1997 Pontiac Grand Prix radiator flush

1997 PONTIAC GRAND PRIX
151,453 MILES • 6 CYL • 2WD • AUTOMATIC
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THOMAS COOPER
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I was checking the cooling system and I saw some brown sticky stuff in there. Now the question is if I get it flushed will that sticky stuff clog up my engine during the flush
Sep 17, 2009 at 8:27 AM
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MMPRINCE4000
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Drain the existing coolant, refill with water, run to operating temp, drain and refill with water and flush.

If using Dex-Cool, you MAY have a bad intake manifold gasket allowing oil into cooling system.
Sep 19, 2009 at 7:26 AM