Question about 1989 Ford F 350

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Truck heats up climbing a hill

II have 89 ford 7.3 the heater blows hot air but when i'm climbing a hill it will heat up what could this be it is a f-350 rollback

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  • amos2175 Mar 08, 2009

    i changed the thermostate and put new coolant in the cab heat is hot

  • amos2175 Mar 08, 2009

    the temp gauge will heat up i have drained the rad and washed it out with a garden hose ther is no leaking around the water pump no slop in the water pump it just started to do this i can let it run for 30 mins and it won't heat up(temp gauge) i'm lost on this

  • amos2175 Mar 08, 2009

    don't smell coolant it's weird temp only heats up going up big hills it did boil back at the over flow container there is no oil in coolant either truck has power too

  • Anonymous Mar 17, 2014

    my 04 ford focus is over heating when I climbing a hill and air is on

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Replace the thermostat and check coolant levels. your saying the inside heater blows hot air right?

Posted on Mar 08, 2009

  • 1 more comment 
  • josh1111 Mar 08, 2009

    the guages in the dash could go bad too. is the coolant burning up can you smell it at all? ill think on this problem some more, tricky one.

  • josh1111 Mar 08, 2009

    how do the fins in the radiator look ?buggy? hows the fan and fclutch working? does it have an engine oil cooler in it i think so. inspect this too. does the oil guage change at all?

  • josh1111 Mar 08, 2009

    engine oil cooler? like a smaller radiator, does it have one?

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Blows cold air turn heat on


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Jan 28, 2016 | 2005 Hyundai Tucson

1 Answer

My heat or defraust works on my 89 Cadi Devile just continues to blow cold air


Is your eng get warm if you eng is not heating up it can be a thremaste stuck open if the eng is heating up ck the heater hoses if the top hose is hot and the bottom is cold the heater core is pluged if the two are hot and warm the blend door is not working

Mar 06, 2013 | Cadillac DeVille Cars & Trucks

2 Answers

2003 f350 diesel no heat


thermostat is sticking open

Dec 25, 2012 | Ford F-350 Cars & Trucks

1 Answer

No heat from vents


As per your problem mentioned. There are few solved help links to troubleshoot these problems. Go through the list and Click the link below:----

2000 Toyota Avalon: No heat on Passenger Side?

http://whatisbyme.blogspot.in/2012/05/2000-toyota-avalon-no-heat-on-passenger.html

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No heat on Oldsmobile Silhouette?


http://technoanswers.blogspot.in/2012/02/no-heat-on-oldsmobile-silhouette.html

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Heater blows cold?

http://schematicsdiagram.blogspot.in/2012/02/heater-blows-cold.html

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Heat blows cold on drivers side and hot on passenger side?

http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html

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Hot air on the driver's side vents only?

http://repairhelpcenter.blogspot.com/2012/01/hot-air-on-drivers-side-vents-only.html

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Temperature gauge does not move and no heat when heater is ON?

http://technoanswers.blogspot.com/2012/01/temperature-gauge-does-not-move-and-no.html

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1992 Toyota Camry: A/C Control light Flashing and A/C not Blowing Cold?

http://technoanswers.blogspot.in/2012/04/1992-toyota-camry-ac-control-light.html

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No heat, blower blows only cold?

http://technoanswers.blogspot.in/2012/02/no-heatblower-blows-only-cold.html
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Ford F150 Ac only blows through defrost vents?

http://technoanswers.blogspot.com/2012/01/forf-f150-ac-only-blows-through-defrost.html

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Dodge A/C come out of defrost vents only?

http://technoanswers.blogspot.com/2012/01/dodge-ac-come-out-of-defrost-vents-only.html

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Ac vacuum line on dodge cummins?

http://technoanswers.blogspot.com/2012/01/ac-vacuum-line-on-dodge-cummins.html

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Ford ranger AC blows cold through defrost vents instead on cabin vents?

http://technoanswers.blogspot.com/2012/01/ford-ranger-ac-blows-cold-through.html

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2005 Chrysler PT Cruiser: A/C Blows Warm?

http://whoisbyme.blogspot.in/2012/06/2005-chrysler-p8t-cruiser-ac-blows-warm.html


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2009 Mercury Grand Marquis: A/C blows Cold From Defrost Vent Only?

http://whoisbyme.blogspot.in/2012/06/2009-mercury-grand-marquis-ac-blows.html

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AC not blowing through Vents on 2007 Chevy Trailblazer?

http://schematicsdiagram.blogspot.in/2012/04/ac-not-blowing-through-vents-on-2007.html

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Passenger side temperature is warm air out of dash vents?

http://schematicsdiagram.blogspot.in/2012/04/passenger-side-temperature-is-warm-air.html

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These will help.

Thanks.

Nov 28, 2012 | 2006 Ford Taurus

2 Answers

The truck 2005 ford 350 the heat is not working is blowing cold air


Check for correct coolant mixture. Also you could have a thermostat that is stuck completely open causing it to flow straight threw the engine block, cylinder heads, heater core, an radiator without stopping long enough to heat the coolant up to provide cab heat. It could also be a clogged heater core. Or a blend door on the HVAC box that is not allowing the heater core door to open. Hope this helps.

Nov 27, 2012 | 2005 Ford F 350 Super Duty

1 Answer

98 Ford Taurus Heat blows Full no matter how hot it is in the car and even though the Temp is turned down to 60. Also A/C does not work Blows Heat instead not just warm air actual heat. Can turn down fan...


The heater door is probably stuck in the full heat position. It could be a problem with the heater door motor or the controller - you'd have to check for both mechanical and electrical problems under the dashboard.

Feb 21, 2011 | 1999 Ford Taurus

2 Answers

What can cause my heat not to get hot in my 2000 ford expedition? the heat does blow but it blows only cold air.


Feel both your heater hose near the firewall. If one is colder than the other your heater core is bad.
If they are both hot its in the cab controls. Lee

Jan 05, 2011 | 1998 Ford Expedition

1 Answer

Defroster fan blows but no hot air comes out


If the heat blows hot, the defrost should also. If the heat does not blow hot air, it could be your thermostat, your heater core valve, or the heater core itself. with the vehicle being a 2002, the heater core is the least likely.

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1 Answer

Heater not working


What does that mean? It blows air but not hot air? It doesn't blow air at all with A/C or heat? I assume you mean it blows, just not hot. If so, make sure your car is running at operating temp. If the car isn't warming up, your thermostat is stuck open and the coolant can't heat up enough to transfer heat from the heater core to the air you're blowing out the vents. If your car warms up to operating temp just fine, you may have a heater core issue. Your core may be clogged with corrosion thus not allowing heat transfer as well. If the valve on the inlet hose to your heater core is bad it won't allow hot coolant into the heater core, once again no heat to the air blowing out your vents. One of these is most likely your issue. I hope this helps.

Feb 03, 2010 | 1995 Ford Escort

3 Answers

My heat in my truck doesnt work


the blendoor on the heater box maybe broken ck lines going to heater core and make sure they are hot. does the heat temp change at all from cold to hot?

Dec 05, 2008 | 2001 Ford Expedition

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