I own a '94 Pontiac Grand Prix SE. Sometimes when I start my car, it will sputter out if I don't apply some gas to it initially. Then, once I do restart it, the acceleration meter goes really high while in park and won't come back down until I put it in drive or reverse (holding the brake down, of course).
2006-10-05 00:54:04 · 7 answers · asked by LG 1 in Cars & Transportation ➔ Maintenance & Repairs
throttle position sensor
2006-10-05 01:00:50 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The Idle air control valve (IAC) could be the problem. They get carboned up and start to stick and won't open or close properly. Also check for vacuum leaks under the hood.
A lean running engine will speed up faster than one that isn't lean. Low fuel pressure can cause this.
The engine stumbling when it's cold could be a leaking injector or a valve seal leaking oil onto a spark plug which quickly burns off after the engine is started. This will also cause a fluctuation in idle speed. Check the plugs for oil deposits and run some Berryman's B-12 through the fuel system to clean the injectors and see how that works. There are other things that can cause that problem, such as throttle position sensor, fuel pressure regulator and sticking throttle cable, EGR valve not working properly, etc.
If all this fails, take it to a qualified tech and have a computer scan run on it. Hope this helps.
Master tech 40 yrs.
2006-10-05 08:07:07 · answer #2 · answered by Cal 5 · 0⤊ 0⤋
WTF is the acceleration meter? If it truely was an acceleration meter, wouldn't it show zero if you were standing still? Could this guage really be the RPM's?
I think you have a bad throttle position indicator or idle solenoid. Take it to a shop to have that confirmed.
2006-10-05 09:04:06 · answer #3 · answered by Jeffrey S 6 · 0⤊ 0⤋
Get the throttle cable checked or look at it your self. Dies when started might be idle control. 13 year old car might need a little work.
2006-10-05 08:00:18 · answer #4 · answered by John Paul 7 · 0⤊ 0⤋
Get your fule filter checked,also the throttle at the carb maybe getting stuck
2006-10-05 07:58:11 · answer #5 · answered by Anonymous · 0⤊ 0⤋
There's a small valve at the air filter that needs to be changed
2006-10-05 08:08:30 · answer #6 · answered by davmanx 4 · 0⤊ 1⤋
Sounds like you have a problem with the "choke." Take it to someone who can fix it. It is usually easy to do.
2006-10-05 08:02:21 · answer #7 · answered by michaelsan 6 · 0⤊ 1⤋