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Check the shop manual for your car. Every car has a limit as to the highest rpm the engine will go before it stops. It is a safety feature. 4,000 rpm sounds a little low, but it could be correct. Normally, it is higher. If it is higher, you either have computer problems or a broken wire or a wire with a little insulation missing.
What else can I help you with?
Will Mechanical idle stops will always be set to a higher speed than the engine idle speed?
Yes
Will Mechanical idle stops always be set to a higher speed than the engine idle speed?
Yes
Mechanical idle stops will always be set to a higher speed than the engine idle speed.?
Yes
Why wont my 2002 grand am gt idle above 4000 RPM's. It idles fine but when the accelerator is pressed the RPMs go up to about 4000 and it stays there just fluctuating between 3500 and 4000?
The engine has a rev limiter while the transmission is in neutral. It will rev to higher rpm's when the transmission is in gear.
Very rough idle when dropped into gear on your 99 Chevy Tracker with the 2.0 engine runs fine otherwise have replaced the PCV and plugs no help?
you need the fast idle adjusted on the engine you may have idle set where it sounds fine in idle but not high enuff when dropped in gear.
On a 1993 Saturn SC1 would the map sensor or idle sensor cause the engine to idle high 2500 to 4000 rpms?
Could be throttle plate stuck open Try to free it with screwdriver with engine off
What would cause a 1996 Chevy Corsica to idle high then idle fine after turning the engine off and on again?
check the soleinoid
Why does the engine idle go up and sometimes turns off engine and down at stops on 97 Mercury Tracer?
The engine idle on a 1997 Mercury Tracer may fluctuate or turn off at stops due to several factors, including a malfunctioning idle air control valve (IAC), vacuum leaks, or issues with the throttle body. The IAC controls the amount of air entering the engine at idle, and if it fails, it can lead to unstable idle speeds. Additionally, vacuum leaks can disrupt the air-fuel mixture, causing the engine to stall. Regular maintenance and diagnostics can help identify and resolve these issues.
Why Car engine shake when AC is on at idle?
The engine idle may be set to low to compensate for the AC compressor starting up. Rev the engine a few times to see if it stops. If it doesn't, there may be a problem with the AC temperature signal or motor mount.
Zx2 shudders and dies out at stops and idle?
If a Zx2 shudders and dies out at stops and idle, the idle might need adjusted. If the idle is set too low, it will not maintain enough power.
Diesel engine shakes and shudders in idle?
If it is running fine at high revs the most likely problem is an injector
Why do my Car stalls went sitting still?
if you do have gas in the car then it could be the idle control valve. it stops the engine from stalling when the car is stationary
