Something is very wrong.. - 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 05-16-2004, 03:35 PM   #1
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Default Something is very wrong..

Ok last night my friends and i were all driving back to his house after prom and stuff and we were goofing around a bit going a little fast and i was going pretty fast and i heard a small clunk like something fell and then it just started feeling wierd, and everytime i tried to get it over 80 it would just like stutter or i dont know how to explain it, so i just backed off, well i got hoem and both of my exhaust manifolds and the crossover pipe were Glowing bright red, i mean very very hot, i dont know whats wrong? Any ideas?
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Old 05-16-2004, 03:37 PM   #2
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was the engine temp high?

if not, i'd inspect the exhaust system for posible tubing damage or a clogged cat.
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Old 05-16-2004, 03:44 PM   #3
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Under prolonged high load situations, exhaust manifolds will glow. So that could be normal, if maybe a sign of a little exhaust restriction. The clunk I don't know about.
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Old 05-16-2004, 11:25 PM   #4
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I dont know how it could be a clogged cat i just had a brand new high performance cat put on there, and another thing, recently my cars been doing this wierd thing when i first drive it a few miles its ok when i mash it to the floor it goes, but after a bit it just like bogs down when i hit it, and it makes this wierd noise like i dont know how to explain it, i dont know if its the supercharge or the transmission but its like it sound almost like its going then slowing down then going then slowing down i really have no clue how to explain it.
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Old 05-16-2004, 11:31 PM   #5
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Drive it for a little while... if it starts to stall out in the wierdest places get a cam shaft position sensor... Sounds alot like what happend to mine a month ago...
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Old 05-16-2004, 11:36 PM   #6
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Stuipd question but any SES light?
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Old 05-16-2004, 11:55 PM   #7
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It doesnt stall and no SES light, i dont know whats going on i guess im just gonna get an engine rebuild cause its got 160k miles on it so it could use one. just gotta figure out a good price and stuff
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Old 05-16-2004, 11:59 PM   #8
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160 is just broken in.

TPS sensor, MAF sensor, PCV valve, Clogged cat (coulda been that noise you heard, big chunks of carbon fly out down the mani'* into the cat).'

Lotsa things, and all chepaer then a new engine. Could be tranny related. What'* your tranny fluid look like.
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Old 05-17-2004, 12:09 AM   #9
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its the cam sensor i had that prob on my 92 and replaced it in an hour
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Old 05-17-2004, 12:13 AM   #10
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Tranny fluid is all sorts of brown, very bad, and ive got a leak right now so im adding about a quart of fluid every week, getting that fixed monday when i get my check and im putting in this performance fluid so hopefully that helps a bit.
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