HEATER CORE REPLACEMENT!

The core is behind the pass side dash,whole dashboard has
to be removed then the heater module in order to replace the core.

if they have replaced it 3 times and still can't get the leak stopped
A. It not the heater core something else is leaking

B. there using a used heater core (which is my opinion is plain . . stupid)
C. the mechanic has no idea what he doing
First thing they should have done when car was brought in the 1st time was check for other leaks if it is the heater core still leaking the mechanic is installing it wrong or not geting hoses tight. the actual changing of the heater core takes only about 10 minutes and actually a easy process that anyone could do. What takes the most time is getting to the heater core because the majorly of the time the whole dash has to come out which takes hours

I would take your car somewhere else and have it fixed right and have them bill the dealership for the repairs

It appears that you have a blown headgasket, a failing water pump, or a cracked block.

There is also the possibility of a freeze plug failing & leaking there.

You can bypass the heater core until you are sure your engine problems are corrected so as not to damage it from excessive pressure.

You'll need to reassemble everything and pressure test the system instead of starting the engine, to see where the leaks are.

Good luck !

Hi and welcome to FixYa!

It may take 2hours the most to replace the heater core.

Hope this helps and thank you for using Fixya! Have a good one!

sounds like either the antifreeze solution is to strong [ shouldn't be more then a 70% mixture ] or the heater core is plugged [ some "stop leak" products will cause this.

Not a bad gasket, as there is no gasket. The heater core has developed a small leak and needs to be replaced or repaired. This is a big job, as the entire dash has to come out of the Jeep. The cost of the part is $77 at autozone, but the labor is several hours at a good shop. We have the procedure and can send it if you would like to do this job yourself. Just let me know.

You more then likly have a cloged heater core It looks and works just like your radiator but its smaller and its inside the truck under the dash board Check to see what your antifreeze looks like if its brown and rusty looking its probably the core You can disconnect the two 5/8 ths hoses from it out side on the fire wall get a couple of feet of heater hose cut it in half so you have two peices about a foot longplug them on the heater core then take a garden hose with a nozzle on it and try forceing water back and forth from one side to the other through the core this may claer the restriction out It dosen;t work every time but the alturnitive is to replace the core and on most vehicles this not an easy job although it may not be that hard to get to on a wrangler hope this helps

Hi:
You most likely have a partially blocked heater core, and at least it isn't leaking on the floor.

You might have sucess in trying to flush your cooling system, but often you end up replacing the heater core to fix the problem. Other possibilities are blockage of the air inlet on your heating system by leaves or other debris, but not likely in this case if you still have good air flow, but just not hot air.

TAKE IT BACK THEY HAVE LEFT A LINK OR POWER FEED LOOSE

Heater core nozzle is broken off and you will need to replace heater core most likely.