1990 Mustang 4cyl Hatchback Problem - Mustang Evolution

Go Back   Mustang Evolution > Ford Mustang | Wrenching, Care and General Topics > General Mustang Discussion



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 08-09-2009, 11:54 AM   #1
Registered User
Newbie
 
Join Date: Aug 2009
Posts: 1
1990 Mustang 4cyl Hatchback Problem

I've got a 1990 Mustang 4cyl Hatchback with the following problem, the blower only blows through the defrost and can't switch it from defrost to any other control, i.e. vents, mix, etc.

I've just had a new control module installed and it works, however, the blower still stays on 'defrost'. The module itself is blowing hot and cold as it's supposed to and the fan speeds do work. Is it possible that this might be a vacuum problem?

If anyone has had this problem, I'd appreciate you letting me know.

Thanks in advance.
hawleyRyder is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 08-09-2009, 01:15 PM   #2
Registered Member
Regular
 
Otlaw80's Avatar
 
Join Date: May 2009
Region: Illinois
Posts: 504
Re: 1990 Mustang 4cyl Hatchback Problem

yes its a vaccuum problem. Find a vacuum line coming from the firewall about where the air box/heater core is. There should be one coming through the fire wall. Follow that one and see if there is any cracks or breaks in the line. If there isn't then check the vacuum tree and the main line that comes off the tree. Usually it goes to a vacuum canister. If you have access to a vacuum gauge and someone that knows how to use it, it will make it easier to find.
__________________
1986 GT T-Top. Driving Project
Otlaw80 is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > Ford Mustang | Wrenching, Care and General Topics > General Mustang Discussion

Tags
1990 mustang

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Pingbacks are On
Refbacks are Off


» Like Us On Facebook



05:00 PM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.