mackrmodel686st Posted December 11, 2017 Share Posted December 11, 2017 I have a 93 ch613, the washer pump doesn't work with the button. I used a power probe and the pump works and also swapped out the switch but it didn't change anything. Is there a separate fuse for the washer pump or is it something in the wiring? Any help would be appreciated. Quote Link to comment https://www.bigmacktrucks.com/topic/51932-1993-ch613-washer-pump-doesnt-work/ Share on other sites More sharing options...
mackdumper Posted December 11, 2017 Share Posted December 11, 2017 Hi Puppy, r-models are notorious for passenger door wind/wshr tanks cracking over winter months and just cracking from bouncing around on job sites pot-holes etc, etc. I would try possibly blowing back thru all the rubber lines and especially w/w supply hose from door tank, any poss clogs from sediment particles and such in w/w tank. may be a temp fix, another 15 years would be a nice fix! good luck! Quote its a dirty job why do i like it so much? and life ain't easy,when your fat and greasy Link to comment https://www.bigmacktrucks.com/topic/51932-1993-ch613-washer-pump-doesnt-work/#findComment-387210 Share on other sites More sharing options...
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