ENGINE RUNS ROUGH

Truck Listed Above Has A 2.5 L 4 Cylinder With 8 Spark Plugs, 2 Coil Packs, Etc. The Engine Seems To Run Rough. Not Missing, No Check...

My 1987 Pontiac Fiero Coupe W/2.5 Tech 4 W/ Electronic Ignition W/automatic W/ 87,000 On Rebuilt Motor, Just Started Running Really Bad And...

I Have Been Having Problem From Day 1 Got The Car For $150.00 With 55,000 Miles But Can't Seem To Find Out The Problem. It'll Start...

15 Miles On Rebuilt Engine New Temp Sensor Replaced Twice New Map Sensor New Tps New Upstream O2s New Thermostat

After Approx. 30 Mins Of Driving My Car Begins To Run Rough But Only When I'm Stopped. It Also Makes A Rattling Noise. Check Engine Light Is...

If I Have The Crankshaft Sensor In The Position It Is Supposed To Be In It Runs Terrible And The Efi Carburetor Thingy Whatever It Is Called...

The Vehicle Was Running Fine Until Yesterday When I Started It Up And It Was Running Rough. When I Drive, It Produces Excessive Exhaust And...

1990 Mercury Grand Marquis. Runs Rough And Shakes When Car Is Warm Especially Going Up Hills. Put On New Distributor Car Was Worse. Only...

Car Cranks Up Fine Cold After Five To Ten Miles Runs Rough And Stalls. If I Take Battery Cable Off And Put Back On The Car Starts. I Have...

Im Working On A Ford Focus Vin 3 Motor, I Did A Tuneup Changed Plugs Wires Air Filter Cleaned Throttlebody Maf And Installed A New Iac The...