SPONSORED LINKS

2006 Mercury Marquis A/C comes out defroster and heater ven

Tiny
LEEW54
  • MEMBER
  • 2006 MERCURY MARQUIS
  • V8
  • 2WD
  • AUTOMATIC
  • 40,000 MILES
Had the blender (blunder?) Changed under warranty last year. Recently stepped on gas hard to pass and a/c began to blow from heater and defroster only. In the old days that would happen when a vacuum line came loose. Any idea?
Saturday, June 19th, 2010 AT 4:03 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,867 POSTS
Same thing as the old days. THe vents are actuated by vacuum. When you hit the gas, the vacuum pressure drops in the engine. If there is a leak, what you described happens. Check under the dash as well as under the hood for leaks.

Let me know what you find.

Joe
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Monday, June 21st, 2010 AT 11:51 PM

Please login or register to post a reply.

Related Defroster Content

Vents Stay in Defrost Mode
GUIDE
Vents Stay in Defrost Mode
Your car's defroster is designed to remove moisture (fog) from the inside of the windshield in cold weather. It can be a safety problem if the defroster is not working, or...
VIEW MORE

Sponsored links