Used 2011 Chevrolet Avalanche Crew Cab Consumer Reviews - 1 Car Reviews | Edmunds

2011 Chevrolet Avalanche Crew Cab - Consumer Reviews

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the Terrible 5.3L engine
1 of 1 people found this review helpful
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By D. R. Jared


2011 Chevrolet Avalanche Crew Cab LT 4dr Crew Cab SB (5.3L 8cyl 6A)


There have been complaints about the 5.3L engine since 2007, yet GM has done nothing about it. With only 62000 miles, I had to have $1100 worth of repairs to the engine, due to poor design. The engine had developed a solid engine 'miss', only 20,000 miles after purchasing the truck used. The independent mechanic shop had to look up the cause/effect/recommended repair on their independent web reference. The result: due to a design fault in the valve cover(s) , a replacement had been designed by GM that - supposedly - fixed the problem; oh, that and a premature tune-up, because the spark plugs had been completely gunked up with oil from the poor design. Now, only 20,000 miles later, the same problem has popped up again. A different repair shop described the same remedy as before! This shop owner said he LOVED this engine, as it earned him a lot of money! Personally, he owns a similar truck, but with the 6.0 L engine.

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