The Chevrolet dealer analyzed the engine noise and thought it was the AC compressor bearing - after cutting the belt driving this compressor the noise remained. The next diagnosis from the Chevy dealer was that it might be a camshaft problem serious enough to warrant replacement of engine - their estimate was $8500 to replace. Another mechanic looked at the engine and agreed that the camshaft was making the noise - the estimate to replace the camshaft was $3100. After disassembly of the engine, he found that the camshaft had bowed and wore down the bearings enough to put metal shavings in the engine. He replaced the engine with a re-manufactured engine for a cost of approximately $6500 (parts and labor). My biggest complaint is that I had a 7 year , 100,000 mile warranty on this truck that expired in June, 2016 and the Chevrolet dealer would not consider sharing the cost of replacement. The 2009 Chevrolet Silverado 5.3L crew cab truck is now running great - no thanks to the Chevy dealer!
The Chevrolet dealer analyzed the engine noise and thought it was the AC compressor bearing - after cutting the belt driving this compressor the noise remained. The next diagnosis from the Chevy dealer was that it might be a camshaft problem serious enough to warrant replacement of engine - their estimate was $8500 to replace. Another mechanic looked at the engine and agreed that the camshaft was making the noise - the estimate to replace the camshaft was $3100. After disassembly of the engine, he found that the camshaft had bowed and wore down the bearings enough to put metal shavings in the engine. He replaced the engine with a re-manufactured engine for a cost of approximately $6500 (parts and labor). My biggest complaint is that I had a 7 year , 100,000 mile warranty on this truck that expired in June, 2016 and the Chevrolet dealer would not consider sharing the cost of replacement. The 2009 Chevrolet Silverado 5.3L crew cab truck is now running great - no thanks to the Chevy dealer!
- Steven R., Pickerington, OH, US