Just replaced leaking radiator in my 2001 Grand Cherokee,I can hear antifreeze running through the heater core,heat works fine on # 2 fan setting anything higher air starts to cool,got to be the heater core right?

A QUICK FIX FOR A DAMAGE HEATER CORE?
TO REPLACE A HEATER CORE IT COST ABOUT $700..
THE COMPLETE DASHBOARD HAVE TO BE REMOVE...

BUT IM HERE TO SPARE YOU OF $700 FOR NOW.

I WILL GIVE YOU THE BEST AND QUICK AND CHEAPEST SOLUTION TO GET YOUR CAR ON THE ROAD... ASAP, A $20 FIX..

DO IT YOURSELF AND SAVE THE TOWING TO MECHANIC.

THE BAD (YOUR HEATER WILL NOT WORK).. YOUR FAN AND AC WILL WORK FINE, JUST NO HEAT. (SOLUTION>)GET A PORTABLE HEATER THAT CONNECT TO YOUR LIGHTER UNTIL YOU GET THE CASH TO PAY $700+

A HEATER CORE IS THE LITTLE RADIATOR UNDER YOUR DASH, THAT RECEIVE ANTIFREEZE FROM THE BIG RADIATOR IN FRONT OF THE ENGINE, THAT GIVES YOU HEAT DURING COLD WEATHER.

FROM THE BIG RADIATOR THERE IS 2 LITTLE HOSES THAT ATTACHES TO THE HEATER CORE, LOOK FOR IT NEAR THE BRAKE SYSTEM IN BACK OF THE ENGINE COMPARTMENT ON THE PANEL OF THE CAR. (2 RUBBER HOSES.. (SEE PIC BELOW FOR SAMPLE)

THEY WILL HAVE 2 CLAMPS, WITH REGULAR HAND TOOLS, YOU
WOULD BE ABLE TO REMOVE BOTH HOSES, ONCE YOU REMOVE THEM..
BUY A SMALL METAL TUBE IN THE SHAPE OF A (U)
AND CONNECT BOTH HOSES TO EACH OTHER, AND PLACE BOTH BRACKETS OR CLAMPS TIGHTLY FOR NO LEAKS.

ITS A 10 MIN JOB.

REMOVING BOTH HOSES FROM THE HEATER CORE AND RE-ATTACHING THEM TOGETHER, ALL YOU DOING ITS ELIMINATING THE HEATER CORE COMPLETELY, THAT'S LOCATED UNDER THE DASH FOR HEATING SUPPORT.

IF YOUR HEATER CORE WAS LEAKING ANTIFREEZE INSIDE YOUR CAR, IT WILL STOP LEAKING ONCE YOU DISCONECT THE 2 HOSES FROM OUTSIDE ENGINE COMPARTMENT, THERE WILL BE NO MORE ANTIFREEZE GOING INTO YOUR HEATER CORE SINCE YOU WILL BYPASS THE HEATER CORE.

ONCE YOU CONNECT BOTH HOSES TOGETHER, THE ANTIFREEZE WILL CIRCULATE BACK TO THE FRONT RADIATOR AND NO OVER HEATING AND NO LEAKING INSIDE YOUR CAR MO MORE. YOUR CAR WILL DRIVE FINE, YOUR AC AND FAN WILL WORK THE SAME...SO LONG THAT WAS THE ONLY PROBLEM.

THIS THE MOST AFFORDABLE AND QUICKEST SOLUTION TO GET BACK ON THE ROAD ASAP.

LEAVE ME YOUR FEEDBACK.

GOOD LUCK

THANKS
MR: MASTER QUICK SOLUTION

SOUND LIKE HEAT CORES LEAKING ANTIFREEZE INSIDE DASH.

Your heater core is leaking. The heater core on your 2001 Jeep Cherokee is responsible for providing heat in the cab of your Jeep. Overtime, he heater core can become plugged with dust or corrosion and stop working causing it to leak. The heater core is linked with the antifreeze that runs in the radiator in turn draws heat from the engine and than uses that heat to warm up the car. Most heater cores are located under the dash on the passenger side. Here is a link for how locate and remove the heater core. http://www.ehow.com/how_5332477_remove-jeep-cherokee-heater-core.html

Good luck! :)

A QUICK FIX TO FOR A DAMAGE HEATER CORE? TO REPLACE A HEATER CORE COST ABOUT $700.. SINCE YOU HAVE TO REMOVE THE COMPLETE DASHBOARD...
BUT IM HERE TO SPARE YOU OF $700 FOR NOW.

I WILL GIVE YOU THE BEST QUICK, CHEAPEST SOLUTION TO GET YOUR CAR ON THE ROAD... ASAP, A $20 FIX..
DO IT YOURSELF AND SAVE THE TOWING TO MECHANIC.

THE BAD (YOUR HEATER WILL NOT WORK).. YOUR FAN AND AC WILL WORK FINE, JUST NO HEAT. (SOLUTION>)GET A PORTABLE HEATER THAT CONNECT TO YOUR LIGHTER UNTIL YOU GET THE CASH TO PAY $700+

A HEATER CORE IS THE LITTLE RADIATOR THAT RECEIVE ANTIFREEZE FROM THE BIG RADIATOR IN FRONT OF ENGINE, TO GIVE YOU HEAT DURING COLD WEATHER.

FROM THE BIG RADIATOR THERE IS 2 LITTLE HOSES THAT ATTACH TO THE HEATER CORE, LOOK FOR IT, NEAR THE BRAKE SYSTEM IN BACK OF THE ENGINE COMPARTMENT.

THEY WILL HAVE 2 CLAMPS, WITH REG HAND TOOL YOU
COULD REMOVEM BOTH HOSES, ONCE YOU REMOVE THEM..
BUY A SMALL HARD TUBE IN THE SHAPE OF A (U)
AND CONNECT BOTH HOSES TO EACH OTHER, AND PLACE BOTH BRAKET OR CLAMPS TIGHTLY FOR NO LEAKS.

A 10 MIN JOB.

BUY DOING THIS, ALL YOU DOING IS ELIMINATING THE HEATER CORE THAT IS LOCATED UNDER THE DASH FOR HEATING SUPPORT. IF YOUR HEATER CORE WAS LEAKING ANTIFREEZE INSIDE YOUR CAR, IT WILL STOP LEAKING, SINCE NO MORE LIQUID IS GOING INTO YOUR HEATER CORE SINCE YOU BYPASS THE HEATER CORE.

ONCE YOU CONNECT BOTH HOSES TOGETHER, THE ANTIFREEZE WILL CIRCULATE BACK TO THE FRONT RADIATOR AND NO OVER HEATING AND YOUR CAR WILL DRIVE FINE, SO LONG THAT WAS THE PROBLEM.

QUICK SOLUTION TO GET BACK ON THE ROAD.

LEAVE ME YOUR FEEDBACK.

GOOD LUCK

THANKS
MR: MASTER QUICK SOLUTION

SEE PICS: http://www.denlorstools.com/shop/wpimages/Heater_Hoses_at_Firewall.jpg

the oily substance you talk about is antifreeze, your heater core is damaged and leaking in the form of mist and going to your windshield you must replace your heater core in the dash generally behind the glove box.

Could be anything,check for a bad water pump,it happens,it maybe defected,or a hose,find the leak first.

Make sure the fan control module has not failed. They tend to do this on Chrysler products. Mine did on my '03 Jeep GC at about 48k miles..

Sounds to me like the heater core is leaking again. If you're smelling antifreeze and the window fogs up then you're getting coolant into the heating system. Most likely cause is leaking hose to heater core or the heater core it's self.

your heater core is leaking its not fog on your windows its from the antifreeze having same problem so im replacing it myself but having problems getting the dash off its a head ache the heater core costs 91.99 at autozone i priced the job at a few shops and it runs between 7 and 900 dollars.good luck man

Aside from flushing the radiator and heater core andreplacing your hoses, did you happen to replace your thermostat. Sounds to me like that's your problem if everything else seems to be in order. If you change the thermostat and still have no heat, you might check your vacuum lines running to the back of your heater controls inside your dash. That's really the only other thing that I believe could be causing your lack of heat.

Hope this helps! Have a great day and try to stay warm!