1994 Chevy Corsica 6 cyl Two Wheel Drive Automatic 200220 miles
If lucky enough to get back up to speed, OK again until next stop light. Stop at a store, will not start until cooled down. When trying to restart warm, back kick will actually stop the starter rotation momentarily, and puff of smoke will shoot out somewhere over the intake manifold. Service engine light not on. Replaced cam position sensor, no joy. Disconnected knock sensor, car ran fine for a while again until hot, same problem. Something is getting heat sensitive and keeping the spark advanced for cruising speeds at idle/start? Does TPS advance spark? Shop manual shows " ignition timer sensor" but parts stores don't show it. I can swap out my ICM with my 2002 Buick Century (same Part # !) But I don't think that is it.
Saturday, April 25th, 2009 AT 9:11 PM