So my gf's 00 GTP had some smoke come up from the front valve cover twice, the two instances being a few weeks apart. Thinking it's the LIM, but it hasn't smoked for 2-3 weeks now and we've been keeping an eye on the oil to see if anything coolant has been leaking internally...nothing. Oil looks fine. I was planning on replacing the LIM but is there something else I should look at before pulling the engine apart. Either something to make sure it's the LIM or something else that would cause a similar diagnosis as a LIM leak?

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Previous: '99 GTP 246 hp, 350 ft-lbs dyno tested
Current: '07 G6 V6...slow

"Wide open 'til you see God....then brake."

did he have the recall work done??? that would be my guess

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ALL GO, LITTLE SHOW

• 2004 Comp G - Modded Like A Mofo And Hibernating

• 1988 VW Jetta - Slammed Slow And Reliable

• 1994 Cadillac Eldorado ETC - Sold

recall was done

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Previous: '99 GTP 246 hp, 350 ft-lbs dyno tested
Current: '07 G6 V6...slow

"Wide open 'til you see God....then brake."

hmm. is there any oil around the valve cover area???

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ALL GO, LITTLE SHOW

• 2004 Comp G - Modded Like A Mofo And Hibernating

• 1988 VW Jetta - Slammed Slow And Reliable

• 1994 Cadillac Eldorado ETC - Sold

As far as I can remember, no. I haven't personally looked in like a week. I'll be looking Saturday.

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Previous: '99 GTP 246 hp, 350 ft-lbs dyno tested
Current: '07 G6 V6...slow

"Wide open 'til you see God....then brake."

not losing any oil or coolant?

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05 Bonne GXP, click for cardomain


somethings just cant be replaced ... good times...

nope

never smells like burning oil, just those two times it smelled like burning coolant

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Previous: '99 GTP 246 hp, 350 ft-lbs dyno tested
Current: '07 G6 V6...slow

"Wide open 'til you see God....then brake."

all i can say take the s/c out and see whats going on around the lim

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05 Bonne GXP, click for cardomain


somethings just cant be replaced ... good times...

Took a look today and she saw some S/C oil sitting above the front valve cover. No coolant leaking/smoke/milky oil or anything like that. So with that, i'm going to go ahead and guess that the S/C gasket is leaking.

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Previous: '99 GTP 246 hp, 350 ft-lbs dyno tested
Current: '07 G6 V6...slow

"Wide open 'til you see God....then brake."

The supercharger gasket does not hold any oil in. The oil is contained in the snout. Either the snout is leaking around the bolts that hold it to the casing, the fill plug is leaking, or the breather nut on the end of the snout is leaking.

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'02 Galaxy Silver GTX Coupe. SLP Headers, SLP cat-back exhaust, SLP 1.8 RR, ZZP 3.4/3.25" MPS, SLP hood, SLP CAI, Overkill PCM, 180 t-stat, SSIC, S1 TB, AL 104's, F/R STB's, F-body calipers.

the snout doesnt have a gasket does it?

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05 Bonne GXP, click for cardomain


somethings just cant be replaced ... good times...

No, it should have a thin bead of sealant.

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'02 Galaxy Silver GTX Coupe. SLP Headers, SLP cat-back exhaust, SLP 1.8 RR, ZZP 3.4/3.25" MPS, SLP hood, SLP CAI, Overkill PCM, 180 t-stat, SSIC, S1 TB, AL 104's, F/R STB's, F-body calipers.

Ok, thanks for the info. I suppose that would make sense, lol.

Had it run for a while today and no coolant on the dipstick. A small amount of smoke came from where the S/C oil was found.

So when I get the car in the garage. I'll pull the snout off and put a new bead of sealant on it. Does that sound like a good idea? If so, what are the torque specs for the snout?

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Previous: '99 GTP 246 hp, 350 ft-lbs dyno tested
Current: '07 G6 V6...slow

"Wide open 'til you see God....then brake."

Pretty unlikely that the snout just starting losing oil all of a sudden, silicone does not typical wear down or blow out like gaskets. I would for sure double check the upper & lower intake gaskets or valve cover gaskets for leaks...

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Thanks
Scott McKinney
http://www.motortopia.com/cars/16218" onclick="window.open(this.href);return false;

Is there any possible way to check those gaskets without pulling the top half of the engine apart? That'd be a lot of work to look at the gaskets and find that they're fine and have to replace them anyway.

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Previous: '99 GTP 246 hp, 350 ft-lbs dyno tested
Current: '07 G6 V6...slow

"Wide open 'til you see God....then brake."

Just simply look for visible leakage around the edges. If there is nothing visible, they are most likely good...

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Thanks
Scott McKinney
http://www.motortopia.com/cars/16218" onclick="window.open(this.href);return false;

If you think that it is suoercharger oil then take out the fill plug in the snout and look to see what the level is at. It should be right at the bottom of the threads of the fill plug.

If you want to check out the supercharger/LIM gaskets then start the car up and lightly spray something like brake kleen or starter fluid over the area. If the idle of the car changes (usually sounds smoother) then you know you have a leak.

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'02 Galaxy Silver GTX Coupe. SLP Headers, SLP cat-back exhaust, SLP 1.8 RR, ZZP 3.4/3.25" MPS, SLP hood, SLP CAI, Overkill PCM, 180 t-stat, SSIC, S1 TB, AL 104's, F/R STB's, F-body calipers.

Will external leaks still show up if the coolant is leaking internally?

Saw some white foamy stuff on the bottom of the oil cap, would this be coolant mixing in with the oil?

It just seems weird to me that it would leave some foam on the oil cap but not show up at all on the dipstick.

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Previous: '99 GTP 246 hp, 350 ft-lbs dyno tested
Current: '07 G6 V6...slow

"Wide open 'til you see God....then brake."