2005 Mercury Mariner AC Issues - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Trucks | Utes | Vans |SUVs | Crossovers > Ford Escape | C-MAX | Mercury Mariner Forum
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

Ford Escape | C-MAX | Mercury Mariner Forum This forum is for discussion of the Ford Escape, C-MAX, the Ford Escape Hybrid and the Mercury Mariner.

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 07-02-2012, 12:59   #1 (permalink)
Registered User
 
Join Date: Jul 2012
Posts: 3
2005 Mercury Mariner AC Issues

My girlfriends AC stops blowing when you step on the throttle. As you let off of the throttle it starts blowing again. Is this supposed to happen? Has anyone had this problem before? She said she's never noticed it before I pointed it out.
MercMariner is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 07-02-2012, 15:04   #2 (permalink)
2002 F150 XLT
 
Bert's Avatar
 
Join Date: Nov 2008
Location: Oregon
Posts: 9,845
Re: 2005 Mercury Mariner AC Issues

If it just switches to the defrost vents, there's a vacuum leak in the HVAC system.
__________________
Bert
Bert is offline   Reply With Quote
Old 07-03-2012, 11:03   #3 (permalink)
Registered User
 
Join Date: Jul 2012
Posts: 3
Re: 2005 Mercury Mariner AC Issues

You're saying if when the AC stops blowing, it changes to defrost, then back to the regular vents there's a leak? I will double check but I'm fairly certain that it just stops blowing period, then returns as you let off of the gas pedal. I know that older compact cars would shut off the AC as you throttle up to make sure the power is at the motor and not being used on the AC but I assume the 6 cyl can handle the output...
MercMariner is offline   Reply With Quote
Old 07-03-2012, 14:31   #4 (permalink)
2002 F150 XLT
 
Bert's Avatar
 
Join Date: Nov 2008
Location: Oregon
Posts: 9,845
Re: 2005 Mercury Mariner AC Issues

If the blower itself stops running, then it wouldn't be a vacuum leak.
__________________
Bert
Bert is offline   Reply With Quote
Old 08-13-2012, 09:15   #5 (permalink)
Registered User
 
Join Date: Jul 2012
Posts: 3
Re: 2005 Mercury Mariner AC Issues

So it's been a while but it does default to the defrost under acceleration so I assume it is a Vac leak. Can anyone point me in the right direction to start checking vac lines?
MercMariner is offline   Reply With Quote
Old 08-13-2012, 19:18   #6 (permalink)
Dazed and Confused
 
CatSkinner's Avatar
 
Join Date: May 2012
Location: Upstate New York
Posts: 3,950
Re: 2005 Mercury Mariner AC Issues

Check the seal for the PCV valve and the plugs for the unused ports on the vacuum manifold, commonly overlooked.
CatSkinner is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > Ford Trucks | Utes | Vans |SUVs | Crossovers > Ford Escape | C-MAX | Mercury Mariner Forum



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 05:28.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.