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GMC Rally Wagon 3500 Problems

Engine Misfire Due to Worn Valve Seat on GMC Rally Wagon 3500

Problem Description and Possible Solution

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.

(1 person reported this problem)

GMC Rally Wagon 3500 Vehicles With This Problem

RepairPal Verified
Average mileage: (–)
Engine affected: 5.7L V8
1 model year affected: 1996
Not Your GMC Rally Wagon 3500 Problem?
Brake problem? Or maybe a faulty head gasket cylinder?
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