Wipers are slow, then stop. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

billybobjimmyjoejack · 01-05-2012, 11:36 AM

I have a 79' GMC with the standard two speed wiper switch. After the wipers have been running for a while they will start to slow down then eventually stop. If I leave the switch "ON" they eventually start back up. If I turn the switch "OFF" and "ON" a few times eventually they come back on. When the wipers come back on they work fine for sometime and other times they don't.

77chevyinline6 · 01-05-2012, 08:30 PM

check the switch and wiring and defianatly your wiper motor its prob that

sethv · 01-05-2012, 09:44 PM

Check your fuse, mine was having similar issues and I took the fuse out and cleaned the contacts, and it solved it.

motornut · 01-06-2012, 12:52 AM

My 78 jimmy switch pushed out the back
Was ez to fix , the switch posted in thread below
Sometimes the copper ground strip is bad/green
Posted via Mobile Device

cory d · 01-06-2012, 01:21 AM

a while ago i was driving at night and my lights dimmed and my wipers slowed down to a snails pace. it ended up being a connection to my alternator, it was loose adn dirty. i cleaned it up a little and plugged it back in and it fixed the problem.

patrickth · 01-06-2012, 11:49 AM

The first thing I always check in this situation is the ground wire. 9 times out of 10, its going to be the issue with the symptoms you describe.

01-05-2012, 11:36 AM	#1
billybobjimmyjoejack Registered User Join Date: Jan 2012 Location: Portland, OR Posts: 15	Wipers are slow, then stop. I have a 79' GMC with the standard two speed wiper switch. After the wipers have been running for a while they will start to slow down then eventually stop. If I leave the switch "ON" they eventually start back up. If I turn the switch "OFF" and "ON" a few times eventually they come back on. When the wipers come back on they work fine for sometime and other times they don't.

01-05-2012, 08:30 PM	#2
77chevyinline6 Registered User Join Date: Dec 2011 Location: mount airy NC Posts: 308	Re: Wipers are slow, then stop. check the switch and wiring and defianatly your wiper motor its prob that __________________ 77 c10 (went from a inline 6 to 350) (converted to 3 speed in the floor) 350: mild cam, holley 600cfm 4bbl, summit stage 1 intake, accel billet distributer, flowtech headers, 2 1/4" exhaust with glasspacks, powermaster 160a alternator.

01-05-2012, 09:44 PM	#3
sethv Registered User Join Date: May 2011 Location: Bradford, PA Posts: 395	Re: Wipers are slow, then stop. Check your fuse, mine was having similar issues and I took the fuse out and cleaned the contacts, and it solved it. __________________ 1981 K10 Scottsdale 305 ci \| TH350 \| NP208 \| 60k miles

01-06-2012, 12:52 AM	#4
motornut 78K & 79C Jimmys Join Date: Nov 2009 Location: Ottawa Ont CANADA Posts: 7,901	Re: Wipers are slow, then stop. My 78 jimmy switch pushed out the back Was ez to fix , the switch posted in thread below Sometimes the copper ground strip is bad/green Posted via Mobile Device __________________ John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350

01-06-2012, 01:21 AM	#5
cory d Registered User Join Date: Dec 2011 Location: Arlington WA Posts: 1,728	Re: Wipers are slow, then stop. a while ago i was driving at night and my lights dimmed and my wipers slowed down to a snails pace. it ended up being a connection to my alternator, it was loose adn dirty. i cleaned it up a little and plugged it back in and it fixed the problem.

01-06-2012, 11:49 AM	#6
patrickth Registered User Join Date: Nov 2011 Location: Bellingham, WA Posts: 72	Re: Wipers are slow, then stop. The first thing I always check in this situation is the ground wire. 9 times out of 10, its going to be the issue with the symptoms you describe.



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