Questions & Answers for: Pontiac Grand Prix idle problems

...Any help is greatly appreciated. Here is the most common cause of surges and stalls and low idle rough idle, it is the idle speed control air-bypass valve and throttle valve (IAC for short), ...

problems), it is in most cases the idle speed control air-bypass valve and or throttle valve and upper intake, these area's get full of gunk and combustion residue over the miles and cause idle issues

Excessive RPM's. Sporadic Idle problem. Sometime idle is fine around 1000, other time's between 1500 to 2800. have the idle air control and the mass air flow sensor checked out. Auto Zone will check ...

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 CONTROL HAS TO BE REPROGRAM THE THE PCM BECAUSE PCM DONT RECOGNIZE IT

...down and disconnect the Negative (-) battery cable for 5 minutes. The intake is now clean, if you continue to have the idle speed control problems you may need to seek the help of a

1991 Grand Prix 3.1L Won't Idle Without Pressing Pedal Car won't idle unless I keep a little pedal pressure. I changed the Idle Air Control valve and the Electronic Control Module (not the

2003 pontiac grand prix shakes when idle/cuts off when idle 2003 pontiac grand prix shakes and or cuts off when idle.what is the problem? check your codes and vacum hoses and see if it needs a tune up

when stopped the idle is bogging. but it takes off and drive fine just when I stop it idles low. adjust idle up adjust up untill no problem idling while in gear use 2 people some one in car braking

where is idle sensor loated on 1999 grand prix idle sensor location Idle Air Control is on the throttle body itself, small barrel shaped. Can be cleaned if carbon build up on the pintle is the problem

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 ...