Lost Power - 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 11-08-2007, 02:42 PM   #1
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Yesterday I changed the oil in my 92 SSEi...Took it for a ride ...ran great...an hour later drove it 20 miles then I passed a car at 87mph...Now it lost all power at high speed!!!! Any Answers out there...Roy
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Old 11-08-2007, 04:49 PM   #2
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Hows the car running otherwise at idle and while driving normally?

What is the car doing when you try to reach high speeds?

Did you check to make sure you didnt throw a belt for the Supercharger?

We will need more info before anyone can really help diagnose the issue.
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Old 11-08-2007, 09:17 PM   #3
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also how is the oil pressure.?
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Old 11-09-2007, 02:38 AM   #4
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Is it just at high speeds or at higher RPMs? It could just be a dirty fuel filter and you just noticed it now. If you have never replaced it before you might as well, they are only like $12 and easy to replace.

Also tell us what your oil pressure is at.
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Old 11-09-2007, 03:25 AM   #5
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Black94ssei, the supercharger belt also runs the water pump. But I agree on the oil pressure. What is it at idle, wide-open throttle, regular driving, and coasting?
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Old 11-09-2007, 08:01 AM   #6
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Good Point. Ive heard that some try to run without the SC belt so I figured maybe I ask if it went. But i can see now where the Oil Pressure may be of concern.
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Old 11-09-2007, 09:24 AM   #7
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Quote:
Originally Posted by BLACK94SSEi
Good Point. Ive heard that some try to run without the SC belt so I figured maybe I ask if it went. But i can see now where the Oil Pressure may be of concern.
91-95 L67'* share a belt for the WP, AC, and SC.

96-2003 don't. They can run without the SC, while S1 (91-95 L67) can only do so for very short periods of time before kaboom, clatter, bang, thud.
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Old 11-09-2007, 10:54 AM   #8
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Thanks for that info. Im still learning allot about the differences between these engines.
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Old 11-09-2007, 11:08 AM   #9
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In the meantime, we still need for Roy to provide more information to go on. Otherwise it'* all guesswork and sheer luck. At this point we have no reason to believe or not believe that this is related to the oil change.
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