1997 Ford Contour Air blend control not working

Tiny
JWTRAVIS
  • MEMBER
  • 1997 FORD CONTOUR
  • 4 CYL
  • 2WD
  • MANUAL
  • 140,000 MILES
Air only comes out defroster vents. Replaced white plastic blend control unit on right side under dash, to no avail. I think the selector switch is ok as it goes off in center position. What else could it be? Vacuum is present just above the blend control, but it doesn't move when removed and plugged in.
Do you
have the same problem?
Yes
No
Monday, November 16th, 2009 AT 3:48 AM

4 Replies

Tiny
SERVICE WRITER
  • EXPERT
If the blend door is not moving it is probably the blend door motor that is bad.


http://www.2carpros.com/forum/automotive_pictures/30961_qcon_1.jpg



http://www.2carpros.com/forum/automotive_pictures/30961_qcon1_1.jpg



I can get a wiring diagram if you like.
Was this
answer
helpful?
Yes
No
+1
Monday, November 16th, 2009 AT 5:44 AM
Tiny
JWTRAVIS
  • MEMBER
Thanks for your quick reply. I read that the Contour was same as Mondeo (I'm an american living in Australia) and there's almost no support for the mondeo here--it was a failure in the 90s, with a comeback on new ones.

But I'm not sure we're on the same page. The motor looks like attached and doesn't move when removed, but plugged in. I got a replacement from local scrap yard and both test identically for continuity on the 8-pin electrical connection, so I suspect they're both good (or have exactly the same problem).
Is this the same car we're talking about?
There could be a vacuum leak elsewhere--can hear a faint sound when engine running--like the loud sucking when I had the line off that plugs in near this unit. Can't find it tho, and regardless, this is electrical and should move when selector switch is changed.


http://www.2carpros.com/forum/automotive_pictures/435642_97BW_19E616_Blend_motor_Mondeo_2.jpg

Was this
answer
helpful?
Yes
No
Monday, November 16th, 2009 AT 2:59 PM
Tiny
SERVICE WRITER
  • EXPERT
I've requested help form another mod on this one as my electrical skills need improvement.

There is a tube on the back of the motor near the firewall that can have a vacuum leak that you may be hearing. Typically it will set a check engine light when it does as it is allowing unmetered air to enter the motor.
Was this
answer
helpful?
Yes
No
Tuesday, November 17th, 2009 AT 6:04 AM
Tiny
SERVICE WRITER
  • EXPERT
Tell him that the item in question is the same, item # 7 in diagam.

Get him to perform the circuit test to confirm that all power supply and grounds are correct as per the precedures you supplied to him.

Vacumn leaks can affect the system and from his description, it could be the source of the problem.
Was this
answer
helpful?
Yes
No
Tuesday, November 17th, 2009 AT 5:47 PM

Please login or register to post a reply.

Recommended Guides