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Old 08-06-2022, 11:21 AM   #3
1976gmc20
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Join Date: May 2015
Location: Montana
Posts: 3,696
Re: 4.3 rebuilt engine for 2000 S/10

Quote:
Originally Posted by 1976gmc20 View Post
I'm going to call the shop myself in the morning!

It sounds to me more like a bad timing chain and sprockets, unless that has done more serious damage inside the engine.
The shop says that the crank bearings (and journals?) are worn out so that the crank is working back and forth longitudinally and causing the CPS to lose signal.

About $5700 parts and labor
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Current/past Chevy/GMC trucks:
1958 Chevy C-60; 1965 GMC C-50; 1965 Chevy C-10; 1971 Chevy K-10; 1973 Chevy K-20; 1976 GMC C-20; 1977 Chevy C-10 Suburban; 1980 Chevy K-10; 1989 Chevy K1500; 1991 GMC V1500 Suburban; 2016 Chevy K2500 HD

Other vehicles: 1988 Jeep XJ; 2011 Toyota 4Runner
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