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2008 Chevrolet Suburban 2500 LT 6.0L Misfire
Posted to GM Driveability on 7/30/2009 11 Replies

This 08 Suburban has misfire counts on cyl #4 only at idle. Smoked intake - no leaks. Tried new plug and ignition coil with no difference. Swapped injectors and plug wires between cylinders and still cylinder #4 misfires at idle.

Any ideas?

FIX posted 8/28/2009

11 Replies Received (View Replies)

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car Vehicle Data

2008 Chevrolet Suburban 2500 LT

Engine6.0 L / 8 cyl / GAS
Trans6-speed Automatic (Electronic)
EmissionsOBD-II Compliant

Trouble Codes

P0304Cylinder 4 Misfire Detected