LIM Gasket

LukeZ34 · January 16, 2006, 12:36:53 PM

So what is involved in replacing this badboy?
I'm not sure if the one on our TGP has even been replaced at all in it's entire life. Are they prone to failing? What symptoms do they show when they are failing?

Prospeeder · January 16, 2006, 01:41:18 PM

3.1 MPFI Turbo or not do not have any LIM problems what so ever, i dont think iv ever herd of a 3.1 MPFI every having LIM failure. 3100 and 3400s up to 2002 1/2 had the problem, GM corrected it that year and no more failures after that

dbtk2 · January 16, 2006, 02:22:09 PM

Quote from: Prospeeder3.1 MPFI Turbo or not do not have any LIM problems what so ever, i dont think iv ever herd of a 3.1 MPFI every having LIM failure. 3100 and 3400s up to 2002 1/2 had the problem, GM corrected it that year and no more failures after that

My STE and my sisters old '93 GP LE both had LIM gasket failures.....but I do agree that its not a common problem so if it hasn't been replaced its not something to worry about.

Shawn

GangstGP · January 16, 2006, 02:43:34 PM

Irs a good thing to do if you want to clean off all the crud inside. better off getting it hot tanked then wasting cans of carb cleaner.

Invasion1 · January 16, 2006, 03:43:24 PM

Quote from: dbtk2
Quote from: Prospeeder3.1 MPFI Turbo or not do not have any LIM problems what so ever, i dont think iv ever herd of a 3.1 MPFI every having LIM failure. 3100 and 3400s up to 2002 1/2 had the problem, GM corrected it that year and no more failures after that

My STE and my sisters old '93 GP LE both had LIM gasket failures.....but I do agree that its not a common problem so if it hasn't been replaced its not something to worry about.

Shawn

Agreed not a common problem but I have seen a few 3.1's with a LIM leak where coolant blows into the engine....(nasty) and where air sucks in due to a gasket failure.

a boosted 3.1 would have boost loss if this were an issue....

what spured your concerns Luke?

LukeZ34 · January 16, 2006, 03:54:22 PM

Quote from: Invasion1what spured your concerns Luke?

Well, the first thing that concerned me was finding traces of milky whitness when I changed the oil last.
I haven't done a compression test yet, but it's on the list of things to do.
I was just curious as if a leaking LIM could cause coolant to enter the engine oil somewhere.
Either way, I need to find out why the oil was like that. I'm going to spend the evening working on the car. I ordered the vacuum line kit from GM for it as the old ones were in terrible shape.

This car has so many gremlins it's not even funny.
Brakes need bled
Charging system is unstable
All 4 shocks need changed
Loud pop coming from the tranny on a R to D shift
Still a fast idle

The money is finally coming in, so maybe I can get this thing running good soon. 8)

Prospeeder · January 16, 2006, 04:09:28 PM

you can still get vacuum kits for these cars??? How much was it and the p/n

R Dubya · January 16, 2006, 04:39:01 PM

Quote from: Prospeeder3100 and 3400s up to 2002 1/2 had the problem, GM corrected it that year and no more failures after that

Not the case wise one.. I've seen at least 5 03-04 Grand Ams, Aztecs, etc in the last 3 months needing intakes. GM didn't fix shit, they are the exact same as the factory 6 years ago..

Invasion1 · January 16, 2006, 04:40:13 PM

yes you can have coolant leaking into the engine if one of the gaskets is bad or failing.

ether that or....dare i say it headgasket :oops:

Prospeeder · January 16, 2006, 04:45:29 PM

Quote from: RW89TGP
Quote from: Prospeeder3100 and 3400s up to 2002 1/2 had the problem, GM corrected it that year and no more failures after that

Not the case wise one.. I've seen at least 5 03-04 Grand Ams, Aztecs, etc in the last 3 months needing intakes. GM didn't fix shit, they are the exact same as the factory 6 years ago..

Really?! i as under the impression they fixed it for 02 1/2, crappy deal

LukeZ34 · January 16, 2006, 04:52:31 PM

Yea, the kit is just the lines from the TB to the closest components.
Here's a pic of what I got:

I'm worried that it's a headgasket issue, but I'd like to hold out some hope that it could be a leaky LIM gasket. I just need to do some more looking in to it, and do a compression check to find out for sure.

Invasion1 · January 16, 2006, 04:53:02 PM

QuoteReally?! i as under the impression they fixed it for 02 1/2, crappy deal

then your original post should perhaps say....

Quote3.1 MPFI Turbo or not do not have any LIM problems what so ever, i dont think iv ever herd of a 3.1 MPFI every having LIM failure. 3100 and 3400s up to 2002 1/2 had the problem, I though GM corrected it that year and no more failures after that.

:wink:

Invasion1 · January 16, 2006, 04:55:52 PM

Quote from: LukeZ34Yea, the kit is just the lines from the TB to the closest components.
Here's a pic of what I got:

I'm worried that it's a headgasket issue, but I'd like to hold out some hope that it could be a leaky LIM gasket. I just need to do some more looking in to it, and do a compression check to find out for sure.

Ya Luke thats it....i got one that same mess of tubes for mine and same part #

will fit fine.... :D

do you still have the clip that holds the rubber into the TB Vac Port?

LukeZ34 · January 16, 2006, 05:03:15 PM

Quote from: Invasion1

do you still have the clip that holds the rubber into the TB Vac Port?

Aw hell no.. :lol:
I wish I did, I can't push in to boost very far right now because the damn thing pops out!

GangstGP · January 16, 2006, 05:03:16 PM

Quote from: LukeZ34Yea, the kit is just the lines from the TB to the closest components.
Here's a pic of what I got:

I'm worried that it's a headgasket issue, but I'd like to hold out some hope that it could be a leaky LIM gasket. I just need to do some more looking in to it, and do a compression check to find out for sure.

I bought one of those and in like 3 years, the rubber couplings were shot. I ended up just getting vacu-tite fittings that were too small and cramming them on. It provided a way better fit than the factory harness. Especially the FPR fitting. the thing leaked like a siv.