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2014 GMC Sierra 1500 Denali 6.2L Misfire
Posted to GM Driveability on 3/19/2019 21 Replies

have misfire [...] compression,ok 240 cranking,80 [...] vacuum [...] cylinder is not a adm dropping [...] valve cover,normal valve [...] intake to get at injector and [...] [...] to check noid but with all the stuff disconnected i get 2 flashes then [...]...

21 Replies Received (View Replies)

  Related Documents & Media  2014 GMC Sierra 1500 Denali

 
Message Closed w/FIX

car Vehicle Data

2014 GMC Sierra 1500 Denali

VIN 3GTU2VEJ4E
Engine6.2 L / 8 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2014 GMC Sierra 1500 Denali

VIN 3GTU2VEJ4E
Engine6.2 L / 8 cyl / GAS
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsMisfire
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected