500 rpm is because the computer is in limp mode. This mode is for when the computer has a failure in it. Limp mode will trigger if there is an issue with one of the vehicle`s systems that the manufacturer suspects would cause major problems.
So, 3000 rpm would be about 26 mph. As a rough approximation, add 2 zeroes to the mph to get rpm: 93 mph is about 9300 rpm.
This could be from low fuel pressure, a clogged fuel filter, a clogged air filter, a faulty throttle cable, carpet blocking the throttle pedal, ignition system failures, computer problems, timing belt jumped, transmission, exhaust, and the list goes on.
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the most relevant questions and answers related to your specific issue
My car wouldn’t revv above 3 rpm and when in motion, it doesn’t exceed 2 rpm, as such, it doesn’t select gear properly. The car
ANSWER : Hi there. To be honest, this problem could be caused by multiple fuel system or ignition system components. Some common reasons that an engine won’t accelerate properly include dirty EGR valve, mass air flow sensors, or clogged fuel injectors / throttle body issues as well. Some ignition components such as damaged or worn out spark plugs or distributor cap can also cause this problem. In order to correctly diagnose this problem, it would be best to have a professional mobile mechanic come to your location and complete a engine idle is rough inspection.
The RPM doesn’t exceed 3 on the dash board when idling, and rpm doesn’t exceed 2 when in motion. What is the cause?
ANSWER : Hi There,
It sounds like you may have a problem with your transmission causing it to go into limp mode which will not allow the car to exceed a specific RPM or speed when driving. The transmission control module will purposely do this when there is an error detected in the transmission such as a faulty speed sensor or solenoid.
It sounds like you may have a problem with your transmission causing it to go into limp mode which will not allow the car to exceed a specific RPM or speed when driving. The transmission control module will purposely do this when there is an error detected in the transmission such as a faulty speed sensor or solenoid.
A clogged or failing catalytic converter can also cause the vehicle to run sluggish as you have described. As you may already know, the catalytic converter converts toxic exhaust gases into less harmful pollutants that are suitable to be expelled into the atmosphere. When this is clogged, this causes these gases to be backed up into the exhaust system not allowing the engine to breathe properly. When this happens, the engine is forced to work much harder to expel these gases. This often results in the engine bogging down, hesitating, shaking and causing very poor fuel economy. I would recommend having a professional from YourMechanic come to your location to diagnose and inspect your vehicle.
My car will not start Intermittently. I purchased a new battery 2 weeks ago and yesterday the car wouldn’t start. Got a jump and
ANSWER : The issue you are having is probably due to an intermittent fault in the starter motor itself or a deficiency in the starter electrical circuit, for example a large voltage drop due to a poor ground or a high resistance connection. These issues can be readily diagnosed and resolved on a mobile basis if you request a hard starting diagnostic. If you request that diagnostic, the responding certified mechanic will get this resolved for you promptly. Based on Toyota’s Factory Service Manual, the battery should not be disconnected if the vehicle engine is running. The battery acts as a large resistive voltage sink and consequently taking the battery out of the circuit, while the alternator is still running, can create a voltage spike on the car’s electrical system which is not good for voltage sensitive components such as the engine computer. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.
Stays idling when I put it in gear, and the car doesn’t move. When forced into any gear without the clutch, the car does not shut off.
ANSWER : Hi there. The clutch may be worn and slipping causing the engine to stay running as the shifter is put into a gear selection. If the clutch was working, when put into gear and let off the clutch pedal, the vehicle will either move or stall out the engine. Check the slave cylinder and see if the return spring has broken off causing the clutch fork to stay engaged. Also the clutch adjuster cable could be out of adjustment or damaged. If the pedal and hydraulic assembly has no issues, then I recommend seeking out a professional, such as one from Your Mechanic, to help you diagnose your clutch.
The car doesn’t shift into first gear while it works fine in reverse
ANSWER : The problem could be that the internal transmission pump is weak, or the transmission clutch seals are leaking. It sounds like the transmission will need an overhaul.
I recommend having a transmission mechanic test the pressures and diagnose the problems to verify whether you need an overhaul with a new torque convertor.
gears shift but at a longner rate and the car is revving between 2 and 3 rpm’s while driving
ANSWER : If you have not serviced the transmission within the last 60,000 miles, you may want to try that. I recommend you have a shop drain the transmission, remove the pan, and replace the fluid and filter. I prefer doing that on older vehicles and/or vehicles that have not had transmission services performed at least every 60,000 miles. This may work but the "revving between 2nd and 3rd" may indicate the transmission will soon need some repair/rebuild. Yet, if you would like, a certified YourMechanic technician can come to your home and complete this transmission service for you.
My manual car won’t go into gear, it turns on and the clutch goes down perfectly fine. It happened after my gears grinded, the car
ANSWER : If the clutch mechanism is releasing properly, and the shift linkage is not malfunctioning, your transmission will have to be removed from the vehicle and inspected. Once a transmission has been removed from a vehicle, if the problem is a broken or worn part or parts, and the transmission has 100,000 miles or more, the most cost effective approach is to just simply rebuild the whole transmission. There are transmission rebuild kits that are sold just for this purpose. Rebuilding a transmission is no big deal and is indeed easier in many respects than rebuilding an engine. You can rebuild your transmission right in your own garage. You can NOT rebuild an engine in your own garage due to the highly specialized, and extremely costly, machine shop equipment required. Occasionally, mobile mechanics will take on a transmission rebuild job especially as once the mechanic removes the transmission from the vehicle, it is just simply a modular unit that can be easily transported to a mechanic’s shop and rebuilt right there and then returned to your vehicle. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.
Car won’t go into gear. 2002 Audi A4 Quattro
ANSWER : Hi there – Your symptoms describe the behavior to expect when your clutch hydraulics go out (clutch master and clutch slave cylinders). Check your clutch fluid level – it may be low. If the fluid level is low, this usually means your clutch slave cylinder has worn out, not unusual with your mileage, and should be replaced. I recommend a malfunctioning clutch inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.
