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Old 12-30-09, 01:03 PM   #1 (permalink)
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I killed my windshield wipers..help!

I committed the cardinal sin of leaving my wipers on before 18" of snow. After starting my '86 up with all that snow piled on my wipers now fail to work. Here's what's happening and what I've done so far.

1. The 20A fuse @ slot #15 in the dash fuse box keeps blowing.
2. Under hood fuses all look fine.
3. I direct wired the wiper motor and it checks out fine in every way (Service Manual page 23-136)

What should I do next? What's the most likely problem?

Thanks!!
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Old 12-31-09, 02:17 PM   #2 (permalink)
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Dang! 45 views and not one suggestion. I must be in real trouble.
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Old 12-31-09, 03:41 PM   #3 (permalink)
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So what happens if you turn on the wipers? The fuse blows?
Does the motor for the wipers work and have you used a volt meter to see if power is getting to the motor?
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Old 12-31-09, 03:52 PM   #4 (permalink)
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Originally Posted by C27A1Legend'88 View Post
So what happens if you turn on the wipers? The fuse blows? Yes. Every time.
Does the motor for the wipers work and have you used a volt meter to see if power is getting to the motor?
Yes they work. While I didn't use a volt meter, I did run power directly from the battery to the motor as described in the service manual and the wiper motor worked perfectly.
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Old 12-31-09, 03:54 PM   #5 (permalink)
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Oh. Thanks for jumping in here
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Old 12-31-09, 11:10 PM   #6 (permalink)
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All the info on the wipers starts on pg.802 in the manual. The manual is in the stickied thread in the G1 area at the top. Use the PDF version 2. It has trouble shooting but it doesn't say what to do if the fuse keeps blowing. Don't use a different amperage rating of fuse though. And make sure you are using the right fuse. If you use different ones, it will do damage to your electrical system. You could have a shorted wiper motor.

I got this from a website:
"If a fuse keeps blowing, it usually means something is amiss in the circuit. The wiring should be checked along with the components in the circuit to determine if there's a short or other problem.

The fuse for the windshield wiper circuit, for example, may blow if ice or debris builds up in the cowl areas and interferes with the movement of the wiper arms. If a fuse blows in a motor circuit (heater blower motor, cooling fan motor, power seat or window, electric fuel pump, etc.), it often indicates a shorted motor."

Full article:
http://autos.yahoo.com/maintain/repa...ques037_1.html
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Last edited by C27A1Legend'88; 12-31-09 at 11:26 PM.
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Old 01-01-10, 01:57 AM   #7 (permalink)
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hey thanks man i didnt even realize i was wondering why
nobody said anything. i didnt even notice i put it under RLs
haha thanks man but no i didnt hit anything or curb
i did a engine swap with my uncle and maybe
we didnt tighten a bolt
i went to acura shop here in boise id.
and told me the rack and pinon maybe broke but i dont think so
but ill check
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Old 01-01-10, 09:32 AM   #8 (permalink)
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Wipers suck. I hate digging into the cowl to work on stuff. I wonder if the splines on the shaft for the wipers got damaged in the process.
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Old 01-02-10, 06:51 PM   #9 (permalink)
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I'm like 90% sure you have a shorted wiper motor. There isn't a short in the wiring because you haven't changed anything. If the motor is shorted, then it will keep blowing fuses. You will have to replace it. Get one at a junkyard. That is where I get the majority of my parts.
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Old 01-02-10, 10:14 PM   #10 (permalink)
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C27A1Legend'88 and Cerve, thanks for responding. I really appreciate it, but let my try once more to explain what's going on.

First, the 20A fuse in the inside dash fuse box blows every time I turn on the wipers.

Second, I have an actual service manual printed in Japan in 1986 and in Section 23, page 136 "Wiper/Washer---Wiper Motor Test" I performed this proceedure and the wiper motor works fine. I disconnected the 5-P and 3-P connectors from the motor assembly and ran positive and negative wires directly from my battery to the proper terminals on these connectors (using alligator clips from a jumper cable to the terminals).

The wiper motor ran fine, both on low and high speed and the wipers moved across the windshield normally. I also ran battery positive/negative to check the solenoid and it did "click" ---indicating normal operation.

The problem does not appear to be with the wiper motor, although this is a surprise to me. So if not the motor, where else might the problem be?

Thanks again!
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Old 01-02-10, 10:18 PM   #11 (permalink)
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A constantly blowing fuse is a sign of a direct wiring short someplace. You will have to isolate that to repair it. With wiring being in harnesses, then you will need to bypass the harness to isolate. You may need to find a shop with an electrical specialist to help out.
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Old 01-03-10, 12:47 AM   #12 (permalink)
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Ok the motor worked when you direct wired it but blows every time you use the windscreen wiper switch inside the car. The switch or the wiring has a short then. I agree with duckdog.
Sorry electrical problems are not my specialty and I have never had one. There is a way to test for shorts in wiring and switches with a volt meter.

More stuff I found that might be helpful:

"If the questioned circuit keeps blowing fuses--replace fuse with a test light--light will illuminate as long as there is current flow to ground (Short) when short is found and removed (bad wire etc,) light will go out "

"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."

How to Find a Short in Wiring | eHow.com

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