C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

silly noob question

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Old Aug 1, 2005 | 10:17 PM
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From: Harrisburg, PA 86 Vert w/ 89 wheels
Default silly noob question

i just thought of something new.... if youll give a listen.
i have white smoke out the exhaust and a coolant pressure light that comes on every now and then. I assumed that it was the head gasket.

I keep getting advice to check the oil and coolant levels however to verify the antifreeze isnt getting into the oil and the oil isnt getting into the antifreeze. I am admittedly handicapped at this stuff, but I can't see any evidence that they're mixing.

s there another gasket that could be the problem then? Intake gasket? Is there coolant passages near the exhaust manifolds?

I'm doing my compression test soon, but I just don't understand my indications. Help?
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Old Aug 2, 2005 | 12:02 PM
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Yes. A leaking intake manifold gasket can allow coolant into the combustion chambers and cause white "smoke". You should still see signs of coolant in the oil.

I'd like to know more about your, "coolant pressure light".

RACE ON!!!
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Old Aug 2, 2005 | 01:38 PM
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Originally Posted by CFI-EFI
I'd like to know more about your, "coolant pressure light".

RACE ON!!!
me too.
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Old Aug 2, 2005 | 02:39 PM
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oh wait i meant to say "coolant level"
but the level is always fine, so i assume that there might be a pressure input too? maybe its the sensor?
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Old Aug 2, 2005 | 02:52 PM
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Originally Posted by illinest
oh wait i meant to say "coolant level"
but the level is always fine, so i assume that there might be a pressure input too? maybe its the sensor?
You need a factory service manual, badly. "so i assume that there might be a pressure input too?" Is that what your owners manual says? Where are you checking the coolant level? If the light comes on, there is a real good chance the coolant is low. If unattended, you could fry an engine.

RACE ON!!!
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Old Aug 2, 2005 | 03:12 PM
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Is there always smoke or only during warm up ??
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Old Aug 2, 2005 | 03:59 PM
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From: Harrisburg, PA 86 Vert w/ 89 wheels
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Originally Posted by CFI-EFI
You need a factory service manual, badly. "so i assume that there might be a pressure input too?" Is that what your owners manual says? Where are you checking the coolant level? If the light comes on, there is a real good chance the coolant is low. If unattended, you could fry an engine.

RACE ON!!!
well i DID suck it up and purchase the factory manual, but when i say the level looks good i mean that i checked under the cap and in the overflow tank and they are both fine.
i dont know where else to check....
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Old Aug 2, 2005 | 04:00 PM
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Originally Posted by AGENT 86
Is there always smoke or only during warm up ??

always at startup and then it goes away to a greater or lesser extent. once the car gets hot, it will sometimes start smoking more profusely in traffic (for example)
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Old Aug 2, 2005 | 06:00 PM
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sounds like a head gasket to me
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Old Aug 2, 2005 | 06:16 PM
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Originally Posted by illinest
...
It's not expensive to have a shop diagnose this.
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