Heater core

[ktmrider]

Can the heater core leak and not fill the floorboard? I have a persistent coolant leak that I can't find and the heat is weak and nonexistent at idle.

 

[RenKJ]

How are engine temps? Have you checked the seal around the water pump?

 

[ktmrider]

How are engine temps? Have you checked the seal around the water pump?

Temps are normal, as long as the right amount of coolant is in the system. Water pump was replaced about a year ago, radiator this summer. I'm running out of options. Believe me I desperately want it to anything but the core.

 

[M38 Bob]

Believe me I desperately want it to anything but the core.

Be VERY careful what you wish for!

Bob

 

[Chitownjohnny]

The upper left side of the radiator is prone to leaking the driver side top if your looking at it from the front. Check it under running temp and see if you smell something or see something.

 

[jeeptorino68]

another sign (and what i am going through) the windows are always fogged up, and it smells like coolant inside the jeep when the heat is on.
this tells me it is the heater core. do you have these issues as well?
some good info here:
http://www.jeepkj.com/forum/f196/replacing-heater-core-56432/

 

[Hockeygoon]

Be VERY careful what you wish for!

Bob

Agreed. A cracked block will make you heater core worries go away.

 

[ktmrider]

Agreed. A cracked block will make you heater core worries go away.

Agreed!! Well I have taken the easy way out and poured some Bar's into the system and crossed my fingers.

 

[jeeptorino68]

im diving in to replace the heater core.
coolant drips out of the drain tube from the heaterbox (normally just for condensation from the AC

any other tips or things to look for or replace while i am in there?

 

[jeeptorino68]

my writeup (partially complete 1/4/16) maybe has some useful info for people in the future
http://www.jeepkj.com/forum/f202/how-heater-core-replacement-59360/#post676777