1973 Cuda wiper motor not working

[73-Cudah2]

I had read some information on wiper motors and looks like my old one was dead. I checked the terminals from the battery shown on some posts.
also noted if not grounded it will not work if issues were found there. I did ground from the battery to the ground strap on the wiper motor but still did work.
I bought a new wiper motor online from "A1 Premium" but installing that one it didn't work? I retested the wires from the switch low and high speed the the test light shows they are getting power. any Ideas what could be the problem? Thanks for the help.

 

[Challenger RTA]

Check the grounding strap on the wiper motor for ground. scuff it. Both ends and the threads for the stud.

 

[Challenger RTA]

Linkage jammed?

 

[73-Cudah2]

Yes I did check the linage. I moved it by hand to make sure it was not stuck. It a new motor but I will scuff both ends who knows?

thanks for the feed back.

 

[73Machine]

Make sure your switch is grounding too. I just had a problem with my wipers thinking it was the motor and it turned out to be the switch that I had rebuilt had failed when one of the springs inside of it dislodged. 5 minutes later after taking the switch apart to inspect it I put it back together and was good as new.

 

[73-Cudah2]

After I re-cleaned the contacts (the inside contacts of the wires that contact to the motor) the wiper motor worked.
Thank you all for the suggestions.

 

[EW1BH27]

Glad it's fixed and thanks for the update. It's always good to know when a solution is found so that it might help others and members aren't throwing out more suggestions at the issue.