Does anyone have pictures of the stock routing location for the heater lines that go from the thermostat to the heater core. I have a 92, AT, AC. Sometime in the past those lines have been replaced but they are not in the stock location. Where they are routed now its a PITA to change the oil filter.
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Heater line routing
- Thread starter karstic
- Start date
- Location
- 29°58'28.9"N 99°15'15.5"W
They should just run from the heater core along the side of the valve cover between the air cond. and the valve cover and into the T-stat housing. If it hangs down by the oil filter, the hose is waaaaaaaaay too long.
martin
NAXJA Forum User
- Location
- Huntsville, AL
The best thing to do is look at an XJ with the open cooling system. If you can not find another XJ to look at then you may need to buy new hoses.
I found on my 88 XJ that the aftermarket hoses were close but not correct. I used them for a couple of years then broke down and purchased new ones from the dealer, so I knew they were the right length and shape.
With the right hoses and a drawing of how to hook up the heater control valve you should have no problems. You can look at this site to see the valve hook-ups http://www.off-road.com/jeep/cherokee/98/12_dec/radiator/radiator.html
While you are chaning hoses you may want to flush the heater core, follow this and you will have good results. I used hot water and a 5/8 hose to bring the water to the vehicle. If you don't have a laundry sink to hook up to then you could hook the hose to the hot water connector for your clothes washer. Also collect the water in a bucket then you can judge if you have gone from brown to clear. http://www.olypen.com/craigh/heater.htm
I found on my 88 XJ that the aftermarket hoses were close but not correct. I used them for a couple of years then broke down and purchased new ones from the dealer, so I knew they were the right length and shape.
With the right hoses and a drawing of how to hook up the heater control valve you should have no problems. You can look at this site to see the valve hook-ups http://www.off-road.com/jeep/cherokee/98/12_dec/radiator/radiator.html
While you are chaning hoses you may want to flush the heater core, follow this and you will have good results. I used hot water and a 5/8 hose to bring the water to the vehicle. If you don't have a laundry sink to hook up to then you could hook the hose to the hot water connector for your clothes washer. Also collect the water in a bucket then you can judge if you have gone from brown to clear. http://www.olypen.com/craigh/heater.htm
AZ Jeff
NAXJA Forum User
- Location
- Gilbert, Arizona
I have a 1992, and the hoses run per FSM (OEM) pattern. Here is what mine has:
From nipple on thermostat housing, UPPER HOSE runs along valve cover to UPPER inlet on heater control valve.
LOWER HOSE runs from nipple on water pump to LOWER inlet on heater control valve.
From UPPER OUTLET on heater control valve, hose runs to LOWER nipple on heater core.
From LOWER OUTLET on heater control valve, hose runs to UPPER nipple on heater core.
From nipple on thermostat housing, UPPER HOSE runs along valve cover to UPPER inlet on heater control valve.
LOWER HOSE runs from nipple on water pump to LOWER inlet on heater control valve.
From UPPER OUTLET on heater control valve, hose runs to LOWER nipple on heater core.
From LOWER OUTLET on heater control valve, hose runs to UPPER nipple on heater core.
