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Author Topic: Blown engine  (Read 225 times, 5 Replies)
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Nvr2loud
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« on: April 20, 2017, 11:11:42 AM »

Some of you might recall, that at approximately 100,000 miles I got a check engine light on my 2012 Acadia.

My code reader stated "Camshaft / Crankshaft correlation error" and we were also getting a bad hesitation / shake / misfire type feeling when under light throttle and heavy load (uphill, moving forward from a stop) that disappeared under heavy throttle.

Took the Acadia to the dealership, was diagnosed with stretched timing chain. We repaired at a cost of $3200.00 and traded the Acadia in three months later. The initial hesitation we complained about did not get any better after the repair.

The service tech, who diagnosed and replaced our timing chains, took our Acadia home to show his wife. They were planning to purchase it from the dealership due to the overall great condition of it. He put approximately 50 miles on it before blowing the engine. The crankshaft bearing came apart.
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« Reply #1 on: April 20, 2017, 11:22:51 AM »

That was lucky for you. Are you Irish?  Grin Grin Grin
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« Reply #2 on: April 20, 2017, 11:31:25 AM »

That was lucky for you. Are you Irish?  Grin Grin Grin

I am.  thumbs up Grin
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« Reply #3 on: April 20, 2017, 01:27:30 PM »

wow!
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« Reply #4 on: April 20, 2017, 02:06:43 PM »

I think that it was misdiagnosed, maybe the bearing was the initial issue.

or

Maybe the repair resulted in debris making it into the bearing, or it becoming misaligned....
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« Reply #5 on: April 22, 2017, 03:42:52 PM »

Is $3,200 the going price for replacing a timing chain?   That seems excessive to me.

George
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