jeep heater problem..

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Sep 16, 2010 | 01:29 PM

majormatt125

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Joined: Sep 2010

Posts: 217

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From: russell kansas

Year: 1993

Model: Cherokee

Engine: 4.0 inline 6

jeep heater problem..

i noticed this morning thaT MY heater wasnt working but i was runiing around 200 degrees. so i went and drove it and it started working but stopped again when i stopped? any sugjestions?

Sep 16, 2010 | 01:56 PM

mcssls

Seasoned Member

Joined: Nov 2009

Posts: 421

Likes: 1

From: Rio Rancho NM

Year: 1996

Model: Cherokee

Engine: 4.0

bad thermostat or that control valve in your heater hose isn't working right.

Sep 17, 2010 | 10:49 AM

majormatt125

Thread Starter

Member

Joined: Sep 2010

Posts: 217

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From: russell kansas

Year: 1993

Model: Cherokee

Engine: 4.0 inline 6

dont have a control valve and ther is new

Sep 17, 2010 | 11:05 AM

djb383

CF Veteran

Joined: Nov 2009

Posts: 8,172

Likes: 17

From: The Republic of TEXAS

Year: 1998

Model: Cherokee

Engine: 4.0L HO

If coolant is 200F, that's plenty hot for a good heater so t-stat is not the issue. Heater core could be plugged, restriction in heater hose(s), water pump could be weak or a combo.

Last edited by djb383; Sep 17, 2010 at 11:09 AM.