× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
2001 GMC Sierra 1500 SL 4.3L Misfire, MIL Lamp on
Posted to GM Driveability on 8/22/2014 13 Replies

hi every body, I have this gmc truck coming from other shop, they replaced all the parts mentioned before, misfire on cylinders 1 & 4 still present, checked compression on all cylinders, there are 145 psi on each, also run a leak down test, all cylinders are u...

13 Replies Received (View Replies)

  Related Documents & Media  2001 GMC Sierra 1500 SL

 
Message Closed w/FIX

car Vehicle Data

2001 GMC Sierra 1500 SL

VIN 1GTEC14W11
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursAlways, on Accel

Trouble Codes

P0300Multiple Misfire Detected
P0301Cylinder 1 Misfire Detected
P0304Cylinder 4 Misfire Detected
Message Closed w/FIX

car Vehicle Data

2001 GMC Sierra 1500 SL

VIN 1GTEC14W11
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursAlways, on Accel

Trouble Codes

P0300Multiple Misfire Detected
P0301Cylinder 1 Misfire Detected
P0304Cylinder 4 Misfire Detected