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
Rev Counter Problem
Hello. Your vehicle will automatically shift at different points in time, at different speeds in order to maximize power and response. At lower speeds the gears will hold longer, until 4k rpm, and shift later, in order to accelerate at...
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
transmission not shifting and the rpm's keep climbing up.
Hi there. It seems that the gears are slipping and causing the rpm's to climb up. Check the transmission fluid and make sure that it's full and red in color. Very dark red or black transmission fluid is an indication...
Question
Why does my car loose RPM when I'm driving?
Hi there. First check all of the fluids and make sure that they are full and top off all low fluids. Then check the battery and make sure that it has a full charge of 12.6 volts. If the voltage...
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
Engine light came on saying transmission system malfunction.
Hi there. The code is coming up for the torque converter clutch (TCC) is not working. Check the TCC fuse and see if it has blown. If the fuse is good, then the solenoid on the transmission that controls the...
Question
Engine only runs at 650 or 1300 rpm's, and nothing in between 650 and 1300 or above 1300 rpm's.
Hi there. First check the air filter on the engine. A dirty air filter will starve a diesel engine and prevent it from running correctly. Then check the fuel / water separator and see if there is a drain valve....
Question
I have a bus that contain a Cummins engine and Allison transmission. The problem is that the vehicle does not exceed the speed 80 Km/h / 50 mph.
Hi there. Check the fuel filter and the fuel water separator for if they are old and need changed. Check the fuel water separator for a valve on the bottom and if there is a valve, if you can open...
Question
MY car use to jerk at 700 and at 500 rpm it will quench. Injector, cam camshaft sensor, and spark plugs have already been changed.
Hi there. When the engine was washed off, water could have gotten into the air box and onto the air filter causing the engine to suck up some water when it was started. This could have caused the engine to...
Question
My RPM is very erratic and the engine surges on my 2006 Hyundai Elantra
Hello. I would usually start by scanning the computer for codes to see if anything comes up. If there are no codes then I would check and see if there are any sensors that are not reading correctly. It sounds...
Question
High RPM's after tune up.
Hi there. Sounds like the rodent that nested on the engine may have knocked off a vacuum hose or chewed through a vacuum hose. The engine idle could be high for a vacuum leak or the idle air control valve...
Question
Engine caps at 3000 rpm's, no cel light, and no smoke of any color. Uncaps when restart the engine.
Hi there. There could be an issue with the fuel system causing the engine to stumble and bang at times. Check the fuel / water separator on the vehicle and see if its been replaced before. If not, then the...
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
Strange rattling sound from the engine when RPM goes down from 3,000.
Hi there. The noise that you are hearing is heat shields on the exhaust system are loose causing a rattling noise. Either the shield on the manifolds are loose or the shields on the catalytic converter are loose. If you...
Question
when i start my rav4(1997) the rpm goes high for about 5 min althought that wasnt occur before a period of time ,, what might be t
Hello, thank you for writing in. There are several causes for high idle after starting. The first thing to consider (although it has its limits), is that the engine does need more fuel when cold. This is why all cars...
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