um, i'm scared. i saw antifreeze. on my bellhousing. - 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 10-17-2003, 07:29 PM   #1
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Default um, i'm scared. i saw antifreeze. on my bellhousing.

What does this mean?
Isn't this thing that happens alot?
anyway, i was driving the car over to my buddies house because he'* got a brick wall i could use to aim the headlights... while we're there, i look over at the bell housing and notice some fluid. we had the car running for tunes, and the fluid was running. prolly a cup or two there. i tasted it, definatly anti freeze, and from looking around, it seems to be coming from the forward screw on the TB, in the black bracket under the TB. i hope that lets you know what'* going on... i really cant think. other than to figure it'* my luck, as i just got the uni body banged back out...
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Old 10-17-2003, 07:31 PM   #2
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Hopefully it'* just the Throttle Body base gasket that'* leaking! If not then the lower Intake will have to come off.
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Old 10-17-2003, 07:40 PM   #3
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what are my chances for hydrolock?
what'* the dificulty on the TB gasket?
what'* the hopeful chance it'* the TB gasket?
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Old 10-17-2003, 08:01 PM   #4
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Well although it is possible, hydrolocking is usually the problem for the series 2 NA engines, not yours. But I guess it can happen still.
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Old 10-17-2003, 08:08 PM   #5
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Hope it'* the TB gasket. The L27 is a bitch to remove in comparison to the L67. The bracketry is slightly different, since your TB actually mounts at an angle to the upper intake flange.

You'll have to remove the throttle/cruise cable bracket, the crossover heat shield, and a couple other things to get the TB off, but if you do this, consider it a prime opportunity to remove your MAF sensor, and thoroughly clean the TB (off the car). Then put the new gasket on, and go along your merry way.

First though, get an inspection mirror and flashlight in there and try to find the highest point you can detect leaking coolant. It'* critical at this point to determine exactly where it'* coming from. Easier to do in a dark garage, or at night, btw.

If you do have to remove the TB, be warned that the L27 upper intake occasionally has a problem with the threaded anchors that the TB studs mount into. They can spin in the intake flange, and not loosen. I suggest spraying a liberal amount of liquid wrench on the nuts (on the TB side) and the anchors behind the TB flange about an hour or two before attempting to loosen anything.

(I've removed the TB on Jseabert'* 93SSE twice, my SSEi once)
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Old 10-18-2003, 12:11 PM   #6
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Hey Will....I didn't find the L27'* TB all that difficult, took only 10 mins to R&R too. It took me longer to clean it than to take it Off & put it On again.
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