1997 Oldsmobile Aurora "rough idle" Questions

...rough idle and usually codes P0171 & P0174. Spray carburetor cleaner around the throttle body with the engine idling. If the idle improves for a few seconds that's it. $30.00 and about 2 hours to ...

idle rough as well. If it is idling rough, you can spray carborator cleaner around the throttle body with the engine running and you should immediately notice a difference. The plenum gasket is about

...rough idle an surge? By what you are saying I would think its the idle control valve. Vacuum leaks also cause surge and idle issues. After 20 years, vacuum hoses can crack and leak. I'd check and ...

idle rough in park or at a stop light. The check engine light is on, i checked for codes at an O'Rileys and it didn't come up with anything. I've ran fuel additives threw it etc. nothing seems to help

...gap is .050" for factory plugs if it is a 3.5 liter the gap is also 050", this gap is for factory AC Delco plugs, I don't recommened any other brands due to rough idle problems with some of them. ...

Check for any Vacuum leaks. This can cause for engine to idle high or even rough. One other thing is a bad idol air control. Hope that helps. Go to your mechanic and have him do a computer code check

injector problem 4 litre eng. first time,started car, running rough excess fuel smoking out of exhaust,I replaced all eight inj. with rebuilds.Five of eight staying open,car would run with rail ...

...and when i started it the check engine light came on and started flashing and it was idleing very roughly, it was not doing this prior to changing the sparkplugs and boots does anyone have any ...

...MY FOOT ON THE GAS EVEN WHEN STOPPED Begin by checking for any ODB engine codes and go from there.(If this is a 4.0L, and the intake plenum has not been replaced, that can cause rough

...rough idle. I have already replaced both crank sensors, fuel filter and was looking at replacing oxygen sensors which cost roughly $300. Any ideas before I dump a ton of money into guessing what is ...