squeak, smoke, pop - Page 10 - 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 08-20-2007, 01:51 AM   #91
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(I didn't think anybody would still be up and so I was all primed to post this just as I saw your last post, Bill. But here'* some info anyway)

Yes, that seems to be the case. I checked our '98 and there'* no modulator, but a big grey one in our '94 as willwren mentions along with his nice pic in this thread:

http://www.bonnevilleclub.com/forum/...sion+modulator

Antonio, you might as well look for it anyway. Who knows what anybody'* done with your engine and transmission?

Bill '* suggestion started me thinking, though, about other possibilities down below. You mentioned that it smoked worse after your accident, and that the oil pressure was looking squirrelly. I don't know what your accident entailed, but if you went off road, you may have hit a curb, a rock, a sign post, etc. Have you looked underneath to see if you might have creased or dented your oil pan (or transmission pan)? I've only had the top part of our '98 open, so I don't know what it looks like exactly inside the oil pan, but could you have damaged an oil sump? Or kinked an oil line inside, or even gave the oil pump a damaging jarring?

Your squirrelly oil pressure bothers me. It'* probably just a clogged or stuck sender, but what if it isn't? The high indicated pressure might mean something'* getting blocked or pinched off from getting oil, just as I was alluding to above. If that "something" is ultimately rings, then they are going to get gummed up and let oil past them until maybe they get ungummed (or not).

Well, this is just another of a zillion possibilities -- something to think about.
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Old 08-20-2007, 03:45 AM   #92
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i hit a curb but it was rear damage, front never hit anything
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Old 08-20-2007, 09:40 AM   #93
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If the oil pan were to get dented.. it might push up on the pick up.. otherwise the pump is part of the timing cover.

In my experience a head gasket always leaks coolant and not oil. This is because in the head the coolant is pressurized at ~16psi and the oil is not. Oil is only dripping back through the returns to the pan. There can be oil getting pulled into a cylinder...but the chances are slim.

If oil is getting into the cylinders, it is most likely either piston rings or valve seals. Both are pretty uncommon on the 3800 as a norm, however with a hydrolocking event it is possible the rings suffered damage.
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Old 08-20-2007, 11:48 AM   #94
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Quote:
Originally Posted by BillBoost37
with a hydrolocking event it is possible the rings suffered damage.
Yes. Years ago I had a non-Bonneville engine that burst a head gasket, and I didn't get to it fast enough (dead of winter, outside in the Michigan woods). Not quite a hydrolock, but plenty of coolant got into the cylinders. The cylinder walls suffered a little surface rust (polished off though), but the the reassembled engine always ran as if there had been some ring damage.

(edited by me -- just as Boosty says below, 2 or 3 of my plugs were always a little black and oily. Didn't help so much on a straight 6 Jeep engine, but on the v6 you may be able to narrow it down to one bank, of course. The Jeep was becoming somewhat of a beater so I didn't proceed much further, but even a beater (with good tires) is great in one foot snowfalls if it'* a Jeep 4x4 beater.

For what it'* worth, I got it back to 95% or better by going to Mobil 1, and using an occasional treatment of the real expensive Valvoline fuel additive (the $10 stuff). You could watch the plugs get clearer with time, as the engine continued to run smoother. (Other than a rare thing like that though, I'm not an additive freak. Preventative maintenance is better)

But I'm not suggesting that'* what you should do, Antonio, your problem is more serious and needs some kind of mechanical attention. Just do exactly as Boosty says .)
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Old 08-20-2007, 11:50 AM   #95
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Reading the plugs should tell you which cylinder (If only one) is burning oil. Then you could do a compression check etc to see if the issue is a valve seal on the new head or something else.

It'* possible that the valve seal on the new head let go and it'* an easy enough fix.
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Old 08-20-2007, 01:53 PM   #96
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How would I go about reading the plugs?
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Old 08-20-2007, 02:34 PM   #97
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Google "reading spark plugs" choose one of the better articles and pull your plugs one by one to read what is going on with them.
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Old 08-20-2007, 03:17 PM   #98
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o ok I know what you are talking about, I will have to get out there and check so see whats going on, I will post with updates
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Old 08-20-2007, 04:27 PM   #99
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Well I just came back from checking my plugs and all are reading normal. Where do I go from here?
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Old 08-21-2007, 02:52 PM   #100
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Where should I go from here to get the smoking away, im tired of it its embarrasing.
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