1990 Buick Regal Q&A
1990 Buick Regal Question: very high idle
there is an idle air control IAC and a throttle position sensor TPS - cogcan
leaks coolant from intake manifold seems to stop when car is hot.but idle problem still there sometimes when hot or cold. could leaking manifold be the problem. after driving on highway about 30 mi...
already replaced idle control valve and it still not idling correctly
everytime i start my buick it idles very high and when i hit the gas it dies. why is it doing this? fuel regulator maybe?