1992 ssei supercharger problems - 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 03-03-2007, 02:25 AM   #1
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Default 1992 ssei supercharger problems

Anyone know why when i floor my 92 it falls flat on its face. Also when my boost gauge goes above midpoint the car shutters and feels like it is gonna fall apart. I've replaced the fuel pump, fuel filter and checked vac lines. Any ideas. It runs great otherwise, just frustrating i can't jump on it, have to be gradual to pick up speed. Also, really struggles climbing hills, temp really rises when up long hills. Appreciate any help.

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Old 03-03-2007, 09:52 AM   #2
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Default Re: 1992 ssei supercharger problems

Quote:
Originally Posted by triff
Anyone know why when i floor my 92 it falls flat on its face.
Typically, any car that falls flat on it'* face under acceleration is running too rich. Too lean is more of a raspy note to the exhaust with a lot of popping.

Best advice I can offer is to get a scan tool on the car and go see what is actually happening under hard accelleration as well as during the shuddering at mid range.

For the WOT testing, watch you MAF, KR, and O2 readings. For the shuddering, I guessing at a mis-fire in the ignition.
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Old 03-03-2007, 10:01 AM   #3
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plug and wires, cheap, and if you haven't done it, it needs them
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Old 03-03-2007, 01:56 PM   #4
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At that car'* age, the catalytic converter can be suspect as well.
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Old 03-03-2007, 02:16 PM   #5
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A bad or old O2 sensor will take out your catalytic converter over time. Just another possibility.

We're all guessing at this point until you get us more specific information.
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Old 03-03-2007, 03:18 PM   #6
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Has the fuel pressure regulator been tested?
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Old 03-04-2007, 10:27 AM   #7
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I've had at least 5 supercharger models in the 92-95 range and your symptom sounds exactly like when my mass air flow sensor was malfunctioning. You need to be VERY specific to which sensor you install. They all look the same but your 92 is pretty much specific to a 92 supercharged model. I ended up buying a new one from a local parts place and it fixed my problem. It was a very frustrating problem because I was chasing down a vacuum problem that I never had. If you know of another one you can interchange (borrow?) to see if it makes a difference, I'd do that first. Hope it helps! Chuck
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Old 03-04-2007, 11:07 AM   #8
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As Chuck eludes to here by mentioning the MAF and others mentioning a bunch of other stuff. We really need more information, a video or other symptoms to go on as well.

Any noise at idle?
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Old 03-07-2007, 12:01 AM   #9
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Default 1992 bonneville ssei

Thanks for the ideas all.
I have already replaced MAF. Will do a check on the computer next. I'll let you all know what I find this weekend.

Thanks again for the help all.

P.*. It runs like a raped ape when its cold.........
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Old 03-08-2007, 04:16 PM   #10
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Sounds like maybe plugs, wires, or a bad coil pack.
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