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Old 04-12-2007, 01:31 PM
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BNaylor BNaylor is offline
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Re: coolant leaking to ??

Welcome to AF.

It is common especially for 97-98 Grand Prixs with the SII 3800 engine to suffer from internal coolant use due to a bad UIM causing by the EGR stovepipe problem or simply bad UIM and/or LIM gaskets. I've seen cases where there are no signs of smoke (white) coming out the exhaust and no driveability problems.



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'08 Pontiac Grand Prix GXP (Dark Slate Metallic) - LS4 5.3L V8
'02 Oldsmobile Alero GL2 - LA1 3400 V6
'99 Buick Regal LS - L36 Series II 3800 V6
'03 Honda CR250R MX - 2 Stroke 250cc
'97 Pontiac Grand Prix GTP - L67 Series II 3800 V6 Supercharged (Sold)
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