Questions & Answers for: Chevrolet runs rough

runs rough when running at 45 to 55 mph car out of cruise control flutters or runs rough from 45 mph to 55 mph and once over 55 mph runs smooth. I notice from 45 to 55 the rpm guage moves with flutter

runs rough at times Hard to start, have to floor it and when it starts runs rough for a mins then smooths out, run rough sometimes when driving around town Have someone turn the key on while you watch

runs rough, wont start at proper timing setting my 1992 (b4c) camaro runs rough, wont start at proper timing setting and wont run (when giving gas)if i advance timing to get it to start has new fuel ...

I have a 1999 s-10 little truck. 2.2 liter. I just replace the fuel injector for #1 cylinder. It started running really rough. then it would not start. after replacing the fuel injector. It is now ...

...runs rough,it will run for awhile but then will stall,it runs rough when you shake the car so i changed the fuel filter and pump still runs rough the OBD code is 66 what does that mean?? code 66 is ...

Rough running and missing Days ago, replaced plugs and plug wires due to rough running - at idle and high speed. It was smoother for an hour or so, but is back to rough running again. Any ...

runs rough 1997 c3500 7.4, I had two bad lifters so I changed all of them, after putting engine back together it started up but is running rough. I installed cap, rotor, plugs and wires but still runs

runs rough at idle but runs fine at higher rpm:s runs rough at idle speed ok at higher rpm"s wow a 99 an oldie but a goodie , one that old id be looking at all the vac lines , for pin holes,worn spots