Windshield Wiper Motor Dying?
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Fleet Mechanic
Joined: Apr 2008
Posts: 1,724
Likes: 2
From: Vancouver BC Canada
Windshield Wiper Motor Dying?
I know I'm posting lots of Q's but I'm new to these trucks and this one has a few issues. The wiindshield wiper motor on this truck is really noisy, the intermittent settings don't seem to work, and using the left turn signal freezes the wipers. Turn the signal off and the wipers start up again. Sometimes I hear a clicking under the dash / glovebox area.
Bad wiring somewhere or bad motor?
TIA
Bad wiring somewhere or bad motor?
TIA
Posting Guru
Joined: Jun 2007
Posts: 1,394
Likes: 0
From: Des Plaines, Illinois
Mine does that on occassion. The click you hear should be the relay...it's very loud on mine as well.
I'd suspect a fault in wiring or the switch itself. I just haven't gotten to really looking into it yet.
I'd suspect a fault in wiring or the switch itself. I just haven't gotten to really looking into it yet.
Thread Starter
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Fleet Mechanic
Joined: Apr 2008
Posts: 1,724
Likes: 2
From: Vancouver BC Canada
ok, I was mistaken, the intermittent does work, but the left turn signal definitely halts the wipers. Also they seem to run slower when the engine is turning slower (like at a stop light).
Thread Starter
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Fleet Mechanic
Joined: Apr 2008
Posts: 1,724
Likes: 2
From: Vancouver BC Canada
Ok, update on this. I like to update any issues i've posted on so future searches can help others...
Wiper motor finally died on me for good in a rainstorm on the highway while the whole family was on vacation (Doh!). After doing the Ace Ventura driving technique, I pulled the motor out when we got home. After doing a search on here, I opened up the motor and the magnets had come loose from the case. I was going to epoxy them back on to the case but one of them had broken into a number of pieces so I had to put in a new one. Now the wipers work and are quiet. The intermittant still only works at the higher speeds and the wipers still cut out when the left turn signal is on but at least I have wipers. Next I'm going to explore the wiper circuit board for cracks in the solder. I will update when I do.
Wiper motor finally died on me for good in a rainstorm on the highway while the whole family was on vacation (Doh!). After doing the Ace Ventura driving technique, I pulled the motor out when we got home. After doing a search on here, I opened up the motor and the magnets had come loose from the case. I was going to epoxy them back on to the case but one of them had broken into a number of pieces so I had to put in a new one. Now the wipers work and are quiet. The intermittant still only works at the higher speeds and the wipers still cut out when the left turn signal is on but at least I have wipers. Next I'm going to explore the wiper circuit board for cracks in the solder. I will update when I do.
Thread Starter
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Fleet Mechanic
Joined: Apr 2008
Posts: 1,724
Likes: 2
From: Vancouver BC Canada
I want to tackle the left-turn-signal-freezes-windshield-wipers problem before our 8 month rainy season starts for good. Does anyone have a diagram or schematic for a 94 F150 multi-function switch? Thanks
