Question about 1991 Toyota Pickup

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No heat on my toyota pickup 1991

Replaced thermostat, blow the core heater both hoses are hot on a valve, still i wont get any heat, help me.

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Posted on Jan 18, 2013


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Posted on Jan 02, 2017

  • 241 Answers

SOURCE: my 2001 toyota tundra heater wont blow hot air. I

If you've changed the coolant recently, it could be air locked in the heater core. To remove park the truck with the front higher than the back and remove the radiator cap. Start the engine and let it run while watching for a big air bubble burp coming out the radiator neck. Top off the coolant and continue.

Posted on Nov 18, 2009

  • 11 Answers

SOURCE: i have a 91 toyota truck the heat wont get warm

the heater rad under the dash is gone had this problem before

Posted on Oct 20, 2009

  • 290 Answers

SOURCE: No heat/defrost 01 corolla

Sounds like you have air trapped in the heater core when you flushed the heater core. loosen the upper most heater core hose and run the engine untill coolant seeps out. Wait until the coolant has reached running temperature.

Posted on Jan 18, 2010

  • 454 Answers

SOURCE: 1991 Toyota Pickup 22RE overheats when the heater

Hello, sandlapperh and thank you for asking your question on Fixya!

Here is a simple process that will walk you through a few steps that will pinpoint the overheating problem on your
1991 Toyota Pickup, without even using any tools. It has helped millions of people, and I am certain that it will help you, because I wrote it for people in your exact situation.
How to diagnose your overheating
1991 Toyota Pickup

Get more great money saving tips and tricks about your vehicle from:

Thanks for the vote, and good luck!

Posted on Jan 13, 2011

  • 978 Answers

SOURCE: 1994 Toyota pickup / 4WD

you could try running engine and open top heater core hose highest point should bleed it fully, failing that look at manual should tell how much water is in system

Posted on Feb 01, 2011

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I was driving my 1991 toyota pickup when it started to overheat i let it sit and cool down then drove it home stopping evertime it got to hot i looked under the hood and found the alternator belt broke I...

Check and top up the coolant level. When an engine heats up fast and there is no heat from the heater it is low enough on coolant that it doesn't circulate through the heater core. Hope this helps.

Sep 21, 2011 | 1991 Toyota Pickup

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Engine heats up but takes a long time for warm air to blow. Once working, the thermostat works fine. Sometimes, warm air starts to blow and then goes cooler.

low fluid level or heater control valve may need replace..check hoses going to heater core...if cold...between heater control valve and heater core..replace control valve

Jan 11, 2011 | 2003 Toyota Matrix

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My car is not having heat

did you check your coolant level?
does your water pump leaks?
is your thermostat a toyota or aftermarket?
Check temperature on both hoses that go into heater core they must be both hot about same temperature if not heater core may be pluged. you need to make sure there is no air pockets or you wont have heat, this may be a simptom cause by any of the above.
Another thing to check is the heater valve to see if it is opening but if both hoses are hot valve is ok.
Do this checks and write back with founds so I can help you further.

Jan 07, 2011 | 1993 Toyota Corolla

1 Answer

I'm have problems with my heater. I usually blow very hot air and has always been a good heater. Lateley, it still blow air but seems to be cooler. Could it just be the thermastat?

First,check coolant level in radiator,if it is low you will have colder air on heat mode! Replenish as needed and in reservoir as well.Drive and test! Change the water thermostat if this doesnt help! Check water valve next,at the heater core inlet hose! The hose going in should be hot, and the hose comming out also,but not as hot. Check to see if the water valve functions or moves when you select heat from a/c mode! Is the vacumn line hooked up to the valve?

Sep 08, 2010 | 1997 Chevrolet S-10 Pickup

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My 2001 toyota tundra heater wont blow hot air. I checked to see if the heater core is cloged it seems fine the heater control valve is operating properly, and I changed the thermastat. and yet the heater...

If you've changed the coolant recently, it could be air locked in the heater core. To remove park the truck with the front higher than the back and remove the radiator cap. Start the engine and let it run while watching for a big air bubble burp coming out the radiator neck. Top off the coolant and continue.

Nov 12, 2009 | 2001 Toyota Tundra

1 Answer

I have 91 toyota pickup truck and the heater blows cold air i have replaced the thermostat and has plenty of antifreeze. please let me know if you have any suggestions

The first thing I would check is the heater control valve. This valve opens when you turn the inside control to heat and allows hot coolant to enter the heater core. If coolant doesn't enter the core, you don't have heat.

This valve is usually located under the hood behind the engine up close to the firewall. It will have coolant hoses attached to it. There should be an arm on the valve with a cable from inside the vehicle attached to it. This cable causes the arm to move, opening and closing the valve. Have someone inside move the heater control and watch this valve for movement.

During the warmer months, this valve is not being opened and closed, and it can get stuck. Moving the arm a few times will probably get it working again.

Oct 20, 2009 | 1991 Toyota Pickup

1 Answer

Toyota dyna 1988 double cab ute heater not hot

check to see if your coolant is full, if it isnt fill it first, then check to see if your thermostat opens properly by feeling both heater core hoses after engine warm up....both hoses should be hot.......if not, a stuck thermotat or plugged heater core is the problem
...good luck,,,marty

May 22, 2009 | 1988 Toyota Pickup

1 Answer

Heater only blows warm air.

The hoses from your heater core should be very hot to the touch. Check the hoses going to the core from the water pump. It should be very hot. The return hose should also be very hot. Now check the hoses going to the core. If they are not the same temp, then your heater control valve is not working correctly or the vacuum is not working. At any rate, locate the vacuum line going to the heater valve. Remove the silver bar on the valve from the plastic plunger arm. You will have heat all the time now if it was only a vacuum problem. You can fix it later when it's warmer out. BTW a 200* thermostat will make your heater even hotter.

Nov 21, 2008 | 1998 Jeep Cherokee

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