Engine shakes at idle.

2003 CHEVROLET VENTURE
18,000 MILES • 3.4L • 6 CYL
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MIKE HALLEY
  • MEMBER
  • 1 POST
Engine shakes at idle and when you accelerate it shakes if he is off the accelerator it seems to clear out a little bit a friend of mine put it on his handheld computer and it said that the fuel pedal positioning sensor had a weak signal and was misfiring on all six cylinders
Dec 16, 2017 at 2:48 AM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
GOOD MORNING MY NAME IS ROY AND I WILL ASSIST

THE FIRST THING I WOULD DO IS CHECK THE PLUGS, WHILE THEY ARE OUT, DO A COMPRESSION TEST TO VERIFY NO INTERNAL DAMAGE TO THE MOTOR.
CHECK ALSO FOR SPARK TO ALL CYLINDERS. COMMON FOR COIL FAILURES AND MODULE FAILURES AS WELL.
I WOULD START THEE AND REPORT BACK WITH YOUR RESULTS

ROY
Dec 16, 2017 at 2:44 PM
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