1995 Chevy Lumina Rough Idling

Tiny
EFDFIRE07
  • MEMBER
  • 1995 CHEVROLET LUMINA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 10,600 MILES
I recenlty bought a 1995 Chevy Lumina. I noticed that when I'm driving, I can sometimes feel the engine hesitate. When I'm not moving, the engine will idle alright, but then the engine starts idling rough and it will sputter but then go back to normal idling condition. It will continue to do this. The vehicle shifts fine. I also noticed that it will only do this when the vehicle is in drive. It will not do this when in park or in the nutruel position. Any thoughts to what might be the problem. I already changed the fuel filter. Thanks
Friday, September 5th, 2008 AT 1:35 AM

1 Reply

Tiny
RENAUDTN
  • MECHANIC
  • 636 POSTS
First check for DTCs and check your sensors readings in the PCM.

Is your engine hesitating or is it misfiring?

You could have:

Dirty fuel injectors
Bad throttle position sensor
Bad or dirty MAF sensor
Low fuel pressure
Vacuum leaks
Dirty or worn spark plugs
Bad plug wires
Weak ignition coil
leaky EGR valve
leaky PCV valve
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Monday, September 8th, 2008 AT 2:44 PM

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