WoodnotRust
SILVER Star
I think I just did my first "two banana" job.
After coming back from the paint & body work I discovered my rear wiper no longer worked. To be honest, it only worked off-and-on before, but I'm on a mission to have every stinkin' part on this truck work as it's supposed to work. I'm almost there too.
I tested the motor by hooking it up to a cheap power supply and following the FSM - The motor works properly
My relay looks good, but I wasn't sure how to really test it. I could hear clicking on high and nothing on intermittent.
I bought a $15 used switch on EBAY and it still didn't work
Finally, I ran a ground wire from the motor to the battery and BINGO...the wiper works great. Then I moved the wire from the battery to a ground near the rear washer bag (on a relay) and it still worked great. So...the problem was a broken ground between the lift gate and the body of the truck.
Solution, run a new ground wire from the body of the wiper motor to a ground bolt on the body of the truck (doing it is the two banana part):
1. Remove the rubber boot that connects the lift gate wiring on the drivers side.
2. Make a loop in the new ground wire and insert it into the lift gate with a stiff wire. Push it toward the motor and then use another wire with a hook to fish out the loop from the motor side.
Tip: tape up the ground wire loop really well, but loosely tape the ground wire to the "push wire". That way when you hook onto it you can pull it off the push wire. I also used my phone camera and a flash to confirm the location of the wire loop.
3. tape-up a push wire to blunt the end and push it though the rubber boot so you can fish the wire back through the boot.
4. Using the same loop technique, push the wire through the hole near the rubber boot along the roofs edge toward the driver's side rear vent. Try to keep the wire toward the back of the truck, or it will disappear somewhere under the head liner. If the push wire you taped your ground-wire is just flexible enough it will drop down the side and you can open the exterior rear vent and fish it out.
5. Attach ring connectors to the wire and screw to body of motor and to nut on the truck.
Fishing this wire through for me was a challenge, but I did it so I know just about anyone can. So...OK. I've seen lots of people do stuff I couldn't dream of doing so I'm sure there is an easier way.
After coming back from the paint & body work I discovered my rear wiper no longer worked. To be honest, it only worked off-and-on before, but I'm on a mission to have every stinkin' part on this truck work as it's supposed to work. I'm almost there too.
I tested the motor by hooking it up to a cheap power supply and following the FSM - The motor works properly
My relay looks good, but I wasn't sure how to really test it. I could hear clicking on high and nothing on intermittent.
I bought a $15 used switch on EBAY and it still didn't work
Finally, I ran a ground wire from the motor to the battery and BINGO...the wiper works great. Then I moved the wire from the battery to a ground near the rear washer bag (on a relay) and it still worked great. So...the problem was a broken ground between the lift gate and the body of the truck.
Solution, run a new ground wire from the body of the wiper motor to a ground bolt on the body of the truck (doing it is the two banana part):
1. Remove the rubber boot that connects the lift gate wiring on the drivers side.
2. Make a loop in the new ground wire and insert it into the lift gate with a stiff wire. Push it toward the motor and then use another wire with a hook to fish out the loop from the motor side.
Tip: tape up the ground wire loop really well, but loosely tape the ground wire to the "push wire". That way when you hook onto it you can pull it off the push wire. I also used my phone camera and a flash to confirm the location of the wire loop.
3. tape-up a push wire to blunt the end and push it though the rubber boot so you can fish the wire back through the boot.
4. Using the same loop technique, push the wire through the hole near the rubber boot along the roofs edge toward the driver's side rear vent. Try to keep the wire toward the back of the truck, or it will disappear somewhere under the head liner. If the push wire you taped your ground-wire is just flexible enough it will drop down the side and you can open the exterior rear vent and fish it out.
5. Attach ring connectors to the wire and screw to body of motor and to nut on the truck.
Fishing this wire through for me was a challenge, but I did it so I know just about anyone can. So...OK. I've seen lots of people do stuff I couldn't dream of doing so I'm sure there is an easier way.
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. the light comes on on the switch so i know it’s getting power. doesn’t mean it’s switching things properly though. i’ll figure it out. i just attack this problem every 6 months or so so i forget what i’ve done already!!
) and i had to take the whole motor out and open it up to get that nut out. there’s a big magnet in there!! just leave them alone!! find a different place to ground to!!
