It started with a timing chain.... - Page 7 - 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 03-04-2005, 11:10 AM   #61
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Cleaned that up, Runs a ******** better. Still a little cough from idle to WOT, How bad does 10psi low fp make you run? I think that may be all that'* left.
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Old 03-04-2005, 12:03 PM   #62
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10 psi lower then the low end of the scale?

I think you should fall in the 41-47 psi range... Are you running 31 psi....?

My car runs at about 41-46 when I should do 48-55 psi... I know I'll need a fuel pump replacement soon.. Thank god I already have one waiting..

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Old 03-04-2005, 01:31 PM   #63
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That was a good call Justin....

Dame, sounds like maybe a new fuel pump is in order. 10psi low fuel pressure sounds like it would cause a cough going from idle to WOT. This is a silly question, but your fuel filter is in good shape, no?
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Old 03-04-2005, 01:53 PM   #64
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Quote:
Originally Posted by big_news_1
That was a good call Justin....
Damned good one I got ahold of that machinist Justin, We're hashing things to get your heads ready to bolt in.
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Old 03-04-2005, 01:54 PM   #65
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Dame what exactly is your fuel pressure with the key on, and then with the engine running? Also what does the fuel pressure gage do when you tip in the throttle?

41-47 psi is good, but if you are falling way short then that pump you thought was weak may be showing signs...

Even my 91 runs above 40psi... lol

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Old 03-04-2005, 01:55 PM   #66
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34psi at idle, bumps to high 30'*....

Think maybe it'* a dirty in-tank screen since the pump tested at 85+ psi on the bench months ago?
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Old 03-05-2005, 03:33 AM   #67
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So, Sounds like fuel has it held back.

Tonight on cold start it loped like it had 180* overlap, But settled into a slight lope nicely. Low/Mid power is gone until it runs for a bit and High power is just gone. Sounds like a pump/screen eh? God this car never goes right...
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Old 03-05-2005, 04:41 AM   #68
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You're getting closer though.... I feel you've almost reached the light at the end of the tunnel. Keep at it!
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Old 03-09-2005, 03:16 AM   #69
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Noticed a beeping going along with my music tonight, Looked at the guages and the alt was in the red. Pop the hood, Bolt the positive cable back in. Runs better. I think this is about 400 little things.
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Old 03-09-2005, 05:17 AM   #70
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Quote:
Originally Posted by Damemorder
Noticed a beeping going along with my music tonight, Looked at the guages and the alt was in the red. Pop the hood, Bolt the positive cable back in. Runs better. I think this is about 400 little things.
that results to one big thing
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