My 2000 Lightning is sucking oil into the black pipe which connect the throttle body & MAF together. I assume the oil is being sucked up through the hoses which route into the valve covers. The oil then leaks at the point where the black pipe & MAF connect. Overnight it will leave a 50 cent piece size of oil on the pavement underneath the truck.
Sounds like a major malfunction to me. Blowby maybe??? Any ideas or information will be appreciated. Thanks.

 

I was going to post this subject tonight. I just got finished swapping out my t/b and found a lot of oil in the intake behind the t/b. I had just changed oil to mobil and thought that was the problem. Is there any one els having this problem? Any one know why?

 

Well, I'll go out on a limb and say I think they all do that. Mine does too. I hate it and think the PCV fresh air inlet line should be replaced with a K&N breather.(No line) Remember the old air cleaners (at least in GM's) that had the metal tube to the air cleaner into a plastic mesh element? No more drips and no more oil residue on the intercooler either if ours wasn't where it is. When the S/C spools up, it just sucks like crazy on the fresh air line. Kinda like a venturi in a carburetor.

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Jim
Black '00
#1,757 built 3/30/00
Clear corners
J.L. Single program
J.L. Stage II ram-air


[This message has been edited by gforce (edited 01-12-2001).]

 

Everyone has that. I've read that the better the engine gets vented the better the rings on the pistons will seal. I don't know if thats true or not. Take a pcv valve off any car and look in it it's full of nasty looking oil. The supercharger just sucks it through the hose more.

 

Mine does it too. Definitely not "normal" but seems like a lot of them are doing it. An oil contaminated air/fuel charge is a good recipe for detonation. I blew a couple of head gaskets on my Buick because of this same phenomena before I figured out why that one cylinder kept detonating. If there is anyway to stop or lessen this in the L I suggest we all do it.

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2000 Silver L #4906
Best 1/8th mi stock:9.13
Best with R9 and 5,000 mi: 8.67
1995 Stang : (wifes'car) 12.30 1/4 mi
1972 Skylark: 7.16 1/8, 6.70 on the bottle

 

Both my '99 and '00 do/did it. Crankcase oil level doesn't drop so it can't be a too dramatic amount of oil.

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Red '00 Lightning,
Power Surge Performance enhanced,
Sound effects provided by Flowmaster,
375 RWHP,
445 RWTQ,
13.227@103.55
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