1991 Pontiac Grand Prix "idle speed" Questions

...idle speed is controlled through the on board fuel injection control module (known as the PCM), even if u raise the idle at the throttle body the computer will slow it back down, however there is a ...

...IDLE SPEED CONTROL.IF IDLE SPEED CONTROL IS THE PROBLEM.BUY IT AND LET DEALERSHIP PUT IT ON BECAUSE IT WILL TO BE REPROGRAM.IF YOU PUT IT ON YOUR SELF WILL HAVE STALLING PROBLEMS.THE NEW IDLE SPEED ...

high idle car idles at 1500 rpm when warmed up. should be around 800 rpms sounds like idle speed control unit needs to be cleaned or replaced side of air intake unit should have electrical connector

...idle speed control valve and threottle butterfly? It may be your problem. Try the following to clean these parts.To correct this problem Buy a can of throttle valve cleaner (it is made by CRC) from ...

why my grand prix will start, but won't continue to idle? if the check engine light is not on as it idles more than likely the cause is one of 3 things ,a vacuum leak this will cause higher idle ...

...got a leak somewhere in the hose, or you left a connection open. You just need to get into it and find it. Not any good way to describe what to do, but the high idle speed is due to a vacuum

(1999 pontiac grand prix 3.1L) why is my rpm always on 1000 while idling instead of 0? RPM, revolutions per minute. This measures the crankshaft speed.When idling it should be at about 1000. And goes ...

...doesnt work,try keeping the car in drive at idle speed if possible without touching the gas pedal-even though it might stall,see if eventually the idle will raise up on its own.hope this helps

my car runs ruff at idle and dies when it idles in gear. runs fine at normal speeds throttle sensor adjust idle

idle speed, low vacuum readings, misfires during acceleration I'll assume it's the 3.8 motor, but it doesn't really matter that much. Check your chain play because it might have jumped a tooth or two.