2003 f250 fan controls not working
#1
2003 f250 fan controls not working
Hey guys, just recently noticed noticed that my fan only blows on defrost and will not switch to vents for floor of dash vents no matter if I switch to a.c., defrost, floor or dash vents. The actual switch just take a crap or what? Any ideas would be awesome cause its been pretty hot the last few days. Thanks
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whaylow (07-24-2012)
#2
#3
#4
any chance someone can post a pic. of the vaccum pump. Im pretty sure I have found it, a electric connector on top with two vaccum lines connecting to the middle part of the body of the pump?... Do the vaccum lines just pull off the body of the pump or is there some sort of snap connection?
#5
They pull off, but the fittings are barbed, so sometimes it's a little difficult. Standing on the passenger side, looking into the engine bay, you should see the vacuum reservoir (big black plastic housing just to the left of the battery), the pump is just to the left of that towards the fender.
If you watch the video in the thread I'm talking about, he shows you exactly where all this stuff is...
If you watch the video in the thread I'm talking about, he shows you exactly where all this stuff is...
#6
#7
Yes, that's what mine is doing, it's still a vacuum leak somewhere. I'm tracing mine down right now. I just replaced the lines going from the vacuum pump down to the hubs, no change, tested the reservoir itself, it's holding vacuum. Have it narrowed down to either the solenoid right by the vacuum reservoir, or the hub seals.
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whaylow (07-24-2012)
#8
I checked my line and I don't have any vacuum at all. I pulled the lines off of the resevior and got just a little puff. Then with engine running turned 4x4 switch on and got nothing from the lines. I should have felt some suction right?
Last edited by whaylow; 07-24-2012 at 06:58 PM. Reason: spelling