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2007 GMC Sierra 1500 SLE 5.3L Backfire
Posted to GM Driveability on 5/1/2019 16 Replies

I'm having problems with my own truck. Very occasional backfire when cold. It will only do it for the first minute or two after start-up. It will backfire 1, 2 or 3 times, then be fine for the rest of the day. It sounds like it's backfiring through the int...

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  Related Documents & Media  2007 GMC Sierra 1500 SLE

 
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car Vehicle Data

2007 GMC Sierra 1500 SLE

VIN 2GTEK13M97
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsBackfire
OccursCold, Intermittently
Message Closed

car Vehicle Data

2007 GMC Sierra 1500 SLE

VIN 2GTEK13M97
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsBackfire
OccursCold, Intermittently