Check your engine thermostat, it maybe stuck open, keeping the engine from dropping off high idle
zyou tps might be bad
throttle posistion sensor or vacuum leak
were is my 1999 pontiac grand am map sensor location
Pontiac Montana was created in 1999.
how much to insall a ignition to a pontiac grand am se 1999?
how to remove a engine in a 1999 Pontiac grand prix 3.8L
need to know where the water pump in at on a 1999 Pontiac grand am
Answering "1999 Pontiac Bonneville fuel shut off switch?"
What is the firing order for a 1999 Pontiac sunfire 2.2L 4cyl Engine?
My 1999 Pontiac Grand Am has over 180k
With a key.
Yes they have them.