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IRISHH ... 9/3/2010
2003 Chevrolet C6500 Kodiak C6C042 6 Cyl 7.8L - Engine
sludge in coolant reservoir
We Installed an external transmission cooler to eliminate the chance of mixing trans. oil through trans. cooler in radiator. Fully flushed coolant system but are still getting a grey gelatinous build up in the reservoir. Recently oil pressure has decreased at idle to now 10-15 psi at idle when hot. No major loss of oil or trans fluid or change in fuel economy. Has anyone else had the same problem and if so what was the fix? thanks.
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