Anybody know the fix for this: Wipers work slow and park at half way. I searched and there was a thread where a guy asked the same question but never got or posted the answer. I thought the motor was bad but it still does the same thing with a different motor. This is a customer's car imported to Texas from Bajarain and was used as a track car there. So I don't know the history. They just unplugged the motor with the wipers down. It's not the angle of the blades to the linkage. If you set them proper with the motor off it just tries to run them below the cowl and jams up. The problem is that they stop on shut down coming back up again. It is either a linkage problem, ie something installed incorrectly in there or some electrical issue I'm not aware of like a symptom of a bad ground.

Thanks for any help,
Vernon

 

i forgot what its called but had that problem on a 88 gmc truck. Its a switch in the wiper circuit so that when you shut it off it goes back down. Because if it didnt have it, every time you turned the wiper off it would stop where it is at. I would say look up the fd FSM and look at the wiper schematic and look for....damn dont remember the name, but its a switch. On the truck i just had to hook up one wire and it fixed it. Sorry to lazy to look it up right now lol but if you still havent found it later ill look it up and let you know, hope this helps and good luck

also as for them working slow, is your battery low? or are they just working slow? I would guess that if the motor is good it is either battery or the bushing or grommets where the arms sit might need to be lubed up? Again just tossing out ideas to try and help.

 

If there isn't extra play in the mechanics, and the same stopping position is also achieved when the blades are up and off the windshield;
then there should be an alignment problem. The mechanics of the action should repeat the same.

Since the blade holder bases and the drive spindles are all splined; then they were put back on incorrectly. Loosen and rotate them all to another orientation.

If the action changes, then the switch in the motor is bad.

 

Sorry to bring this thread back to life but I am experiencing the same issue.

Wipers stop half way up, no matter where or when they are turned "off" with the switch.
Can't remove the wipers on the "off" position and reset them back to horizontal because on start-up they try to go back "down" and get stuck underneath the cowl of the hood.

Did the original poster solve this? Is it something with the switch?

Mine worked fine before my engine rebuild. They just started this on the initial start-up of the new build. Didn't remove or replace them during the build. Nothing should have changed.

Thanks in advance, Josh

 

Messed with the wipers again a little last night.
I thought I could try and run the wiper motors without the wipers installed and open my main breaker off the battery when they were completely down, trying to see if that would give the motors a new "off" position.

Closed the breaker and turned the key to the forward position and they immediately parked back to half way up.

I guess my question is what tells the motor/switch that "off" is half-way up?
The wipers make the entire sweep when running, but just stop half-way.

Thanks again, Josh

 

Hey guys. Solved the problem. For those who might run into the same issue.

My dumbass forgot that when I pulled the entire engine bay to paint I forgot to mark or scribe where the splines lined up on the shaft of the wiper motor in relation to the wiper linkage.

Last night I pulled my wiper motor and "clocked" back the wiper motor shaft to the wiper linkage and all is good to go. If you don't mark or scribe where the motor shaft and wiper linkage mate when you remove the motor, you may have to play around with the reinstallation to try and get it mated up close again.

Lesson learned.

 

If the wipers are clocked correctly and they're still acting like the motor is dieing, check the pivot points on the wiper mechanism for stickiness. I did this AFTER I bought and installed a new wiper motor. A little grease and some muscle and I could have saved myself a few bucks on the wiper motor.