Worn Valve Seats May Cause Engine Misfire: GMC V3500 Engine & Powertrain

Problem overview

The engine may develop a misfire due to worn valve seats. This fault will cause the Check Engine Light to illuminate. Our technicians tell us the misfire may or may not be felt while driving. They further recommend that both cylinder heads be removed and thoroughly inspected and repaired as necessary.

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GMC V3500 vehicles with this problem

4 model years affected

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Worn Valve Seats May Cause Engine Misfire on GMC V3500

Problem overview

GMC V3500 vehicles with this problem

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