Wipers have one speed
- Thread starter Eighty5ov
- Start date
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MarineOne
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Following mine are doing same thing I'm thinking the switch it bad but haven't got into testing yet
Doppleganger
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The parking switch easily and heavily corrodes.
Yours is the same as mine. See this for an inside look at the whole thing before tearing it apart.
https://www.gmsquarebody.com/threads/85-91-wiper-motor-rebuild.36321/
Yours is the same as mine. See this for an inside look at the whole thing before tearing it apart.
https://www.gmsquarebody.com/threads/85-91-wiper-motor-rebuild.36321/
Doppleganger
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Go to the link - post #5, step 18. Shows what I used.
Eighty5ov
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So I did some investigating. Cleaned the connections on the park switch. Without the wiper module, no change. So I checked power to connector, 12 v. On high and low. Plugged everything back in and just one speed. So I put direct power to the motor and ran like it should on high and low. So I’m stuck at where the problem lies. Switch ?
squaredeal91
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My yellow truck does it too. It started after I changed column. Didn't do it before.
Eighty5ov
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So I did some more investigating. Firstly I wanted to solve the “park” issue. Had 11+ volts on the connector so I did the jumper wire and the motor moved. So I cleaned connector and wiggled it with key on and wipers in park and the wipers parked. WAS SUPER STOKED.
On to the next issue, the wipers had one speed. I ran a hot ground wire. Checked grounds. No change. Have power at the connector of 11 v. So I ran direct 12 v to the motor like I did before. Now no change. Do I suspect a failed motor ?
On to the next issue, the wipers had one speed. I ran a hot ground wire. Checked grounds. No change. Have power at the connector of 11 v. So I ran direct 12 v to the motor like I did before. Now no change. Do I suspect a failed motor ?
AuroraGirl
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i would imagine the wiring or the internal switches on the motor assembly are at fault but may just replace it now
Eighty5ov
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I cleaned all connectors as well as I could, and I have high and low working correctly. As well as park. I hope this thread helps someone out. Feel free to ask.
