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1994 Ford F-150 vaccuum?

Tiny
JIMMOLINE
  • MEMBER
  • 1994 FORD F-150
Air Conditioning problem
1994 Ford F150 6 cyl Two Wheel Drive Automatic

Does the AC have some sort of a vaccuum that affects the AC blower? When accelerating or the engine is under load the blower barley works. When coasting or the engine is not under load it blows great. Reminds me of the old 1955 Ford with vaccuum windshield wipers. Go fast and they don't work. Coast and they work fine. Is there something like that here? How can I fix it?
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Tuesday, June 22nd, 2010 AT 5:06 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be the vacuum actuator for the air blend door acting up


http://www.2carpros.com/forum/automotive_pictures/12900_ac_schematic_1.jpg

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Tuesday, June 22nd, 2010 AT 5:24 PM
Tiny
JIMMOLINE
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  • 3 POSTS
I am not able to read this schematic. Perhaps I can figure it out by looking at it now that I know there are vaccuum hoses involved. Would I get to this under dash or through the dash somewhere? Or is this something under the hood on the firewall?
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Tuesday, June 22nd, 2010 AT 5:57 PM

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