GM 6.0L V8 Engine Repair & Replacement
The 6.0L gas V8 is GM's workhorse for three-quarter and one-ton trucks and full-size vans, used for about two decades. It's a durable engine; most work we see is related to heavy loads, heat and high mileage. We repair and replace 6.0L engines for Phoenix-area work trucks and fleets.
Common applications
- Chevrolet Silverado and GMC Sierra 2500HD / 3500HD (gas)
- Chevrolet Express and GMC Savana 2500/3500
- Suburban and Yukon XL 2500 (select years)
Known problems and symptoms
Towing and hauling in Arizona heat stresses the cooling system.
Coils, plugs and wires on high-mileage work engines.
Rear main, oil pan and valve cover gaskets.
How we diagnose it
- Cooling system pressure and flow checks
- Misfire and fuel trim data
- Compression and leak-down
Repair and replacement options
- Cooling system repairs
- Cylinder head service
- Engine replacement for work trucks and fleets
GM 6.0L V8 repair topics
Testing-first diagnosis for GM 6.0L running, noise and warning-light problems.
Preventing and repairing heat damage on 6.0L work trucks.
Ignition and fuel misfires on the 6.0L.
How we decide between repairing, rebuilding or replacing a GM 6.0L with major internal damage.
Request a quote
Frequently asked questions
Do you work on fleet vans with the 6.0L?
Yes. We service Express and Savana vans along with HD pickups.