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Old 05-01-2018, 07:39 AM   #1
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Atommik's Avatar
Join Date: Sep 2011
Location: Golden Valley,MN
Posts: 630
daily driver troube

Hey all,
My daily driver is a 1999 suburban 1/2 ton 4x4. 5.7 Vortec... I've got an internal coolant leak turning my oil to brown sludge. I'm guessing either a bad head gasket or bad intake gasket. What's the best diagnosis method? Compression test? Or should I assume the head gasket is the problem and replace that and the intake at the same time?
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