Intermittent Wiper - on all the time

[genedjr]

Well, I read through a dozen posts or so and I don't see my issue "exactly".

2001, 4.0L, ~145K miles.

I have disconnected the wiper switch and rainsense unit.
Wipers are still coming on intermittently.

It does not matter where I set the intermittent setting, the wipers wipe about every 10-15 seconds (I did not time them).
Suggestions?
...gene

Edit - What actually controls the intermittent action - or is there another logic board somewhere other than the wiper motor?  If not and the logic for the wipers is on the motor - it seems I am off to you-pull-and-pay again

Edit 2 - Well, I got out my service manual and all the logic is in the Motor assembly.  All that changes the signals are resistors in the various switches.  So I think that is the issue, the wiper motor assembly.  I will pull one tomorrow and change it out.

Edit 3 - I was going to post a DIY with pictures, but alas forgot.  Replacing the motor did the trick.  Just remember when you head to the junk yard to take your T-27 torx bit with your other normal junk yard tools.  There are three torx screws that hold the motor to the wiper sub-assembly.  And you'll need to manually rotate the motor to gain the clearance you'll need to remove the assembly.  On a difficulty scale of 1 to 10 this is definitely a 1.

[tigger]

Hey Gene, check for cold solder joints on the circuit board attached to the wiper motor. My GMC Jimmy's wipers were "possessed", lol. I fixed a few joints and no problems since. Good luck!

[genedjr]

Mar 29, 2015 22:26:43 GMT -6 tigger said:

Hey Gene, check for cold solder joints on the circuit board attached to the wiper motor. My GMC Jimmy's wipers were "possessed", lol. I fixed a few joints and no problems since. Good luck!

Thanks, but I am probably going to let sleeping dogs lie.  The junk yard replacement worked.
...gene

[tigger]

Completely understand that, haha!

Glad it worked!