Why does your 2000 Pontiac Grand Am run rough at idle while in gear but runs smoothly if placed in neutral?
Why does my 2000 Pontiac Grand Am, with a 2.4L engine, run rough at idle but runs normally when placed in neutral? I changed the plugs and air filter, but the problem continues.
Could be your starter. See this write up I created when I replaced mine. http://hubpages.com/hub/Starter-Removal-1999-Pontiac-Grand-Prix.?Now bare in mind. It could be several things, from the starter, to the fuse, to the battery connections, as well as the neutral safety switch. What are the symptom's