Heat not very hot? Help

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Nov 18, 2015 | 08:49 PM

#31

cruiser54

::CF Moderator::

Joined: Aug 2011

Posts: 43,971

Likes: 1,578

From: Prescott, Az

Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by 95Cherokee32s

Have you tried replacing your thermostat? I would also try replacing the heater control valve or bypassing it. If neither of those work then I'm not sure what your problem could be.

It's a 99 and has no heater control valve.

The fact that the radiator hose is hotter than the heater hoses does not indicate a faulty thermostat.

Dec 30, 2015 | 05:07 PM

#32

kmxj

Newbie

Joined: Jun 2009

Posts: 6

Likes: 0

From: Missouri

Year: 2000

Model: Cherokee

Engine: 4.0L

Quote:

Originally Posted by madmanmarty

Make sure to flush with water in both directions.
Blow out core.
Add CLR cleaner to core & let sit overnight.
Flush in both directions next day.
Your core should be clear.
If you are still not getting heat you have other issues.
If u have a heat temp check gun,u can check heater core flow by determining temp of each hose. If it's not pretty close u have a flow issue.

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Thanks! This was the simplest, straightforward, answer I found. It helped me out big time. I don't know why I wasn't thinking of the basics. Thanks again.