Electrical issue...stumped?? - Ford Powerstroke Diesel Forum

 
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post #1 of 9 Old 03-23-2011, 02:32 PM Thread Starter
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Electrical issue...stumped??

I just bought a used 99 f250 psd. Was told by the previous owner that the wipers were stuck on so she pulled the relay brought it to a dealer and was told she needed a new gem module. Ok I just replaced it and guess what. It don't work. I'm clueless. I have the washer pump coming on when I turn the wipers on but no wipers at all. It's snowing and late so I will check voltage at places tomorrow.
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post #2 of 9 Old 03-23-2011, 02:57 PM
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Sounds like the wiper switch on the steering column is bad. Contacts for washer pump could have shorted together while wiper position switch has open. I would start by checking for power at wiper motor with wiper switch on first though. Should be a simple diagnosis.
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post #3 of 9 Old 03-23-2011, 03:07 PM Thread Starter
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Ya but if I have power there or not I still have an issue with the washer staying on. How hard is it to check the switch
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post #4 of 9 Old 03-23-2011, 03:25 PM
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True. My thinking was that it is possible that the motor could also be bad. If you have power at motor? This would be a simple check. Your switch would be the prime suspect. As for checking the switch..... When I get home(if) I will look at the schematic for you. Unfortunately I am stuck at philly airport waiting to get back to ga. Will be tomorrow before I can look it up.
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post #5 of 9 Old 03-23-2011, 03:29 PM
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Btw... I highly recommend this resource. I have it on all our vehicles. ALLDATAdiy.com :: Leading Source of Diagnostic and Repair Information
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post #6 of 9 Old 03-23-2011, 06:51 PM
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You probably need a new multifunction switch. They go out all the time.

Zach
2000/2006ish Ford F-250 Larryette 7.3 Powerstroke 4x4
5" Sewer Pipe Exhaust (video clip), DIY 6637 Intake, Wicked Wheel'd, De-foiled, Missing EBPV, Edge Juice with Attitude, Few leaves added here and there, 35" BFGs, 16x10 Eagle Alloys, Alpine W200

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post #7 of 9 Old 03-29-2011, 02:17 PM Thread Starter
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Finally fixed my wiper problem!!! Marcotte ford in ma sucks. They said it was the GEM module that I spent $400 on. Well they were wrong all it were was the multi function switch that cost me $40. Easy fix just wish I hadn't listened to the dealer.
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post #8 of 9 Old 03-30-2011, 04:12 AM
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Glad to hear that! Hate that the dealer screwed you though. They make a good living that way. hard to trust mechanics sometimes when they are gettin' paid.

Lesson learned. We appreciate the update. Will keep someone else from getting the shaft.

2001 F350 XLT SRW extended cab. 2007 grill/headlight/Turn signal tow mirrors conversion. Large Filter NAPA 6637, straight piped, 35"s on 16"s, leveled with 2" Tough Country leaf springs. PHP 6 position Phoenix Gryphon tunes.
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post #9 of 9 Old 03-30-2011, 04:15 AM
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BTW.... if you still have your original GEM model you may be able to advertise it for sale. Maybe then at least you can recoup some of you money.

2001 F350 XLT SRW extended cab. 2007 grill/headlight/Turn signal tow mirrors conversion. Large Filter NAPA 6637, straight piped, 35"s on 16"s, leveled with 2" Tough Country leaf springs. PHP 6 position Phoenix Gryphon tunes.
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