Showing articles & questions for topic
RPM (Revolutions Per Minute)

Related articles

How Long Does a Throttle/Accelerator Pedal Position Sensor Last?
The throttle/accelerator pedal position sensor detects the position of the accelerator pedal. This information is then transmitted to the vehicle’s computer - the engine control module (ECM). From there, the data...
How to Monitor Your RPM Gauge to Get the Best Performance Out of Your Car
A car tachometer, or RPM gauge, shows the speed the engine is spinning. Watch your RPM gauge to improve your car's performance and fuel efficiency.

Related questions

Question
Lose rpm and hard to start. I have a code p0336 that is read on a scanner.
Hi there. The code for P0336 is referring to the crankshaft position sensor loosing a signal to the computer. I recommend replacing the crankshaft position sensor and it should fix all of your problems. If you need further assistance with...
Question
Hello,I drive a 96 Nissan maxima. It doesn't do this all the time but when I come to a stop in my car, sometime the rpm goes almos
Hello. A lack of acceleration and low RPMs at a stop can be caused by several components. When it comes to running issues like these, always start with the simple fixes first and then if the symptoms continue, you can...
Question
While in park and stepping on the gas at 4000 rpm exactly the vehicles starts shaking.
The engine computer has a built in rev limiter built in to the programming that will not let the engine go above 3800 to 4000 rpms when the transmission is not in gear and driving down the street. This is...
Question
Revs low when idle and falls when at traffic lights
Hey there. Even though you've cleaned the idle air control valve, that doesn't guarantee that the valve isn't still sticking or otherwise malfunctioning. You could try very gently tapping on the valve and see if that affects engine speed. The...
Question
The engine RPMs drop and it stalls
This may be a sign of a faulty MAP sensor. The Manifold Absolute Pressure (MAP) sensor is a key sensor because it senses engine load. The sensor generates a signal that is proportional to the amount of vacuum in the...
Question
When the clutch is engaged or in neutral it stays revved up at 2000 RPMs and won't go back to idle RPMs
The causes of high idle speed can be determined via a diagnostic. Engine idle speed is controlled via an idle air control valve (IACV). If the valve is malfunctioning, or even if the fuse to this electronically controlled valve is...
Question
The car wont go over 4000 rpms
Hi there. This sounds like the engine timing is off. Check the camshaft sensor and crankshaft sensor to see they are working. The computer has the engine in limp mode to keep the rpm's from going up. If the timing...
Question
Clutch gone out?
Hi there. It sounds like you do have a failed clutch disc, pressure plate, or stuck release bearing. I strongly suggest acquiring a qualified technician perform an inspection to avoid replacing unnecessary parts. YourMechanic has several technicians available that can...
Question
P0068? Runs rough and idles high
Hey there. This may be a sign of a faulty MAP sensor. The Manifold Absolute Pressure (MAP) sensor is a key sensor because it senses engine load. The sensor generates a signal that is proportional to the amount of vacuum...
Question
My 2002 Ford Crown Victoria is acting like it want to go, even though I'm not pressing on the gas
Hello. The most common cause of the high engine idle accompanied with a delayed acceleration will be a vacuum leak in most cases. This engine gets vacuum leaks on the vacuum connection on the intake manifold for the PCV hose....
Question
Idle is running high when driven. I put it in neutral and it idles at 2300 rpms. Just had a cold air intake put in and throttle cleaned
Hi there. Assuming your vehicle has ETC (electronic throttle control), "drive-by-wire" problems can develop when cleaning is performed. Manually opening the throttle plate may have affected the close position. An idle relearn performed with a capable scanner may resolve the...
Question
I've got a P0507 code, what can I do?
Hi there. It sounds like the idle air control valve is stuck at the high idle position. The idle air control valve is located on the throttle body assembly and allows air to bypass the throttle plate to control the...
Question
My car is having an RPM issue
Hello. It sounds like you are having idling issues. This may be related to a sensor, the accelerator, or the the ignition system. You may want to start by scanning the vehicle for diagnostic troubleshooting codes. Even if a warning...
Question
2014 Silverado 4x4 throws a reduced power over 3000 RPM but will reset if you turn the vehicle off for a few minutes?
Hi there. The code is for a limp mode when the engine is operating. This is caused by either a malfunction with the transmission or transfer case. Check the fluid to the transmission and the transfer case and make sure...
Question
My Tahoe is not wanting to start
Hey there. By having to feather the throttle a bit when the motor first starts suggests that you may have a low speed fuel delivery problem. This may be related to a dirty or failing idle air control valve. ...
Question
Truck will act like it is not getting enough fuel when cruisng. RPMs drop then comes back up or under load
Hello. I think you have called it, this is almost certainly a fuel supply issue. Installing a fuel pump pressure gauge which can be observed while driving will confirm this. Sources could include a worn out fuel pump, a fuel...
Question
About every 2-3 weeks the car will just stall, usually when stopped or slowing down. What is wrong?
This may be related to a dirty or failing idle air control valve. The idle air control valve reads the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and at...
Question
The car idles fine. It revs up but slowly drops RPMs.
Hi there: The idle is controlled by the idle control valve, mass air flow sensor, and throttle body of a fuel injected motor. Any of these components could be dirty, damaged, or have faulty wiring that is causing your engine...
Question
The car was running fine a week ago. The check engine light kept coming on when the throttle was above 2000 rpm's.
Hi and thanks for contacting Your Mechanic. Check the engine light for any other codes that would appear. This will direct you in the direction that is having a fault. If your engine is having an issue with the rpm's...
Question
RPMs jumps at idle, & sometimes stalls when gas applied after a stop at alight or sign and won't restart for a minute or so
Hello. A stalling issue like this may take some time to figure out. If you suspect your fuel tank is dirty, you may want to drop it and inspect it. However, these symptoms are more likely to be related to...

Need a mechanic?

Our certified mobile mechanics make house calls in over 700 U.S. cities. Fast, free online quotes for your car repair.

Get a quote

Post a question and get free advice from our certified mechanics.


Ask a question