inside heathing

Greetings from Portugal,
i have a ZJ from 98
In the other day I changed the cooling liquid from the engine and since then I dont have heating inside of the car, just came coold wind; How i purge the system?

thanks

Make sure your coolant is filling the radiator. Run the Jeep with the radiator cap off. Fill the radiator with coolant / water mixture until it is full. Also check your thermostat. If this doesn't work have the cooling system power flushed at a shop. If this doesn't work you will probably have to replace the heater core.

Make sure your coolant is filling the radiator. Run the Jeep with the radiator cap off. Fill the radiator with coolant / water mixture until it is full. Also check your thermostat. If this doesn't work have the cooling system power flushed at a shop. If this doesn't work you will probably have to replace the heater core.


Hi Legalfee,
Ok I have the radiator filled and the water deposit also, the thermostat you are talking about is the inside of the car? Because the engine temperatur its ok. What you mean by heater core!

Thank you

You didn't say what engine you have. This procedure for thermostat replacement is for the 4.0L: http://www.autozone.com/az/cds/en_us/0900823d/80/15/20/b1/0900823d801520b1/repairInfoPages.htm

The heater core is under the dash on the passenger side.

You didn't say what engine you have. This procedure for thermostat replacement is for the 4.0L: http://www.autozone.com/az/cds/en_us/0900823d/80/15/20/b1/0900823d801520b1/repairInfoPages.htm

The heater core is under the dash on the passenger side.

Hi agen,
My mistake, the engine is 2.5 Turbo Diesel,
on the link that you posted seems to me that they are replacing the thermostat engine, is not it?

thanks

No matter what the engine is if you follow the top radiator hose there should be a water inlet on top of the engine. The inlet should be held on by two bolts. Typhically you remove the hose, the two bolts, and the thermostat is in the inlet. You replace the thermostat, put on a new gasket and sealer and replace everything.

I am confused, as is that thermostat influences the entry of hot air in the passenger side!?

This explains how a automobile cooling system works: http://www.familycar.com/Classroom/CoolingSystem.htm

I am confused, as is that thermostat influences the entry of hot air in the passenger side!?
Do you have heat on the drivers side and not on the passenger side?

Do you have heat on the drivers side and not on the passenger side?

Hi,
Without heating in both places.