It started with a timing chain.... - Page 8 - 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 04-25-2005, 02:05 AM   #71
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AH HA! Found my spare MAF while moving stuff over to the new house. Put it in on a whim, car runs 75% better.

Now the only things it does are:

Weird whining noise... Imagine the SC noise of Bill orJasons' car... on my L27. I think it'* near the drivers' side. Happens exactly when an SC makes its' noise.

Little hesitation.

misfire/detonation/something still present. Very bad around 1500-2000 RPM.

PS Pump wobbles.


I think it needs a PS Pump, Fuel Pump, LH rear tranny mount, and maybe a drivers' CV. Thoughts?
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Old 04-25-2005, 03:08 AM   #72
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UR PS pump can whine, lord knows mine does.

Fuel pump? Maybe. Wasn't it testing different from bench?

I do get a weird high pitched noise when she'* warmed up at lower speeds under acceleration.
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Old 04-25-2005, 12:07 PM   #73
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Quote:
Originally Posted by BonneMeMN
UR PS pump can whine, lord knows mine does.

Fuel pump? Maybe. Wasn't it testing different from bench?

I do get a weird high pitched noise when she'* warmed up at lower speeds under acceleration.
Same here... I have the same high pitch sound...

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Old 04-30-2005, 07:13 PM   #74
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Had a lot of running today so I did some scan tool readings. She idles at 10* spark advance, hits 20* as soon as I touch the gas, and 35-40* if I romp it.
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Old 05-01-2005, 12:32 AM   #75
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I changed the fuel pump this evening. high 38'* at idle to mid 40'* at WOT bump. ACDelco pump.

Have to let it settle in for a bit.

TPS: .51v - 4.37v very smoothly
Recent Codes: QDM A (because of WillCool), DTC 39 (TCC not engaging).
Current Codes: None.
Current Condition: rough idle, bogging/knocking from 2000-2500, no power.
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Old 05-01-2005, 11:50 AM   #76
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You car is testing the Hell out of you....

<----- stumped...

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Old 05-01-2005, 02:34 PM   #77
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Uhh, injectors, big ginormo vacum leak, sensor of some sort...

I dunno dude.
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Old 05-01-2005, 06:24 PM   #78
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19Hg of vacuum today.
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Old 05-01-2005, 06:43 PM   #79
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This is everything I've tried.... Got other ideas? I'm pricing a new set of injectors.

Camshaft Position Sensor
Camshaft Interrupter-Magnet
Crankshaft Position Sensor
Timing Set
Timing Cover Gasket Set
Oil Pan Gasket Set
Timing Damper
Antifreeze
Two Coils (Used)
Both coolant sensors
Spark plugs and wires
Repaired UIM
New Injector O-Rings
New Fuel Filter
Cleaned ICM Ground
Cleaned battery connections
Used MAF
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Old 05-01-2005, 06:46 PM   #80
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What year is the MAF from?
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