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1996 cutlass supreme 3.1L overheats right away fans working no heat in car?
Wiki User
∙ 13y ago
These engines have a problem with the lower intake manifold gasket material giving way causing the coolant to mix with the engine oil. You have no heat in the car because no water is running through the heater core- most likely. I've had two and they both had this problem.
Muddy engine oil is an indicator of an internal leak.
Stuck / blocked thermostat can cause overheating.
Air in cooling system could also cause problems. 96 has 2 coolant vents to bead the cooling system.
Wiki User
∙ 13y ago
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