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1996 CROWN VIC . replaced thermostat and still not heating up as warm as it should be . where do you start looking?
Wiki User
∙ 14y ago
If the system is working good, and all is working good inside, then it is possible to have an air lock. With the engine off, remove one of the heater hoses at the fire wall. Put it back on. Start the engine, and as it comes to operating temp. with the heater in the car on full, slowly open the heater hose slightly to let any air trapped in there out. Do this several times, check the heat level, if good, top up rad. and tighten the heater hose.
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∙ 14y ago
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