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Cadillac Repair/2001 Deville DHS Overheat/Head Gasket
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Question
Car has 117k miles. Temp gage increases to high & Hot Engine indicator is illuminated. No fluids visible, but there is an odor of coolant. Dealership replaced thermostat & coolant and added a GM Sealer. Car still overheats. Could the gaskets need replacement & if so, what is the cost? Just purchased & no warranty.
This engine is FAMOUS for leaking head gaskets due to stretched aluminum threads in the engine block.
Repair is to drill out head bolts and install heli-coils in all head bolts in the block and install larger head bolts as well as the head gaskets.
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Expertise
On hands professional expertise in all aspects of Cadillac diagnostics and repair mid 1970`s thru 2000 year vehicles. GM certified in electronic fuel injection, Automatic transmission, Heating and A/C, and onboard vehicle computer diagnostics.
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Held over 15 GM certifications prior to retirement in 1989.
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Prior to retirement held several ASE certifications, numerous Factory certifications.
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