Wiring issue: headlights dimming, blinkers slowing down... - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 02-17-2013, 08:47 PM   #11
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Quote:
Originally Posted by imidazol97 View Post
I've noticed this on my 98, and occasionally on my 03 I feel a chugging as if the high load might cause the belt to slip at idle. The 03 has a belt that doesn't seem rubbery like the original and might not give a squeak as it slips but might do it quietly due to the texture.

I was wondering if age causes the idler tensioner to lose pressure against the belt. That means under high load with the alternator working hard to produce amperage, the belt may be slipping.

I'd try turning everything on right after the car has sat and then spraying water onto the belt in front of the alternator to see if you get a slip at idle.
Thanks for the reply! I have actually replaced that tensioner about 5000 miles ago because the old one had gone haywire. I also got rid of the stupid plastic pulley on it and used a supercharger one. Direct fit, same size. I worked for GM at the time and verified it all. But thanks for the idea!
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