Vehicle report

1997 GMC C6H

Compare every GMC C6H yearNHTSA and EPA records

Service bulletins

3 bulletins

Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.

97110197037A

Service Bulletin/Repair Instructions

EXHIBITING A CONDITION IN WHICH LOOSE SPARK PLUG WIRES MAY CAUSE PREMATURE PISTON FAILURES DUE TO PRE-IGNITION SPARK PLUG FIRING. *YC

97110197037H

Service Bulletin/Repair Instructions

SUBJECT ON PREMATURE PISTON FAILURE. *YC

97090197037F

Service Bulletin/Repair Instructions

CONDITION IN WHICH LOOSE SPARK PLUG WIRES MAY CAUSE PREMATURE PISTON FAILURES DUE TO PRE-IGNITION SPARK PLUG FIRING. *YC

Reading this report

Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.