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5.3L misfire/compression erratic
Posted to Technical Discussion Forum on 5/31/2016 18 Replies

Evening everyone,

We have been chasing an intermittent runs rough/misfire issue with this 5.3 for awhile now. It would never act up for us, but always had a ton of misfires on #7. We have done new plugs and coil swapping, etc, and FINALLY it came in running ... Login to read more.

18 Replies Received (View Replies)

 

car Vehicle Data

2007 Buick Rainier CXL 5.3L

Engine5.3 L
Trans4-speed Automatic (Electronic)

car Vehicle Data

2007 Buick Rainier CXL 5.3L

Engine5.3 L
Trans4-speed Automatic (Electronic)