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Your 1991 grand marquis v8 runs hot after replacing hoses and thermostat this problem started after thermostat replacemen Any ideas?
Wiki User
∙ 15y ago
Possible new thermostat is bad and not opening. Is the lower radiator hose soft? Had a Ford pickup one time that would run hot when driven over 55MPH. Finally figured out the lower radiator hose was colapsing with high engine RPM from the suction of the water pump reducing coolant water circulation. Hope this info helps cure someones problem.
Wiki User
∙ 15y ago
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