windshield washers
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Posting Guru
Joined: Apr 2003
Posts: 2,123
Likes: 2
From: WA
windshield washers
well recently my dad asked me to fix his windshield washers on his 94 f150, and i really have no idea where to start, i checked the fluid and that was fine, and when i press the windshield washers and i don't hear anything, so i'm guessing there's a pump that i need to replace, does anyone know how much one of those costs? Thanks
Junior User
Joined: Mar 2003
Posts: 59
Likes: 0
From: Virginia
windshield washers
Check the connection to the pump first, when mine stopped working I cleaned the connection and it has been working great ever since. The motor is located at the base of the washer resivor. Just unplug it and clean it and try it then. IF that dosent do it then you will probably need tp replace the motor.
Post Fiend
Joined: Nov 2002
Posts: 9,987
Likes: 7
From: Memphis, TN
windshield washers
The pump is pressed into a socket in the bottom of the tank, but they rarely go bad. On '92-96s, it's more often the wiper control module (WCM) in the dash behind the glove box. It has a 14-position connector with 2 empty positions, both on the same side of the lock button; one on the top row & one on bottom. The wires in the 4 corners are Wh, DkBu/Or, Or, & DkBu/Wh. I think it's attached to the bottom of the far R ventilation duct, and you can get to it by folding the glove box all the way down (so it dumps on the floor).
Use a 12V test light or multimeter to see if the Bk/Wh wire goes hot when you press the spray button. If it does, the pump or the Bk/Wh wire is bad. Repeat the test at the pump connector. If you get no power, the wire is bad. Then test the ground for continuity to the battery (-) post. If it's good, the pump is bad.
If the pump circuit is good, unplug the connector and see if the Br/Wh becomes a dead short to the DkBu/Wh when you press the button. If not, the Multi-Function Switch (MFS) is bad. If it does, the WCM is bad.
Use a 12V test light or multimeter to see if the Bk/Wh wire goes hot when you press the spray button. If it does, the pump or the Bk/Wh wire is bad. Repeat the test at the pump connector. If you get no power, the wire is bad. Then test the ground for continuity to the battery (-) post. If it's good, the pump is bad.
If the pump circuit is good, unplug the connector and see if the Br/Wh becomes a dead short to the DkBu/Wh when you press the button. If not, the Multi-Function Switch (MFS) is bad. If it does, the WCM is bad.
Last edited by steve83; May 4, 2003 at 01:54 PM.
