Supercharger doesn't pass 0, tranny problem - 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 03-15-2004, 11:38 AM   #1
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Default Supercharger doesn't pass 0, tranny problem

I have a 93 sse with the 3800, I have noticed lately that my supercharger needle never passes 0 on the gauge. It rises and drops, but never past 0. Also, my transmission shifts real hard between gears, this only hapens while accelerating. The harder I am on the gas the easier it shifts. Is there a possibility that one of my mounts is bad, I open the hood and shift between gears and the engine really jumps around. Any help would be appreciated.
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Old 03-15-2004, 02:55 PM   #2
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Do you have any codes stored?
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Old 03-15-2004, 05:11 PM   #3
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this is gonna sound stupid but, is there a serpentine belt going to the supercharger?....
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Old 03-15-2004, 05:20 PM   #4
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Look for a vacuum leak.
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Old 03-16-2004, 09:55 AM   #5
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Default Dead supercharger

There is a serpentine belt, I was thinking there was too much play and it was not getting the supercharger pulley to engauge. I'm pretty sure it'* just not working, it will jump from -10 to 0 and just stop there. I'm new and not quite sure what the "codes" are, if they are something that appear on the HUD, then there are no codes. Any help is appreciated, thanks in advance.
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Old 03-16-2004, 12:22 PM   #6
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Use the procedure in Techinfo to pull PCM codes. Get back to us with what you find.

I can almost gaurantee you the SC is working just fine. Or CAPABLE of working just fine. I haven't seen a SC cause a problem other than a little rattle at idle. EVER.
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Old 03-16-2004, 01:57 PM   #7
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Default Did my hoomework

OK, I shorted the A and B and got my diagnostic, when the ignition was turned to on with a&b shorted, the Service engine soon light blinked----five seconds----blink twice
It never flased any codes, but the engine light in the little above view stayed on the whole time, never going off. Any help, thanks

SC stumped in GB[/img]
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Old 03-16-2004, 02:14 PM   #8
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Are you saying it blinked once, then twice, and kept repeating that pattern?
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Old 03-16-2004, 02:15 PM   #9
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One blink, pause, two blinks is code 12, the diagnostic code. It basically means "anything that follows this is a stored error code." Ideally if you had any stored codes, the MIL light would flash 12, pause, flash an error code, pause, flash another error code, pause, ... until finally it finishes flashing all the stored codes, then will flash code 12 again to indicate it'* done.

So either you didn't wait long enough after the code 12 flash, or there weren't any stored codes.

At least, I'm pretty sure that'* how it works.

-b
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Old 03-16-2004, 02:28 PM   #10
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ok, I'll do it again, what is the mil light? I'll be right back
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