Why has my anti freeze mixed with my oil

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Oil looks like brown mud and truck has no pressure

Sep 17, 2016

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What are the best GMC repair shops?

RepairPal Certified shops can diagnose and repair your 1997 GMC Yukon. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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What is your question?

Popular Answer

Why has my anti freeze mixed with my oil

What is your question?

Oil looks like brown mud and truck has no pressure

Donnalamon in Stone Mountain GA

Sep 17, 2016

1 Reply

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pushrodon Sep 17, 2016

Usually on a 'pushrod engine' (like in this vehicle) that's caused by failed *intake manifold* gaskets! .. Head gasket failure is 'possible' but not as likely!! .. Partial engine disassembly required for inspection... Suggest intake manifold removal and gaskets be carefully inspected at the water/coolant ports... BTW .. Crankcase oil is right below the intake manifold!

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Popular Answer

What are the best GMC repair shops?

RepairPal Certified shops can diagnose and repair your 1997 GMC Yukon. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.