1999 Mercury Sable Heat System

BAY

MEMBER
1999 MERCURY SABLE

Heater problem
1999 Mercury Sable 6 cyl Front Wheel Drive 165000 miles

I just replaced the leaking Antifreeze Reservoir and noticed that the heating hose along the firewall was cut and plugged at each end. Also, it seems to take a fair bit of time before I actuall get heat and then it doesn't seem to be as hot as it should be. Is the cut/separation of the hose related to this. Why would it be cut and plugged in the first place. (Obviously this was a used car when I bought it.)

2 Replies

2CARPRO JACK

MECHANIC
11,533 POSTS

Most likely they looped the heater hoses due to a leaking heater core. This is due to the fact that the entire dash has to come out of the car to replace it, very expensive and time consuming repair

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Wednesday, February 11th, 2009 AT 4:19 PM

BRAVESTAR1

MECHANIC
234 POSTS

The problem with not fixing a leaking Heater Core is, eventually it will fail entirely and leak antifreeze into the car's interior which is a smelly and time consuming process to clean up.

If you plan on continuing to drive this car, and live in a relatively cold climate, then it's worth it to have the heater core replaced, and then you'll not only have heat, but a well functioning cooling system.