I have a 1990 GMC S15 pickup and it seems to be in very good condition. I recently had the o2 censor replaced because i had a check ingine light that kept coming on and that did the trick. But now it seems to have a surge like quality to the idle when I'm sitting in traffic it shakes like its about to die and when I take off from a red light it chokes, it doesn't die but has the feeling that it will but when i get on the Hwy at higher speed it seems to be fine and run like a top but I am now more nervous when i have to slow down.So what is your best guess as to why this is happening and what should I do to fix it.
Sep 12, 2009 at 5:02 PM