What are the GM 6.6’s gas problems?
I’m looking at buying a Chevy Silverado, but I’ve heard there are some issues with its GM 6.6L engine. What exactly are the GM 6.6’s gas problems?
Answer provided by
Doing some research before you buy is always a good idea! Here are some common GM 6.6 gas problems:
- Knocking sound
- Random ticking noise
- Lifters and valve springs have failed
- Noise from valves
- Excessive gas use
That said, some of these problems have easy fixes if you’re comfortable working on cars. Otherwise, it may take a few trips to the mechanic to get your engine up to speed.
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