1999 Dodge Durango heater core

USUALLY THE HEATER CORE "FEEDS" FROM THE BOTTOM AND FLOWS UPWARD BEFORE IT EXITS OUT OF THE TOP CONNECTION

SEE THE DIAGRAM I INSTALLED AT THE BOTTOM

AS FAR AS THE SMOKE/ SMELL

THIS IS PROBABLY MR. HEATER CORE DONE SPRUNG A LEAK

(THIS MAY BE WHY IT WAS ALL BYPASSED OFF)

OR MAYBE YOUR HOSE CONNECTIONS TO IT ARE DRIBBLING AND GETTING RADIATOR JUICE ON IT

IT MIGHT BE THAT YOU MUST SPEND MANY HOURS AND TEARING YOUR DASH APART JUST TO GET TO IT, TO REPLACE IT

MAYBE YOU HAVE ONE OTHER "GET BY" OPTION, INSTEAD OF REPLACEMENT

WITH THE SYSTEM ALL HOOKED UP CORRECTLY AND READY TO RUN, INSTALL A BOTTLE OF ALUMINUM "STOP LEAK" ("BARS" IS ONE MFG) THIS STUFF LOOKS LIKE SILVER GLITTER IN A LIQUID. FOLLOW THE DIRECTIONS AND YOU MIGHT GAIN A LITTLE MORE TIME!

WHATCHU THINK?

THE MEDIC

I DO NOT recommend installing ay kind of sealer in the system. There is no such thing as "Mechanic in a Can". The only one that benefits from those additives are the people that sold it to you. All you will accomplish is plugging up both your heater core and your radiator.

If your heater core is leaking, your only options are to either replace the core and repair it properly or simply bypass the core and live without heat.