Thread: Heater core

can of harden up and a jumper.

you have to pull the dash out of the rangies to get to the heater core...

not much fun and as always, on an older vehicle plastic things in the dash WILL break and will need replacing..

So she's a write off then? There is no cheapish way out... Pay or freeze?

I put stop leak in my radiator, now the lever between the hot/cold is stuck. It takes a huge amount of effort (all my strength) to move it. Is this conincidence or has the stop leak glued together the switcher?
I hope I'm not up for replacing my heater core also..

yep, the stop leak has effectively welded the shaft for the valve to the housing.

Originally Posted by rage rover

So she's a write off then? There is no cheapish way out... Pay or freeze?

No cheapish way I can think of and its a PITA job, not suprised its 2k.
you can buy little 12v cab heaters but im not sure how effective they are

Mmm gotta research this more. It's a great bus now and it owes me nothing, might be on the cards

You could always move to the North West WA. Won't need the heater then.

Originally Posted by happykid55

I put stop leak in my radiator, now the lever between the hot/cold is stuck. It takes a huge amount of effort (all my strength) to move it. Is this conincidence or has the stop leak glued together the switcher?
I hope I'm not up for replacing my heater core also..

I just rebuilt my 1990 version and assuming similar basic operation, the hot/cold lever just moves an air flap inside the casing, allowing more or less air to pass through the core and into the cabin. There isn't a conventional heater tap to turn the coolant water on/off - it's always flowing through the heater core.

If the hot/cold lever is stuck perhaps you've got a leak in the heater core that has sprayed all over the place and gummed up the pivots for the flap or stuck it's edges to the housing; then the stop-leak has plugged the leak (assuming you had/have one).

I'd get the heater core changed or you'll likely end up with all the coolant in the footwells and an overheated engine. It is a PITA to do but if you can take the truck off the road for a while, take it slow and you'll get it sorted for hundreds instead of thousands.

cheers,

bidds