1991 Chevrolet Caprice "rough idle wont stay running" Questions

...rough idle at first....I am getting black soot out of both tailpipes...now i did just replace everything on this car, map sensor, wires, plugs, air flow sensor, ing. module, coil, ...the car is ...

...idle. I could smell raw gas and it was running rough. I turned it off and tried starting it again. This time it seemed to run almost normally, so I cut it off again. This time when I tried restarting ...

...rough idle then dies wont stay running Trying to figure out why it is idling rough and barely running then stalls, have checked the Crankshaft positioning sensor, nothing helps not throwing codes. ck ...

...new fuel filter, Cleaned tank! new plugs, wires, cap rotor & coil. Starts, Idles rough runs good at high RPM but wont stay there for long then finaly dies. you check for miss how is ...

...system cleaning). second, while running and running in idle, is the idle varying (continually reving up and down), rough, low or none of the above? answer back and i can help out a little

...if you keep the rpm`s up but at idle wants to surge and stall. any help on this. thanks Bill wont stay running after it warms up not overheating runs rough is it carb, or efi ? and what size

...rough idles very high in park and has no power and wont stay running Check all vacuum lines for leaks. Check spark plug wires for and spark plugs that may be worn and causing idle misfire.also check ...

...idle and runs rough. no power could be many things,but i'd check airflow meter first,then fuel pressure and volume Check your throttle body bore and plate for black carbon buildup . Also check the ...

...rough idle. When driving the motor will sometimes backfire and cut out. After about 1 mile or so of driving the problem goes away. When the motor is again started ,hot or cold the rough idle problem ...

...rough and stalls when take foot off gas This could be he Idle Control Valve and is around 50 dollars and a easy fix. Also try STP 5 in 1 fuel cleaner for a couple of tanks if you are using the cheap ...