MJ 4.0 Posted December 22, 2022 Share Posted December 22, 2022 My wipers work but move painfully slow on either high or low...they move like molasses in winter! Is it the wiper motor or voltage? Any input is greatly appreciated! I just bought this truck and am in the restorative process, (both me and the truck)! Link to comment Share on other sites More sharing options...
jpnjake Posted December 22, 2022 Share Posted December 22, 2022 Id suggest cleaning your ground for the wiper motor. Use @cruiser54’s website It tells you exactly how to do so Link to comment Share on other sites More sharing options...
coolwind57 Posted December 22, 2022 Share Posted December 22, 2022 I did a wiper write up a couple years ago. You may consider doing some or all of it: Link to comment Share on other sites More sharing options...
MJ 4.0 Posted December 22, 2022 Author Share Posted December 22, 2022 Awesome help! Thank you! Link to comment Share on other sites More sharing options...
cruiser54 Posted December 23, 2022 Share Posted December 23, 2022 Might as well do it all!! Link to comment Share on other sites More sharing options...
Pete M Posted December 28, 2022 Share Posted December 28, 2022 sorta on this subject, does the 97+ motor/gear/linkage assembly work in the older Jeeps? I know the arms swap, but how far down the rodent hole does the swap-ability go? Link to comment Share on other sites More sharing options...
Minuit Posted December 28, 2022 Share Posted December 28, 2022 39 minutes ago, Pete M said: sorta on this subject, does the 97+ motor/gear/linkage assembly work in the older Jeeps? I know the arms swap, but how far down the rodent hole does the swap-ability go? I have either a '97 or '98 linkage in my 91 with the original motor swapped on, because the plugs are different. At some point I'll swap a newer motor in to see if it improves the speed, because my friend's 2000 XJ has wipers like you'd expect on a normal car. Link to comment Share on other sites More sharing options...
acfortier Posted December 28, 2022 Share Posted December 28, 2022 I think I swapped to a '97+ motor, assuming the plugs for '91 - '96 were the same: EDIT: May be the same motor, just a difference in plug between Renix and HO years? Unsure. Link to comment Share on other sites More sharing options...
eaglescout526 Posted December 28, 2022 Share Posted December 28, 2022 Ohhhh boy. So in 91 the company that made the wiper motors went out of business. When Chrysler found a new supplier, they changed the plugs to match. Chrysler made an adaptor harnesses to avoid cutting and splicing of the wiper motor harness. So it’s possible that late HO MJs might already have this change over. Link to comment Share on other sites More sharing options...
Pete M Posted December 28, 2022 Share Posted December 28, 2022 11 minutes ago, eaglescout526 said: Ohhhh boy. So in 91 the company that made the wiper motors went out of business. When Chrysler found a new supplier, they changed the plugs to match. Chrysler made an adaptor harnesses to avoid cutting and splicing of the wiper motor harness. So it’s possible that late HO MJs might already have this change over. interesting. any adapter harnesses left out there in dealershipland? Link to comment Share on other sites More sharing options...
eaglescout526 Posted December 28, 2022 Share Posted December 28, 2022 8 minutes ago, Pete M said: interesting. any adapter harnesses left out there in dealershipland? Yes. I looked I think a week or so when 88mjsally scored one. There’s 7 out there. Link to comment Share on other sites More sharing options...
Minuit Posted December 28, 2022 Share Posted December 28, 2022 2 hours ago, eaglescout526 said: Yes. I looked I think a week or so when 88mjsally scored one. There’s 7 out there. Gimme Link to comment Share on other sites More sharing options...
eaglescout526 Posted December 28, 2022 Share Posted December 28, 2022 25 minutes ago, Minuit said: Gimme Okie dokie. I’ll shoot ya a PM when I have it. Link to comment Share on other sites More sharing options...
acfortier Posted December 28, 2022 Share Posted December 28, 2022 Interesting! Would have saved me from having to splice the new connector on the motor, lol Link to comment Share on other sites More sharing options...
WranglerMangler Posted January 8, 2023 Share Posted January 8, 2023 Did the OP ever find a solution to his slow wipers? What was it? Can you swap in a newer XJ wiper motor? so many unanswered questions. Link to comment Share on other sites More sharing options...
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