Lukewarm heat? It's blowing fine, just not warm.

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12-24-2008, 03:00 AM

#16

hubbazoot

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Location: Metro Denver, CO

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Year: 1987

Model: Cherokee

Engine: 4.0L

Quote:

Originally Posted by fivendime

Same here, I've only had mine for about 10 days, a Cherokee newbie I guess you could say. The valve is located on the passenger side near the back of the engine compartment. Its the contraption that the two heater box hoses go into from the front of the engine.

2:00 am and I'm working on my XJ. Now that's passion. I'll let you know what I find.
Wow, went out for a 'quick look,' couldn't find the goblin, and then I went for a 'short drive' to see if it was one of those problems that cured itself. Seem so. Now I'm back home.... 1h45 mins later...

Last edited by hubbazoot; 12-24-2008 at 04:55 AM.

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12-27-2008, 04:09 PM

#17

Rideski

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Year: 2001

Model: Cherokee

fwiw, I put a solvent in my coolling system and ran it for three days and about 150 miles; then flushed the heather core. It did open up the flow and have more heat now than I did.

Hoping this lasts a Winter or two before I have to replace core.

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01-05-2010, 10:31 PM

#18

auburn4193

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Model: Cherokee

I'm having the same problem with my '00 XJ with 129k miles.. flushed the radiator a couple months ago and replaced the stat with a 195 deg. thermostat. My heat is just barely warm and the higher the rpm's the warmer it seems to be so I'm praying the heater core is just clogged. I haven't been able to flush it because it's been below freezing here in alabama.