Heater Core Replacement
I have a 97 K1500 and the heater core is leaking and spilling radiator fluid in to the passenger side of the truck. Does anybody know how to remove the heater core and replace it without taking the dash off? Or know how to take the HVAC box out? Thanks
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RE: Heater Core Replacement
the core CAN be removed by taking the lower pan off the box...but the recomended way is to pull the dash and remoive the box
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RE: Heater Core Replacement
I unscrewed all of the lower pan screws but cant figure out how to get the whole lower pan off. It seems to be connected to the firewall. Any suggestions?
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RE: Heater Core Replacement
make sure ALL the screws are out..1 is close to impossible...over near the hump...between the box and the firewall..another in the center,recessed in that hole..
there is also a drain boot (if its not fallen off) outside pointing down you need to slip off |
RE: Heater Core Replacement
sweet i will give it a try thanks alot.
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RE: Heater Core Replacement
laxstyle1: Hows it coming along? Any luck getting to it from the pan?
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RE: Heater Core Replacement
its a real bitch..that 1 screw is close to impossible...but its done that way a lot
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RE: Heater Core Replacement
I already had mine off when I replaced the cabin filter, I had to use two little universals and a lot of patience. But after I got it out I just left it out. How bad is it after the pan is removed?
Argon: Did you see my other post? My heater isn't very hot but its not the blend door. Should I flush the system out first, or just repalce the core? |
RE: Heater Core Replacement
that 97 is completely diffrrent than your 99 with cabin filters...your core CAN NOT be done without box removal.
your core..check both hoses gong into it under the hood..are they both hot?..1 cool,1 warm? |
RE: Heater Core Replacement
Somebody once told me that putting a 180 or 160 degree t-stat in would sometimes make the heaters take longer to heat up and not produce as warm of air. Not saying thats the problem but its an option I think or at least from the info Ive gotten!
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RE: Heater Core Replacement
No, tx_cowboy911, I think you are right. I did like Argon said and felt the two lines running into the heater core when I got home from work. They were both hot. I think that I just forgot how long it took to warm up this past week since the weather has been warm lately. Then when it got cold again I didn't realize how long it took to warm up. Well I am glad I didn't go with a 160 stat.
I think I will flush the cooling system out in the fall anyway to be safe. By then I'll have around 90K or so on the clock anyways. Thanks tx_cowboy and Argon for your input! |
RE: Heater Core Replacement
yeah definetly did not have to take the whole dash off, wasnt too bad of a job the hardest part was getting the clamps off the radiator hoses. Thanks for all the help.
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