gas in oil/oil in pcv valve - 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 08-09-2006, 11:04 PM   #1
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Default gas in oil/oil in pcv valve

Well this past weekend I had planned to work on the car but things didnt work out so well and I ended up going out of town. But today I was goin to work and had a bit of a hard time starting the car. Took 2 tries to get it started and after it did start, it tried to stall but a bit of gas and the car worked all right. I had pretty much the same problem from leavin work a while ago and the car is now cool enough to work on. First off I checked the fluids and all is well cept the motor oil. Its kinda dark and smells like gas. I went ahead and checked the pcv valve and its covered in oil. Im gonna drain the oil as soon as I hit the submit button and go to Autozone to get some oil, a filter, and a pcv valve and wait to see what yall say. Im hopin maybe this is something that is a fairly cheap fix and something that yall will know how to fix. One guy I know said to check my piston rings but I thought if those were gone the car would smoke like hell. The car isnt burning oil though, the level is exactly were I had filled it up to when I changed the oil about a month ago. Sorry bout the long post and posting problems every other day and not helping anybody with theirs, but yall seem to know just about everything when it comes to these cars and the mechanics down here seem to know jack...

Thanks for any help yall can give me.

Sam
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Old 08-09-2006, 11:12 PM   #2
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It is normal for the PCV to have oil on it as it is allowing excess pressure from your crank case to move into your intake. I would reccomend a compression test on your cyclinders. When was the last good tune up on your motor? I'm sure others will chime in soon.

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Old 08-09-2006, 11:16 PM   #3
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After a drive, check the vacuum line to your fuel pressure regulator and see if you can detect a gas odor or fluid. If so, replace the FPR.
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Old 08-09-2006, 11:44 PM   #4
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First off thanks for your quick replies!

Ok, I did some more checking and there is no O ring on the pcv.

I was planning to do a semi good tune up on the engine this weekend. plugs, wires, oil/filter, fuel filter, air filter, adjusting the tps (giving me a ses code when idle goes away at WOT), 180* tstat, tranny fluid/filter change, checking my vac lines again to make sure they are all still good, flushing the radiator, and cleaning the engine pretty well. The maid reason for some of that is cause its been a while since any of it has been done and I was gonna do a seafoam treatment (through the vac line).

I just took the car for a quick spin and the vac line at the fpr smells like gas and leaked a little when I took it off.

So it looks like Im gonna be riding my 750 to work and this weekend Im gonna add pcv and fpr to the list of things to fix and Im thinking of holding off on the seafoam till a later date. Depending on money and time off of work, Im thinking of rebulding my engine and finding a place that does good tranny work around here though I doubt Ill find a place.
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Old 08-10-2006, 08:39 AM   #5
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Rebuild at 116K? Oh gosh no

Replace the FPR, get that o ring on the pcv and you should be running again.
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Old 08-10-2006, 11:15 AM   #6
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Yeah the whole rebuild thing is more something I would like to do just to learn more about the car, it doesnt really need it. The tranny needs some work but its still goin good.

I was searchin through the forum lasnight before I went to bed and maybe its cause I was tired or maybe I was just reading things wrong, but my PCV has a spring on it and from what I read the 92 se doesnt come with a spring. Since it was there to begin with, Im gonna leave it on after I put the o ring on it but I was kinda puzzled by it.

What else can I do this weekend when doing that tune up I had mentioned in one of the previous post? McGrath said a compression check but isnt that more just a part of trouble shooting? Im gonna do one anyways seein as how since Ive had the car (4 years) its never been done. I replaced the radiator hoses about 5 months ago cause one of them started to crack and decided to do both of em at the same time. The serpentine belt was done about a year ago and shows no signs of cracking or spliting anywhere so I think Im good with that.

Any comments or advice is appreciated.

And Im sure yall hear this alot, but you guys really are the best and I thank yall for helpin me out all the time. BTW Willwren, I was on your website lastnight and your car is the coolest bonneville Ive seen.

Sam
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Old 08-10-2006, 01:03 PM   #7
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Sam, I'm not sure if an SE should have a spring or not. Do you have the aluminum upper intake, or plastic? Maybe we can get a couple L27 gurus to chime in on that. I know my cars both have springs.

I agree that the PCV and FPR should fix you up just fine. Be warned that you'll need some patience to get that FPR out of the fuel rail. They can be tough. And it'll help if you put a little vaseline on the o-rings of the new FPR before you try to put it back in.

And thanks for the compliments, but my website is SEVERELY out of date. I don't even think I have both Bonnevilles on it.
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Old 08-10-2006, 11:39 PM   #8
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Well I found out by checkin the pcv valve on a friends buick that it does indeed have a spring on the l27 engine. Depending on when I get out of work tomorrow night, Im gonna go get the parts to do that tune up and will replace everything on Saturday mornin when I wake up. Thanks for the tip on the fpr Will. Ill be sure to post back on how things went some time saturday afternoon or sunday.

Thanks again for yalls help.

Sam
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Old 08-15-2006, 08:54 PM   #9
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Well I finally got finished with all the stuff I was gonna do. Took me a while as time is not always on my side. But there is a new PVC valve, FPR, fuel filter, oil/filter, plugs, wires, TPS is now adjusted to the right voltages, 180* tstat, and fresh coolant and water.

I reset the computer and all is well, no ses codes! I also did the learning procedure and let teh PCM adjust itself to the TPS voltages and everything. Car started up well and it shakes like crazy! It was enough to screw up the passenger side motor mount so Im gonna replace that before I even think about drivin the car.

The only problem is the RPMs dont rise over 3K. I press on the gas and it seems to limit itself at 3K even when floored (all the while shakin like crazy). All the vac lines are connected right and secure but the PCV valve didnt come with and o ring and the people at advance, autozone, or napa had a part number or anything for it. The guy at advance gave me a gromet that is way to big to fit in the hole the valve goes into, so Im kinda at a loss for that.

The plugs are the TR-55
Belden wires
Mobile 1 oil
Purolator filter

The rest of the stuff is whatever brand autozone had in stock so I didnt really have a choice on that.

http://www.partsamerica.com/ProductD...ype=27&ptset=A

Is the mount Im planning on getting. How hard is it to do the mount and do I need any special tools

Thanks for all yalls help.

Sam
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Old 08-16-2006, 09:11 PM   #10
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Bump!
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