Question: 76 wipers no high speed

[76sharky]

Hello. Have a 76 that has just low wiper speed only...sometimes they stop by themselves. I think my wiper motor is nearly shot. Any tests I can do to be sure?

Thanks,Pete

 

[73shark]

Welcome to the forum. Might take a meter and check to see that you are getting 12V at the wiper motor and check grounds and connectors. Also may have to check the switch itself.

 

[76sharky]

Thanks....I'll check it all out...Do you happen to know where wiper motor is grounded to in engine compartment?

 

[petes74ttop]

On the wiper motor there is a 3 prong connector.
The top wire ( blue or green ) is a ground to make the wipers run on low.
The center wire ( yellow ) is HOT with the key on.
The bottom wire is a ground ( black ) makes the wipers run on high.
There is a seperate black ground wire that should connect to a bolt on the bellhousing, down by the starter.
The switch inside the car most also be grounded, you can run a wire from the one of the small bolts that hold the switch in place to a good ground.
PG.

 

[76sharky]

On the wiper motor there is a 3 prong connector.
The top wire ( blue or green ) is a ground to make the wipers run on low.
The center wire ( yellow ) is HOT with the key on.
The bottom wire is a ground ( black ) makes the wipers run on high.
There is a seperate black ground wire that should connect to a bolt on the bellhousing, down by the starter.
The switch inside the car most also be grounded, you can run a wire from the one of the small bolts that hold the switch in place to a good ground.
PG.

Thanks....I'll give it a try....Pete