1994 Pontiac Firebird "gm rough idle" Questions

...rough idle every once in awhile...car seems to lunge forward when at a complete stop....power is down and car dogs it in first and second gear check converter is exhaust flowing okay? fuel filter ...

...rough and backfiring at times. I purchased this auto brand new and have maintained it very well. I would appreciate your help. Thank you. It would help to know what size your engine is and how many ...

...rough. Sometimes it will go dead after accelerating from a red light or stop sign. Gas mileage has always been terrible but is even worse now. The dealer has replaced the O2 sensor and throttle body ...

...rough at low idle replaced gas filter, fuel pump, vaccum hose. Still loping at low idle. Help!!! check for a leak at the intake manifold check out this website for any GM parts Schram auto and truck ...

...How to test TPS sensor on any GM throttle position sensor GM OBD Trouble Code 33 Rough idle MAP code 33 intermittent no start shorted injectors GM have code 33 have replaced the MAP sensor vacuum ...

...has new motor, air filter, plugs, but still idles, rough, smells of rich raw gas, and looses power going up hill. if GM vehicle code 12 press helpful button and check link below GM OBD Trouble Code ...

...Gm 454 - Carborated - running rich - idles a bit rough and stumbles upon throttle application Some time in the early eighties GM took away the ability to manually adjust the carburetor on passenger ...

gm 350 runs rough and back fires at idle after head replacment replaced cylinder heads on gm marine motor after rebuilding cant seem to get it to idle.needs a little gas to keep running surges and ...

rough idle just lower than it used to be. If the vehical had an idle adjusting screw thats all it would take because like I said its smooth.thanks IAC - idle air control valve problem maybe . Idle Air

...rough and when you step on gas it stalls I recommend checking the EGR valve first as GM cars and trucks of this era are famous for small ckunks of carbon getting lodged in the valve seat and holding ...