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GM 4.8, 5.4, 6.0 Natural gas valvetrain failures
Posted to Technical Discussion Forum on 1/15/2006 6 Replies

We've noticed a reoccurring problem here with some of our vehicles which I'll post for future reference.

It seems some of our GM 4.8, 5.4 and 6.0L powered vehicles with aftermarket natural gas fuel conversions are having a tendency to pound the intake valves... Login to read more.

6 Replies Received (View Replies)