× 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
2002 Chevrolet Trailblazer LS 4.2L Misfire
Posted to GM Driveability on 4/27/2020 24 Replies

I have switched coils and plugs, smoke tested for vacuum leaks, done a compression test running and cranking, spark jumps 25kv and have not had any luck so far. I checked the injectors with my power probe 4 at the pcm and they all give the same readings. I...

24 Replies Received (View Replies)

  Related Documents & Media  2002 Chevrolet Trailblazer LS

 
Message Closed w/FIX

car Vehicle Data

2002 Chevrolet Trailblazer LS

VIN 1GNDS13S62
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursHot

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2002 Chevrolet Trailblazer LS

VIN 1GNDS13S62
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / SEFI
EmissionsOBD-II Compliant
SymptomsMisfire
OccursHot

Trouble Codes

P0300Multiple Misfire Detected