1991 Chrysler New Yorker foggy Windows

Tiny
ASHAPARK
  • MEMBER
  • 1991 CHRYSLER NEW YORKER
  • 3.3L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 999,999 MILES
Once the car heats up fog rolls into the windows. That's when the a/c and heat is on and off, facing the top, bottom and any other settings. It also smells like antifreeze. It is losing coolant but nothing on the floor boards. I was told it could be the heater core or the bypass hose. ANY IDEAS?
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Wednesday, January 1st, 2014 AT 10:59 PM

7 Replies

Tiny
WRENCHTECH
  • EXPERT
Sounds like the heater core is leaking.
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Thursday, January 2nd, 2014 AT 2:36 AM
Tiny
ASHAPARK
  • MEMBER
Wouldn't it leak on the floor boards?
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Thursday, January 2nd, 2014 AT 9:48 PM
Tiny
WRENCHTECH
  • EXPERT
No, not necessarily. It may be going out the condensation drain.

You should have the system pressure tested.
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Friday, January 3rd, 2014 AT 2:21 AM
Tiny
ASHAPARK
  • MEMBER
Do you have a diagram of how the get to the heater core? All the different panels in the dash?
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Wednesday, January 8th, 2014 AT 7:53 PM
Tiny
WRENCHTECH
  • EXPERT
The entire HVAC housing assembly has to be removed and disassembled.

The manufacturer has supplied written instructions only, no diagrams.

REMOVAL AND INSTALLATION

From inside the engine compartment, disconnect battery negative cable.
Discharge A/C refrigerant and disconnect lines at unit.
Drain radiator and disconnect heater hoses at unit Tape heater tubes to keep from leaking during removal.
Remove A/C condensate drain and disconnect vacuum lines.
Inside passenger compartment perform as follows:

Remove right upper and lower underpanel silencers.
Remove steering column cover.
Remove left underpanel silencer.

Position front seat or right front seat full rear.

Remove right cowl side trim.

Remove glove box.

Remove right instrument panel reinforcement.

Remove ash receiver.
Remove center distribution and defroster adapter ducts.
Disconnect relay module.
Disconnect blower motor wire connector.

12 Disconnect demister hoses from top of unit

For NonATC, disconnect the temperature control cable flag from the bottom of the heater- A/C unit and unclip the cable from the left side of the heat distribution duct Swing the cable out of the way to the left.
For NonATC, disconnect the vacuum lines at the unit.
For ATC, disconnect the instrument panel wiring from the rear face of the ATC unit.
Disconnect right 25way connector bracket and fuse block from panel.
From engine compartment, remove 4 unit attaching nuts.
Remove unit hanger strap lower screw, and rotate strap.
Move heater-A/C unit rearward to clear mounting studs and lower.
While pulling the lower right of instrument panel rearward:
Rotate unit while pulling from under instrument panel.

To install, reverse the preceding operation.
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Thursday, January 9th, 2014 AT 2:19 AM
Tiny
ASHAPARK
  • MEMBER
Ok thanks! I am how ever a young DIYer that's also a mother & work. So that is a bit too much Do It for this self by my self. Lol.
Is there a way to bypass the core without gutting it?
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Thursday, January 9th, 2014 AT 2:12 PM
Tiny
WRENCHTECH
  • EXPERT
Sure, that is easy. Just remove the 2 heater hoses at the firewall and rig a way to connect them together without kinking them. The parts stores have connectors to do that as the hoses may be 2 different sizes. Of course you realize that you will have no heat or defrost then.
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Thursday, January 9th, 2014 AT 2:29 PM

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