Question about Fiat 124

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Heater blowing luke warm when on hot on a ldv pilot

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  • Jim Dec 06, 2008

    I have the same problem with my 1993 90 CS. I have spent $600so far and no one has been able to fix it yet. I have replaced the thermostat, the temperature sensor and had the heater core tested so far. The heater still does not blow hot. I am at a loss and frustrated.

  • irishday07 Dec 11, 2008

    I have the same issue (but do not have dual control) defrost blows cold and the vents and floor only put out luke warm air..have changed the thermostat and flushed the radiator...no help...I was told there was only 1 temp thermostat. Is there anything else to try before changing out the heater core.

  • skywalker153 Dec 11, 2008

    Hi I have the same problem with my 206 the heating never gets hot only when it feels like it, temp guage evrything else okay but heating luke warm any help would be appreciated

  • Anonymous Jan 23, 2009

    I have a Chevy caprice the heat only gets Luke warm at best. I have replaced the heater core, all hoses, and Radiator it got warmer for about a week then back to Luke warm at best any suggestions

  • johncesco May 11, 2010

    If it was the heater core or thermostat, wouldn't the air temp be the same on both sides?

  • johncesco May 11, 2010

    The problemis that the air coming out at floor level is hot on the left side, cold on the right side. I assume it has something to do with the dual-zone control, but no matter what I do, it still does this. Also, the defrost air is cold. Any help is appreciated, Thanks, John

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You should eather replace your heater core or upgrade your thormastat to a higher temp. one

Posted on Dec 05, 2008

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1 Answer

The heater on my 98 ford expidition blows hot air at first and then blows only Luke's warm. If I shut heat off and turn back on it will blow hot and then turn Luke warm why


-Sounds like the system is clogged or the on off valve is not open
properly.
-Check the valve and flush the system. It should be good to go.

Good luck

Mai

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Heater temp on high only bows luke warm air after driving. A/C works just fine.Plenty of cold air from it


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Heater not working ?


There could be more than 1 thing wrong, I assume the fan works because the A/C blows cold, as for the heater is it blowing luke warm or nothing at all. If the thermostat was removed and left out you would have luke warm air because the water that circulates through the heater is not getting hot if this is the case replace the thermostat with the correct one, another issue would be the heating element under your dash has no power to it or the element has deterioated.

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1 Answer

I just replaced my thermostat and all fluids are full and my heat is blowing luke warm, the hose to the heater core is hot real hot still not blowing hot


Check the return line on the heater core. If its not warm or hot, the core has a clog. Will have to be replaced.

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1 Answer

Mercedes 190E heater blowing just luke warm air


there should be an electric water pump exclusively for the heater. on these 201 body cars it should be under the hood, on the passenger side,near the fender well. when the heater is engadged, this pymp should turn on pushing the hot water into the heater core. if these are not working, it will obstruct the water flow.

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try replacing the thermostat with one with a higher temp rating if you have a 160 in it the heater will not blow hot you need at least a 190

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1 Answer

Heater is blowing luke warm heat


Double checking, does fun shut off when switched to heat instead of defrost?

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