No heat or air

Tiny
MYRTLE REED
  • MEMBER
  • 2005 MERCURY MARQUIS
  • V8
  • 120,000 MILES
Blower works no heat or air.
Sunday, September 30th, 2018 AT 8:34 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,033 POSTS
Hello,

It sounds like you have a vacuum line that has broken under the hood that runs the HVAC system. Here is a guide to help you find and fix the problem:

https://www.2carpros.com/articles/air-vents-stay-in-the-defrost-position

and

https://www.2carpros.com/articles/car-heater-not-working

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

Cheers, Ken

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Sunday, September 30th, 2018 AT 12:13 PM

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