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Old 06-03-2013, 12:13 PM
Wes1731 Wes1731 is offline
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Default 2000 Ranger wipers blowing fuse

Hi all, I'm new to the forum. I've been lurking for a while but now I need some help please.

Problem: Fuse 16 (wipers, washer pump, hi-lo relay, wiper park-run relay) on my 2000 Ranger XLT keeps blowing, causing the wipers to stop working.

Symptoms: Here's where it gets weird. The first time this happened, I was driving on a straight, flat road and the wipers stopped mid-wipe. I replaced the fuse and all was well until later the same day. Same thing happened. The fuse blew 3 times but only after about 10 minutes of driving with the wipers on.
I replaced the fuse again and it blew as soon as I turned the wipers on.
I sprayed WD-40 on all the linkage thinking something was binding somewhere, but no luck. I disconnected the motor from the linkage and tried running it. The motor ran for about 2 seconds before the fuse blew.
I unplugged the motor and turned the wipers on, and no fuse blew. Thinking that the problem must be in the motor, I bought a new one and plugged it in without connecting the linkage, but it also blew the fuse. I'm at the end of my knowledge as to what the problem may be.

I thought there might be a short in the circuit somewhere, but if a wire is grounding out, it would have blown even if there wasn't anything connected, right?
I also swapped the hi-lo and horn relays since they're the same part, but that didn't help. I have cleaned the wiper switch using the guide on this site.

Any help would be greatly appreciated.
Side notes: I noticed fuse 17 is also blown (data link connector and cigar lighter). The dome light stays on when the door is closed, but the door chime functions properly
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2000 Ranger XLT Sport 3.0L Auto Trans
327,000 kms on body (203,000 mi)
195,000 on engine (121,000 mi)
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  #2  
Old 06-03-2013, 03:31 PM
DannMarr DannMarr is offline
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Join Date: Nov 2009
Posts: 258
Default Re: 2000 Ranger wipers blowing fuse

With the car in the off position, remove the negative battery cable and use a multi-meter to test continuity between the positive battery terminal and the engine block. If there is continuity, you have a short.
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2001 Ford Ranger with the flare sides. 4x4 with a 4.0 engine. The only thing I did so far is: F/R Brakes, rotors, drums, F/R shocks, tires, bed cap, cone filter, hanger/shackles, F/P wheel bearing, upper control arm, lower ball joint, filler neck, fuel filter and DPFE sensor, muffler, sway bar links and spark plugs!
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  #3  
Old 06-03-2013, 06:04 PM
Wes1731 Wes1731 is offline
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Default Re: 2000 Ranger wipers blowing fuse

Just tried that but no continuity. There's no short anywhere that I can tell. The hi-lo relay works because I can hear it clicking when the motor is unplugged. If
The fuse doesn't blow when the motor is unplugged does
That mean the multifunction switch is okay?
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2000 Ranger XLT Sport 3.0L Auto Trans
327,000 kms on body (203,000 mi)
195,000 on engine (121,000 mi)
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  #4  
Old 06-03-2013, 08:22 PM
Wes1731 Wes1731 is offline
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Default Re: 2000 Ranger wipers blowing fuse

I just reinstalled the brand new wiper motor. It ran for about ten minutes but got very hot. I'm baffled as to what this could be and I'd rather not buy a multifunction switch and/or CTM as I'm on a college student budget!
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2000 Ranger XLT Sport 3.0L Auto Trans
327,000 kms on body (203,000 mi)
195,000 on engine (121,000 mi)
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