Is anyone on line to help me with this question? Where is the fast idle thermal valve in a 1997 Chevy astro van located?
check the ait. on yhe left side of carb..it control's idle.
When you turn on the headlights of any car it causes a load (or horsepower drag) on the engine. Your car has an idle problem and the load on the alternator simply exacerbates it.
It depends on the year. If you can't get the idle down, check for vacuum leaks. That seems to be a primary cause of high idle, especially for the TBI engines.
vacumm leak problem.
what is the down side of the 1997 buick park avenue
A bad idle air control sensor or a bad throttle position sensor.
A vacuum leak can cause that.
Sounds like you have abad vacuum leak,Or a bad idle control motor. Check vac leaks first.
1500 at first until it kicks down to 850 rpm
The idle speed is computer controlled on a LT1 engine. If it is a little high, try checking for vacuum leaks.
Idle is set by the computer.