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GM Techs: 2016 5.3 liter AFM issues


Old 10-05-2017, 07:27 AM
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Join Date: Jun 2005
Location: Central IL
My Boat: Old/Heavy/Slow
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Originally Posted by Jupiter Sunsation View Post
Truck is done.....

Service writer was confused at best. I talked with the guy who did the work instead:
#4 lifter collapsed (google search called it correct as that is an issue on the 5.3)
Replaced all lifters (both on both sides), inspected pistons/wrist pins
Pulled oil pan, replaced oil pump, new oil/filter.

Mechanic said he hadn't seen one fail with so little miles (26K).

So now the question is, just pound miles on it or trade it before the warranty expires?
Inspected wrist pins?! Wife's '15 Subaru Legacy just had a short block put in at 33K miles due to excessive oil consumption (would use 1/2 quart oil to go to LOTO and back which is around 700 miles). She plans to keep running it. I was absolutely amazed that not one hose, wire, fastener, clip, etc. was out of place or missing afterwards and they had it done in 2 days flat. I guess if you do enough of them...

Anyway, as stated above I'd run it and then peddle it before powertrain warranty runs out.
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Old 10-05-2017, 10:28 AM
Join Date: Nov 2005
Location: Fredericksburg, Va
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parts can fail at any time on anything...
Wally and Wobble like this.
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