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2003 Chevrolet Trailblazer North Face 4.2L #4 Exhaust Valve
Posted to GM Engine on 5/9/2012 12 Replies

This is the second time in six thousand miles since the original repair and the number 4 exhaust valve is burned out again. Any ideas besides a bad guide (replaced twice), bad valve (replaced twice). I am thinking it has to be in the camshaft. Your thoughts??

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car Vehicle Data

2003 Chevrolet Trailblazer North Face

VIN 1GNET16S43
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
Affected#4 Exhaust Valve
Message Closed

car Vehicle Data

2003 Chevrolet Trailblazer North Face

VIN 1GNET16S43
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
Affected#4 Exhaust Valve