windshield wiper motor.
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Senior User
Joined: Sep 2004
Posts: 391
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From: brooksville, florida
windshield wiper motor.
Hi I have a 1991 5.0 V8 F150.
It has been laid up for a few months and i am just now getting back on the road, my problem is, the windshield wiper motor is running very slow and putting a huge drain on the battery it did not do this before it was laid up so any ideas what could be wrong with it.? I am going to try and remove the plastic cover on the gears first to see if they need greasing, i know it is a bitch to remove the whole motor and i was wondering if i can remove the motor cover without taking out the whole thing.? Any help would be appreciated, i need it for monday so i have to fix it this weekend. Also it had a misfire that i could not trace, i put a new battery in it yesterday and the misfire seems to have gone,? could the old battery h ave been causing the misfire, it was not the right battery for the truck and only just managed to crank it over but it would get it running.
Thanks for any help.
cbr900
It has been laid up for a few months and i am just now getting back on the road, my problem is, the windshield wiper motor is running very slow and putting a huge drain on the battery it did not do this before it was laid up so any ideas what could be wrong with it.? I am going to try and remove the plastic cover on the gears first to see if they need greasing, i know it is a bitch to remove the whole motor and i was wondering if i can remove the motor cover without taking out the whole thing.? Any help would be appreciated, i need it for monday so i have to fix it this weekend. Also it had a misfire that i could not trace, i put a new battery in it yesterday and the misfire seems to have gone,? could the old battery h ave been causing the misfire, it was not the right battery for the truck and only just managed to crank it over but it would get it running.
Thanks for any help.
cbr900
Hotshot
Joined: Oct 2003
Posts: 17,799
Likes: 104
From: Ashland City, TN
To get it off, you need to remove the cowel. It's a pain if you have the hood on. I scratched the hell outa mine.
Check out my repair article, https://www.ford-trucks.com/forums/s...d.php?t=211828
Will help you repair the module that causes the wipers to run like crap. And to fix it.
If you have questions, send me a message!
I don't think you were having issues because of your battery. Perhaps you had a really bad connection, and the circuit wasn't working as well as it could have.
I duno! =)
The repair guide i wrote should help you with the other problemo!
Check out my repair article, https://www.ford-trucks.com/forums/s...d.php?t=211828
Will help you repair the module that causes the wipers to run like crap. And to fix it.
If you have questions, send me a message!
I don't think you were having issues because of your battery. Perhaps you had a really bad connection, and the circuit wasn't working as well as it could have.
I duno! =)
The repair guide i wrote should help you with the other problemo!
Senior User
Joined: May 2006
Posts: 222
Likes: 0
From: Edmonton, AB
I just went through this on my '88, so hopefully I can give you some info that's of use to you.
First, take a look at the motor. There are two different styles. One has two connectors, one directly on the front of the motor and one on the bottom of the motor. The other has only one connector. Mine was the two connector type. You'll need to find this out before you call Autozone or wherever your going to buy the new motor.
While your at it, take a look to see if the connectors on the motor got hot. On mine the connector on the front of the motor looked like it got hot. Around the pins it was brittle, and there was some bubbling, so it was pretty obvious that my motor was finished. If you have the same melting, it's probobly a pretty good bet that re-greasing it won't fix much. I spent about $60.00 on my new wiper motor, so it's not really worth trying to fiddle around and save the old one.
The R&R process I used was this:
1. Remove your wiper blades and the bottom bright chrome trim around your windshield.
2. From inside the engine compartment, remove the screws along the side of the cowl. You might have to remove a gasket that runs along here, I can't remember.
3. Remove your radio antenna mast
4. Take a look around the general area of your windshield wiper pivot points. You'll see a screw (it wasn't obvious to me the first time I looked) sort of recessed into the cowl. Remove it, and once you've figured out where it is, you'll easily be able to loacte and remove the remaining screws.
5. With a friends help, carefully lift the cowl about an inch off the truck. Pull the washer hose off the nozzle, then continue to lift the cowl off the truck. If you're carefull, you'll not scratch paint. You can do the job with one person, no problem, but I'll guarantee that you'll scratch paint only one person.
6. Remove the clip that holds the wiper transmission on the back of the motor. It comes off quite easily.
7. Remove the three bolts that hold the wiper motor to the firewall. Watch the bolt that holds a ground wire. It often rusts to the bolt and you'll need to cut the connector and replace it.
8. Remove the motor. You'll probobly have to remove the peice that's bolted on to the motor and move it to the new one. This is kind of a pain in the butt, because it might not come off easily with once you've removed the bolt. I put my old motor on a vise and used a hammer to persuade it off.
9. Bold the old end peice to the new motor.
10. Reverse the steps to re-install
Oh, make sure you re-connect the wiper washer hose to the washer nozzle before you re-attach the cowl because it's a pain in the butt to do once the cowl is back in place.
Good luck! It's not a tough job to do at all.
First, take a look at the motor. There are two different styles. One has two connectors, one directly on the front of the motor and one on the bottom of the motor. The other has only one connector. Mine was the two connector type. You'll need to find this out before you call Autozone or wherever your going to buy the new motor.
While your at it, take a look to see if the connectors on the motor got hot. On mine the connector on the front of the motor looked like it got hot. Around the pins it was brittle, and there was some bubbling, so it was pretty obvious that my motor was finished. If you have the same melting, it's probobly a pretty good bet that re-greasing it won't fix much. I spent about $60.00 on my new wiper motor, so it's not really worth trying to fiddle around and save the old one.
The R&R process I used was this:
1. Remove your wiper blades and the bottom bright chrome trim around your windshield.
2. From inside the engine compartment, remove the screws along the side of the cowl. You might have to remove a gasket that runs along here, I can't remember.
3. Remove your radio antenna mast
4. Take a look around the general area of your windshield wiper pivot points. You'll see a screw (it wasn't obvious to me the first time I looked) sort of recessed into the cowl. Remove it, and once you've figured out where it is, you'll easily be able to loacte and remove the remaining screws.
5. With a friends help, carefully lift the cowl about an inch off the truck. Pull the washer hose off the nozzle, then continue to lift the cowl off the truck. If you're carefull, you'll not scratch paint. You can do the job with one person, no problem, but I'll guarantee that you'll scratch paint only one person.
6. Remove the clip that holds the wiper transmission on the back of the motor. It comes off quite easily.
7. Remove the three bolts that hold the wiper motor to the firewall. Watch the bolt that holds a ground wire. It often rusts to the bolt and you'll need to cut the connector and replace it.
8. Remove the motor. You'll probobly have to remove the peice that's bolted on to the motor and move it to the new one. This is kind of a pain in the butt, because it might not come off easily with once you've removed the bolt. I put my old motor on a vise and used a hammer to persuade it off.
9. Bold the old end peice to the new motor.
10. Reverse the steps to re-install
Oh, make sure you re-connect the wiper washer hose to the washer nozzle before you re-attach the cowl because it's a pain in the butt to do once the cowl is back in place.
Good luck! It's not a tough job to do at all.
Thread Starter
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Senior User
Joined: Sep 2004
Posts: 391
Likes: 0
From: brooksville, florida
Hey thanks guys.
I managed to remove that cowl and got another motor from the autoparts store, you were right it cost me $55. The magnets in the old one had broken and there was water in the motor. Thanks for all your sugestions though, i followed your instructions to get that cowl of and after that came of it was easy, frigging pain in the butt to replace the cowl though, did scratch the hell out of the paint as well but i plan on repainting her soon anyway.
Thanks once again guys.
I managed to remove that cowl and got another motor from the autoparts store, you were right it cost me $55. The magnets in the old one had broken and there was water in the motor. Thanks for all your sugestions though, i followed your instructions to get that cowl of and after that came of it was easy, frigging pain in the butt to replace the cowl though, did scratch the hell out of the paint as well but i plan on repainting her soon anyway.
Thanks once again guys.
