Heater Problems

Hi I have a 1999 jeep Cherokee sport xj It was blowing Luke warm air so I did a heater core flush and was running my heater this morning and its still not very warm I flushed about 2 gallons of water through with a garden hose if that helps thanks!

Let the engine warm up then feel the hoses going to the heater core, are they hot?

Do you have a temperature gauge on your dash? What does it show

Yes I just replaced the thermostat with a 195 and I'm running about 200 and yes both hoses are hot.

if the coolant is hot and the heater core isn't obstructed then the problem is in the dash area, probably the blend door is not closing or blower motor is obstructed or underpowered

Sorry Not to familiar with heaters my blend doors do what and were are are they located and i have a good amount of air coming through so i dont think it is my blower.

Basically you have the blower motor that draws in outside air (or recircs cabin air) and blows it through the ducting in the dashboard. Inside the dash is the heater core (hot) and the AC evaporator (cold), and a blend door that directs air from the blower through one or both of them as you move the temperature slider back and forth. So if you want cold air, the blend door directs air through the AC evaporator, if you want hot air the blend door directs air through the heater core. If the blend door stops working (broken cable or actuator or whatever) then you lose control over hot/cold.

You have heat in the core? Check the hoses, if the return hose is hot then coolant is flowing through the heater core so its not obstructed.

You have air from the blower? If you feel good volume then that is working

Probably the blend door

Thankyou for the help i will check that out if not what do you think on the crl heater core flush?