LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Help with leak

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Old Sep 1, 2010 | 07:20 PM
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JeaneGrae's Avatar
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Default Help with leak

My brother has a 94 Z28 with m6. He is leaking coolant from what he said looks like in between the engine and tranny. Are there coolant lines in this area that could be leaking? Do the M6's have the attachment to the radiator for cooling?
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Old Sep 1, 2010 | 07:25 PM
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If the leak is on the passenger side, check the heater core lines that go into the firewall. If the leak is on the driver side, check the oil cooler (if he has one). This of course ruling out the possibility of a blown/leaking head gasket.

Last edited by RamAir95TA; Sep 1, 2010 at 07:32 PM.
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Old Sep 1, 2010 | 07:27 PM
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It could somehow be the steam vent coming off the back of the heads. Or a head gasket leak.
Is he absolutely sure it's coolant and not oil? The back of the intake manifold leaking oil is a common problem and is in that same spot.
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Old Sep 1, 2010 | 07:32 PM
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Originally Posted by Johnny-LT1-runner
It could somehow be the steam vent coming off the back of the heads. Or a head gasket leak.
Is he absolutely sure it's coolant and not oil? The back of the intake manifold leaking oil is a common problem and is in that same spot.
Ah good call on the steam line. That little bastard.
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Old Sep 1, 2010 | 07:48 PM
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Its defiinatley coolant. He has to add water or coolant once a week. I asekd him about the head gasket, are there any other signs of a bad head hasket? I thought he would get smoke or steam from his exhaust????
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Old Sep 1, 2010 | 10:41 PM
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Does anyone have a pic or diagram of where the steam line is located?
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Old Sep 1, 2010 | 11:01 PM
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http://shbox.com/1/egr1.jpg



You see the bolts holding the pipe connected to the back of each head? It runs down the passenger side of the intake and to the radiator.
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