Question about 2003 Chrysler 300M

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NO HEAT. Blower / fuse / relay / fans - are OK. Noticed low level of antifreeze. Topped off & blead system several times. Topped off again. All operating temps are good. No wet floor board discovered at passenger side. Read somewhere about "temperature door actuator." Could this be the problem? History of A/C compressor frozen & small leak found at lower heater hose today. These do not factor with problem however..

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The flap directing air to the heater core may be jammed. otherwise, the valve on the in flow side of the hose may be frozen, or partially restricting the flow of hot coolant. good luck!

Posted on Nov 06, 2010

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On my 03 chevy silerado my blower came on going down the road and wouldn't turn off I took the relay out and it quit but when I put it back in now wont work at all.


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Sounds like a power steering problem. Check the PS fluid level and add some if it is low. The blower issue could be at the blower motor, fan switch, or a bad blower relay. The relay is a good candidate and you can pick those up at auto parts stores and just plug it in.

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I have a 2000 lincoln continental and have recently replaced the thermostat due to over heating. after purging the coolant system the car will still 0ver heat am I not bleading the system right or is...


Provided the thermostat was put in right there are several things to check. Your engine is also air-cooled. There is a series of switches which work off of engine water temperature and the A/C setting. The electric cooling fan may have 2 speeds. If the electric fan motor or if the Relays or activation sensor do not work, the engine will not be cooled by air. The water cooling system is not good enough to do the job by itself.

The electric cooling system is fused and has a Relay.

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If it doesn't over heat it's very possible that there is just too much coolant, so if it's leaking from the overflow there is no problem as that's what it's designed to do

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My 2002 audi a3 1.9 tdi is overheating? I have


If your cooling fan is not working you solved your own problem. The cooling fan is what helps your radiator perform its function. The radiator cools down the antifreeze mixture by separating it into small tubes separated by air fins, the fins allow a greater surface area for air. The radiators main function is to dissipate heat into the surrounding atmosphere which it can do well at highway speeds without a fan, but most modern cars need a cooling fan to help pull air across the radiator.
The wiring diagram for your vehicle suggests that there is a 5 amp fuse 4 and a 40 amp fuse 42 that run the radiator fan and control which should be located in an under hood fuse/relay box. Check them with a test light on both sides, with the light to ground you should see a positive voltage at both sides. the 40 amp would most likely be a maxi fuse, or a larger size then the regular atm fuse for the 5 amp,

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