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2003 Chevrolet Silverado 2500 HD 6.6L Fuel
Posted to GM Engine on 5/22/2026 8 Replies

Afternoon all, here is my tale of woe.. Customer brought this clapped out 260k 2003 LB7 in for an exhaust leak under the hood. Turns out not an exhaust leak but compression/fuel leak. Found passenger forward cylinder injector copper crush seal had failed...

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  Related Documents & Media  2003 Chevrolet Silverado 2500 HD

 
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car Vehicle Data

2003 Chevrolet Silverado 2500 HD

VIN 1GCHK29173
Engine6.6 L / 8 cyl / DIESEL
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedFuel
Open Help Request

car Vehicle Data

2003 Chevrolet Silverado 2500 HD

VIN 1GCHK29173
Engine6.6 L / 8 cyl / DIESEL
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection
AffectedFuel