1995 GMC C1500 timing

1995 GMC C1500
103,000 MILES • V8 • 2WD • AUTOMATIC
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BOBD
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As you can see I have a 1995 GMC Sierra with a 5.7l engine in it. Over Christmas I had to put a reman engine into the truck. It's a Jasper engine. I disconnect the brown timing lead and set the timing to -0- like the truck says. I also reset the codes like the truck says also. when I get back from a test drive The timing is retarded again. Probably 8 to 10 degrees. Is this normal?
Jan 26, 2008 at 3:23 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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RASMATAZ
  • AUTOMOTIVE REPAIR CONTRIBUTOR
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Mr. Bob Lets try for a starter the knock sensor it might be holding back on you retarding the timing when there's No pinging -its located on lower right front of engine under the exhaust manifold. If the KS checks out Have the EST/ESC tested. See position J in the illustration below


https://images.2carpros.com/forum/automotive_pictures/12900_ks_2.jpg

Thanks for the donation-more help needed come on back
Jan 26, 2008 at 3:44 PM
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