Anti freeze leak 93 - 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 03-08-2007, 07:30 PM   #1
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Default Anti freeze leak 93

This is a 1993 SE. Having changed the water pump, upper & lower intake/plenum, throttle body and thermostat gaskets I have found coolant where the EGR "tube" ties into the block. It'* below the thermostat, but I can't feel any moisture on the upper hose etc.
Is common malady in this area that I have overlooked?
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Old 03-08-2007, 10:56 PM   #2
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The EGR doesn't tie into the block at any point, so we're either going to need a picture or a much better description of the location.
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Old 03-09-2007, 12:27 AM   #3
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It is the tube (metal appx 1") from the bottom of egr that ties in with a single bolt retaining flange.
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Old 03-09-2007, 12:57 AM   #4
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There is no coolant source there. The EGR mount bolts to the cylinder head. There is no coolant in the EGR itself.

You have to narrow it down. Gravity is your friend. Look up.
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