heat doesnt work
heat doesnt work
its gettin to be a bit cold old and my heater hasnt been working. i dont know what to do about it. i think its either the thermostat or heater core but i dont know how to check. any tips or other ideas?
Legend
Joined: Jul 2011
Posts: 8,259
Likes: 4
From: Austin, TX
Does engine get warm enough? What does gauge read after it has run for a while?
If stat is stuck open, the engine may not be heating up enough. If it is stuck closed, you would be overheating.
Have you recently changed coolant? If so, there could be air trapped in system. You need to have nose of truck raised and running and heater turned on, and make sure it is full so air bubble will flow out.
Check behind heater/ac controls to make sure everything is connected. If bypass door does not operate correctly, it cannot divert air through heater core.
Is the carpet on pass side getting wet or do you smell coolant from insde the cab? If so, this is a sign that core is bad.
If stat is stuck open, the engine may not be heating up enough. If it is stuck closed, you would be overheating.
Have you recently changed coolant? If so, there could be air trapped in system. You need to have nose of truck raised and running and heater turned on, and make sure it is full so air bubble will flow out.
Check behind heater/ac controls to make sure everything is connected. If bypass door does not operate correctly, it cannot divert air through heater core.
Is the carpet on pass side getting wet or do you smell coolant from insde the cab? If so, this is a sign that core is bad.
Does engine get warm enough? What does gauge read after it has run for a while?
If stat is stuck open, the engine may not be heating up enough. If it is stuck closed, you would be overheating.
Have you recently changed coolant? If so, there could be air trapped in system. You need to have nose of truck raised and running and heater turned on, and make sure it is full so air bubble will flow out.
Check behind heater/ac controls to make sure everything is connected. If bypass door does not operate correctly, it cannot divert air through heater core.
Is the carpet on pass side getting wet or do you smell coolant from insde the cab? If so, this is a sign that core is bad.
If stat is stuck open, the engine may not be heating up enough. If it is stuck closed, you would be overheating.
Have you recently changed coolant? If so, there could be air trapped in system. You need to have nose of truck raised and running and heater turned on, and make sure it is full so air bubble will flow out.
Check behind heater/ac controls to make sure everything is connected. If bypass door does not operate correctly, it cannot divert air through heater core.
Is the carpet on pass side getting wet or do you smell coolant from insde the cab? If so, this is a sign that core is bad.
it gets to 210 degrees and stays there which is what its supposed to be
no i havnt changes coolant recently
carpet doesnt get wet and i cant smell coolant in the cab
as for connections ill check those this weekend
Legend
Joined: Jul 2011
Posts: 8,259
Likes: 4
From: Austin, TX
So stat appears to be working, and heater core is not leaking, and it is probably not air trapped in system.
Hopefully you can find a connection loose. Also remove glove box and look at heater door behind there. Check for connections there also.
Do you have the service manual? If not, you can download from the FAQ/DIY section. Troubleshooting detailed pretty well in there for connections both vacuum and electrical.
Hopefully you can find a connection loose. Also remove glove box and look at heater door behind there. Check for connections there also.
Do you have the service manual? If not, you can download from the FAQ/DIY section. Troubleshooting detailed pretty well in there for connections both vacuum and electrical.