Another update w/ pics - Horrible oil pressure - Page 3 - 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 11-09-2007, 10:49 PM   #21
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some of the 94-95'* with the L27 and 67 actually had some valve guide issues... But at the miles he has the heads may be due for an overhaul.... I would still like to see a Gage on it tho...

Generally cold start on an engine like that is 60 Psi.. I have seen these with oil pressure at 20-30 Psi at hot idle, 30 seems to be the usual... at road speed most will do 50-60 Psi..

But if the sending unit is bad it may not be telling you the truth either...

Mechanical gage will tell the truth

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Old 11-09-2007, 10:49 PM   #22
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hmm, it looks blueish too me too, and since it was in 7*C weather which is roughly 44*F... i wouldnt say that seeing the exhaust in that weather is that unusual...unless the smoke never goes away once warm and driven...i would take it for a spin and see what happens
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Old 11-09-2007, 10:53 PM   #23
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Point me to a mechanical gauge, please.

The smoke is at idle, and it cleared up when the engine warmed up. The car had not been started today, and it doesn't smell sweet. Actually, the car does smell sweet, but that'* because of air fresheners. The exhaust is what doesn't smell sweet.

I would so badly love to have high oil pressure. That would be awesome. My engine is evidently worn down, but to answer a question from way before that I haven't gotten to yet, it has indeed been rebuilt. The previous owner rebuilt the trans and the engine twice each, but not at the same time. The last rebuilds for the engine and trans were 110K miles and 40K miles ago, respectively.

Should I happen to have a mechanical gauge and it tells me the same thing as my dash, what am I to think of the constant 40psi except at a hod idle in D?
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Old 11-09-2007, 11:00 PM   #24
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so the smoke went away? thats good. did you happen to unplug the battery or anything? the odd smell from the exhaust could be because the engine had to relearn? maybe?

heres a mechanical oil gauge at autozone for $20.99
http://www.autozone.com/R,NONAPP3947...ductDetail.htm
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Old 11-09-2007, 11:04 PM   #25
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http://www.jcwhitney.com/Oil-Pressur.../600002118.jcw

Theres a bunch at JC Whitney
Parts Americas site list quite a few as well.
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Old 11-09-2007, 11:04 PM   #26
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Quote:
Originally Posted by GoldenBullet
so the smoke went away? thats good. did you happen to unplug the battery or anything? the odd smell from the exhaust could be because the engine had to relearn? maybe?

heres a mechanical oil gauge at autozone for $20.99
http://www.autozone.com/R,NONAPP3947...ductDetail.htm
That is probably exactly what happened, though the car had the whole day a while ago to relearn because I just this week on Monday had a battery/alternator total failure. It was all back in by Tuesday.

I'll see what else there is to check out, but I think this situation is pretty much cleared up until I do a compression test and an oil pressure test. Wish me luck.
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Old 11-09-2007, 11:16 PM   #27
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good luck

i think some things can take up to roughly 200 miles to complete the relearn
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Old 11-09-2007, 11:41 PM   #28
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Ignore My Check oil light... Its funky... First Vid of the 95.... 70-80 Psi cold start

91 Is always a 60 Psi cold start..



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Old 11-09-2007, 11:46 PM   #29
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Check your PCV valve.
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Old 11-10-2007, 12:11 AM   #30
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The PCV was changed about a year ago, but perhaps less. I'll see what a mechanical gauge shows, but all this high oil pressure talk is really strange to me.
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