89 Jeep Comanche wiper motor problems...

[Andy in Pa]

I just can't seem to get the wiper motor to run well in this MJ.  I replaced the motor with a new one, and the wipers are still slow and get stuck on the windshield.  The linkage is slightly loose but moves freely with no binding.  The old wiper motor was doing this as well.  It has the delay module under the dash, and I have tried to just take that out of the circuit, but it doesn't seem to work at all at that point.  I feel like it could be that the new motor I got is also bad, but I suspect the delay module may be bad too.  Will any year delay module work up until 96?  Has anyone tried this?  I just realized I have one in my 96 crawler XJ, so I can pull it and try it if they are compatible.  Do you have any other recommendations?

Thanks...

 

[acfortier]

Have you followed all the steps here: 

Specifically, adding the ground may help?

[ghetdjc320]

 

[Andy in Pa]

1 hour ago, acfortier said:

Have you followed all the steps here: 

Specifically, adding the ground may help?

Yes, took the entire assembly out and greased the bushings, added the ground wire and put a new wiper motor in.  I did not take apart and expose the gearing on the motor, but it was brand new so I didn't think it was important.  Still did the same thing.

 

[Andy in Pa]

Has anyone tried a different wiper intermittent module from an MJ or XJ from 91-96?  If not I have one pulled and am going to give it a shot.

 

A.

[ghetdjc320]

5 minutes ago, Andy in Pa said:

Has anyone tried a different wiper intermittent module from an MJ or XJ from 91-96?  If not I have one pulled and am going to give it a shot.

 

A.

I have used a YJ module. Worked just like the MJ one

[Andy in Pa]

3 minutes ago, ghetdjc320 said:

I have used a YJ module. Worked just like the MJ one

Ok, the one I have says it will work for an XJ or a YJ right on the cover.  Do you know what year YJ it was from? 

[ghetdjc320]

3 minutes ago, Andy in Pa said:

Ok, the one I have says it will work for an XJ or a YJ right on the cover.  Do you know what year YJ it was from? 

I don’t recall but iirc they are all the same

[Andy in Pa]

19 hours ago, ghetdjc320 said:

I don’t recall but iirc they are all the same

Onto the next plan, that didn't work either.  I am going to get a new wiper motor and recheck all the wiring to the wipers.  Does anyone have an actual schematic for the wiring to the motor, from the intermittent module?  Would like to see what voltage I should expect on each wire, and at what point.  Would be nice to know what each wire does going into the intermittent module as well if its available.

[cruiser54]

I've added a ground at the motor going to somewhere under the cowl panel before. 

[Andy in Pa]

Ok, I was finally able to resolve this problem.  It turned out the NEW wiper motor I put in was bad.  I swapped out the wiper motor, cleaned and regreased the joints, and low and behold it works great now.

 

A.

[cruiser54]

Made where? 

[zomeizter]

New bad stuff drives this here hippie insane...glad you got it sorted out, cheers.

[cruiser54]

[zomeizter]

2 hours ago, cruiser54 said:

Ha!

[cruiser54]

Like it? I had it custom made. 

[PIKE]

Do we always have a choice?

 

I wouldn't trade my Milwaukee cordless tools for anything.

 

China learned how to make stuff just as good as we do.  Its all about how it is specified to be made.

 

Go to White's boots and see how much it cost to buy a pair of hand made in America boots.

 

I buy made in USA when I can. Its more complicated than just saying made in China is crap.