The car sometimes overheats slightly. The temp gauge does not show overheating but I can hear the water bubbling in the overfill reservoir. It appears that the fans are not kicking in They may not be functional.
SOURCE: 1999 Mercury Cougar started overheating.
My 1999 Cougar started running hot and I took it to my mechanic and he found that the water pump belt was broke. Replaced belt and all is well. Hope this help.
SOURCE: My radiator fan won't turn off on a 97 mercury Tracer.
its probably a stuck relay locate it and replace it with another most likely that will cure it. check under the hood for a relay center.it should be diagrammed on the lid and use 1 from a different position first pull the one for the cooling fan if it stops that should cure it
SOURCE: my car is overheating.
You probably have a bad head gasket. As coolant mixes with the oil, it diludes and therefore will cause your oil pressure to run high. Check your oil while warm to see if it looks like choclate milk. Check your tail pipe for white smoke. You can also rent a block tester from Autozone ($25.00 with Autozone's free loan-a-tool program) and buy the test fluid for $8.99. Take off your radiator cap and put the cone in while your engine is running an within operating range. Fill the test fluid to the fill line and squeeze the aspirator for two minutes. If the fluid turns yellow or green, you have combustion/emission gases in your cooling system. This is caused by a bad/leaking head gasket or a cracked/warped block/head. Hope this helps out.
SOURCE: my car overheats. it doesnt lose cooling fluid.
dont say how long it takes to overheat. try replacing thermostat,often when stuck close one hose will be cooler than the otherand check the timing,if this is out it will cause symptom. do you have the shroud around the fan still.it assists in drawing heat off radiator.other question is of course:is the temp gauge correct,see if your local garage can run their temp gun over rad etc to see what is hot and how much.or you may be able to hire one
SOURCE: I have a 2002 Mercury Sable 3.0. I noticed when
The clicking noise is the motor for the "blend door". The heater core and the air conditioning side share the same ducting. When you move the knob a small motor moves the door letting the respective hot or cool flow happen.
The heater core is probably blocked. The engineers at Ford have the coolant hoses bypassing the core with a WYE at the firewall. The coolant takes the path of least resistance and stops FLUSHING the heater core and it eventually clogs.
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