rear heater?

[sportbiker929]

it blows but does not get hot.

Any ideas?

Mitch

 

[zebrabeefj40]

Take the covers off and clean the junk off the fins. Or look under the hood and see if the lines are even connected. Often the lines under the truck will rust and leak. Then they get bypassed instead of repaired. So you might not be getting hot water to the heater to make it hot.

Nick

 

[High Desert]

Take the top off the heater and make sure the lever that works the valve (on the rear heater) is connected and that the valve moves when worked.

Under the rig where the metal line goes to rubber to turn up into the floor. sometimes those metal lines get crushed by the hose clamp. Mine were crushed on the heater side. so it restricted the flow OUT of the heater. Mine was leaking under pressure and blowing a line of coolant up into the heater. I thought it was leaking from the core,I took it in to the radiator shop and the guys showed me the warped fitting... rounded it out and all is fine, (except it took a long time to burp the thing out.

Which of course could be your problem too.. air in the line. Mine just worked out by over flowing the reserve tank until the air burped out. I think you can just leave tha radiator cap off and run it in the drive way with the heaters on and it will burp out that war...I think? In fact I'll bet that's your problem..air

hd

HD

 

[lovetoski]

Burping works best if the front of the truck is up higher than the rear - for example, park on a hill while you let it idle (with cap off).

 

[cdngearhead]

mine has the same problem, kids are whining, hopefully just needs a burp, probally cause i had the head off the motor

 

[sportbiker929]

well I figured it out. I found the lever on the rear heater, you know the one that says up for heat.


DUH!
\
Thanks