NO POWER, Red hot exhaust mainfolds, NOT CLOGGED EXHAUST - GM Forum - Buick, Cadillac, 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.

NO POWER, Red hot exhaust mainfolds, NOT CLOGGED EXHAUST

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Old 11-30-2007, 07:57 AM
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Default NO POWER, Red hot exhaust mainfolds, NOT CLOGGED EXHAUST

1994 3800 SUPERCHARGED, close to 200,000 miles.

Started to loose power, now can't even drive onto lift, has more power at idle than pushing on gas.

Even at idle, exhaust manifolds start getting hot, and after just a couple of minutes are glowing red hot.

Had muffler shop go to replace the CAT but even with CAT cut-off the exhaust still had problem (also VERY loud!, ha, ha)

NO mods to supercharger or engine, everything is OE.

HELP!
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Old 11-30-2007, 09:32 AM
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Check your fuel pressure.
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