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2001 Chevrolet Astro LS 4.3L Poor Idle Quality, Misfire, MIL Lamp on
Posted to GM Driveability on 12/6/2012 26 Replies

This post is for a friend. There is a misfire on cylinder #4 @ about 1500 r.p.m. & under a load. Cylinder #2 also has some misfires, but #4 is the greatest.

The problem was already there before any of the above work was done, but nothing seems to fix it. Look...

26 Replies Received (View Replies)

  Related Documents & Media  2001 Chevrolet Astro LS

 
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car Vehicle Data

2001 Chevrolet Astro LS

VIN 1GNDM19W81
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursUnder Load, on Accel

Trouble Codes

P0300Multiple Misfire Detected
Message Closed

car Vehicle Data

2001 Chevrolet Astro LS

VIN 1GNDM19W81
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, MIL Lamp On
OccursUnder Load, on Accel

Trouble Codes

P0300Multiple Misfire Detected