Question about 2002 Mitsubishi Eclipse

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2004 Mitsubishi Eclipse-no heat?

I changed thermostat & flushed heater core. Checked fuses and still no heat.

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Check thermostat and water pump.the water pump could be working good enough to ke the engine cool but dosnt have the pressure to push it thru. i ran in to this prob be for no heat and the engine didnt over heat. the antifreeze ate the blades off the water pump. it was crazy.

Posted on Nov 10, 2012

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Posted on Jan 02, 2017

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Pattods
  • 116 Answers

SOURCE: not getting heat in cab

Is the blower running at all? Also, make sure the main air intake vent is free of obstructions.

Also, a vacuum leak could cause the actuator to not function correctly. I'd check into the vacuum lines if all else fails. I've had too many cars here with heat/air problems due to vacuum loss and the actuators not switching correctly.

Posted on Sep 10, 2008

  • 11 Answers

SOURCE: heater problem / engine over heating 5.7 hemi 2004

Test for blown head gaskets, combustion gases can be tested at the radiator neck with engine running

Posted on Mar 11, 2009

  • 9 Answers

SOURCE: no heat coming out of vents

be sure you have no coolant leak and check if you have a blead valve on the engine for the coolant if you do, blead the air out

Posted on Oct 18, 2009

cmm19987
  • 82 Answers

SOURCE: 1999 ford taurus no heat

Is the blower motor working? If not that is what it is. If it is working then check heater coil out, Could be bad heater coil.

Posted on Nov 10, 2009

bobiii84
  • 65 Answers

SOURCE: Have no heat. Have replaced heater core,

I don't know your vehicle, but does it have a blower door tucked in where the heater core is? If it DOES and that's broken then it could be the whole problem. It would mean it isn't switching from the A/C side of things to the heat side of them. Hope this helps, good luck! Also, just looked up the proper name for what I'm talking about, it's called a "blend door" and I think your car has one. It's what I would check, again, good luck!

Posted on Jan 20, 2010

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1 Answer

No heat. I have done the following. Blown out both hoses to the heater core. Flushed the heater core. Checked the blend door. Heater core does not leak at all. Should I continue trying to flush it out or...


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If they actually flushed the heater core itself you will need to check that the valve that allows coolant to flow through the heater core is operating properly. There should be a valve near the firewall where the 2 hoses attach to the heater core. In heat mode the valve should open and in A/C mode it should close. Please rate this answer, thanks.

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I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

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try flushing cooling system could be a blocked heater core.if flushing doesnt work remove and replace heatercore.

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have your heater core pressure checked. it maybe clooged even though you had system flushed. additionally did you buy the correct thermostat? the computer is a sensitive thing and alot of other components are activated because of the temperature. the opening temp is 188-195 degrees. so you should have bought the 185 degree thermostat. i had same problem and bought the higher temp thermostat. i couldn't believe that such a small change would make a big difference. good luck.

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1 Answer

No heat is there a fuse 2003 f250 is there a fuse for heater


i don't know realy if there is a fuse (though i doubt it) but issues with heatting may be this will help.

If the carpet under the heater core is damp, or if antifreeze vapor or steam is coming through the vents, the heater core is leaking.
Remove it and install a new unit (most radiator shops will not repair a leaking heater core.
If the air coming out of the heater vents isn't hot, the problem could stem from any of the following causes:
  • The thermostat is stuck open, previnting the engine coolant from warming enough to carry heat to the heater core. Replace the thermostat.
  • There is a blockage in the system, Preventing the flow of coolant through heater core. Feel both heater hoses the firewall. They should be hot.if one of them is cold, there is an obstruction in one of the hoses or in the heater core,or the heater control valve is shut. Detach the hoses and back flush the heater core with a water hose. If the heater core is clear but circulation is impeded, remove the two hoses and flush them out with a water hose.
  • If flushing fails to remove the blockage from the heater core, the coremust replaced.

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1 Answer

Very Little Heat.


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