Question about 1985 Chevrolet K1500

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Heat i have a 1985 k1500 and it has no heat i need to know where the heater core is and the thermostat is

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  • Anonymous Jan 16, 2009



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Heater core is under the dash on the passenger side and the thermostat is located on the engine. just follow your top radiator hose from the radiator to the engine and it stops at the thermostat

Posted on Jan 06, 2009

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92 chevy 1500 silverado Changed thermostat,heater core, core hose not hot. No heat

It sounds like your heater core is stopped up. try flushing it out, you can use a water hose. and if you cant get it to clean out then you will need to change the heater core.

Oct 17, 2011 | 1992 Chevrolet K1500

1 Answer

Need to replace heater core in 1985 chevy el camino..isnt core inside under dash on passenger side of vehicle

The heater core in 1985 was still accessed from the engine compartment. After you drain the cooling system, disconnect the heater hoses. They should be 2 different sizes so take note of which one goes where. Unplug the electrical from the case and then unbolt it. Pull it off and replace the heater core.
If you have A/C then it is a little more complicated. After you remove the heater hoses there is a retaining bracket and ground strap that have to come off first. Then take off the rubber seal and screen. The right wiper arm needs to come off next followed by the diagnostic connector, high blower relay and thermostatic switch. Now you can unplug the electrical from the case and the top cover and screen and take the heater core out.
Once you have it back together, when you go to bleed the air out of the system, make sure the heater is turned on maximum heat and the fan is on high. This will ensure that coolant goes through the new heater core. Hope this helps.

Apr 24, 2011 | 1985 Chevrolet El Camino

2 Answers

Why will my 1985 Ford Bronco heater not heat up?

well it might be you engions not heating you see the heater draws heat from the ingion but if the thermistat is stuck open then the engion will stay cold and the heater will only blow cold air

Feb 04, 2011 | 1985 Ford Bronco

5 Answers

Heater blows cold air no heat

There are three thing that can go wrong here. I will give you the two simple ones first. first, check to make sure the thermostat isn't sticking or stuck. if it is, change it. two, Hot coolant going from the engine to the heater core, is controlled by a valve at the engine(these do go bad). Check the line when the engine is warmed up by turning on the heater(I know), and feel the line after about 5 minutes. The line should get hot, or very warm. The third is your heater core is clogged and needs to be replaced. hope this helps you

Jan 21, 2011 | 1985 Nissan 300ZX

1 Answer

1998 Chevy Tahoe doesn't heat up except when engine is reved up over 2000 rpm. Took heater core out and flushed it, checked hoses don't know what else to check? Help

Iv the engine is not getting up to operating temperature and it is full of coolant (50/50 mix of coolant and water) the thing to check would be the thermostat. Where the hose comes off the top of the radiator and goes into the engine block there will be a round top housing there very close that houses the thermostat. Take off the housing and remove the thermostat. Place the thermostat in a pan of water on the stove and heat the water. Watch the thermostat. If it does not open when the water gets hot it is defective.

Nov 16, 2009 | 1998 Chevrolet K1500

2 Answers

No heat

Sounds like the radiator line are plugged. What you can try is taking off one rad hose lin 1 Side at radiator and the other at the water pump to engine Run water through lines leaving both lines open should flush all debris away may have to do it a few times. Where this runs thorugh heater core and back out. But do not use alot of presure from the hose.

Jan 24, 2009 | 1985 Ford F150

1 Answer

1985 toyota tercel has no heat, blows.

Before you flush the heater core. I would check your thermostat first. Does your temp gadge goes up or stay the same while driving? if it does it's your thermostat.

Jan 21, 2009 | 1985 Toyota Tercel

1 Answer

Blower motor works, not pumping heat.



  1. Disconnect battery ground cable.
  2. Remove glove box and door as an assembly.
  3. Disconnect the respective cable clip and disconnect the cable from door.
  4. Remove the cable retaining screw, then, while holding the cable with pliers, rotate the mounting tab on the cable to lengthen or shorten cable. Avoid pinching cable too tightly as damage to the cable will result.
  5. Reverse procedure to install.

  1. Remove glove box, then loosen cable attaching screw at the selector duct assembly.
  2. Make sure the cable is installed in the bracket on the selector duct assembly, then place temperature lever in ``Cold'' position and hold while tightening cable attaching screw.

Dec 17, 2008 | 1985 Chevrolet K1500

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