misfire/error codes on cylinders

By kjw
March 4, 2014 in Troubleshooting & Recalls

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kjw

Posted March 4, 2014

Just took my 2014 gmc AT in for the 3rd time for misfires in cylinder 8. Only happends when you put lots of load on the engine. E.g.: when I put it to the the floor at 130km. Anyone else have any issues like this. Runs fine at lower speeds. Only have 9300km on the truck.

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