1978 GMC Washer Tubes and Nozzles - The 1947 - Present Chevrolet & GMC Truck Message Board Network

roadrunnermoore · 07-30-2014, 06:23 PM

I need help on how the windshield washer tubes and nozzles are run. Just bought my 78, pump works fine, but the tubes were all tied up and I have no idea how there were originally run or were the nozzles should be mounted. Thanks

willett · 07-31-2014, 01:24 AM

Nozzles go in the louvres on the back of the hood, there should be mounting screw holes if you look closely.

Pump has one inlet and 2 outlets. Intake for the pump has to be at the bottom of the washer bottle. Not much to it. The pump kinda sucks to be honest and unless your trying to keep it stock I would recommend upgrading to an electric pump. Just remember that the switch controls the ground, not the hot side.

roadrunnermoore · 07-31-2014, 05:49 AM

Thanks, Pictures would be a big help.

07-30-2014, 06:23 PM	#1
roadrunnermoore Registered User Join Date: Jul 2014 Location: Faulkner, MD Posts: 3	1978 GMC Washer Tubes and Nozzles I need help on how the windshield washer tubes and nozzles are run. Just bought my 78, pump works fine, but the tubes were all tied up and I have no idea how there were originally run or were the nozzles should be mounted. Thanks

07-31-2014, 01:24 AM	#2
willett Another Day, Another Dollar Join Date: Nov 2008 Location: North Vancouver, BC Posts: 1,316	Re: 1978 GMC Washer Tubes and Nozzles Nozzles go in the louvres on the back of the hood, there should be mounting screw holes if you look closely. Pump has one inlet and 2 outlets. Intake for the pump has to be at the bottom of the washer bottle. Not much to it. The pump kinda sucks to be honest and unless your trying to keep it stock I would recommend upgrading to an electric pump. Just remember that the switch controls the ground, not the hot side. __________________ -78 K20 Cheyenne 454 long box, 4" lift, 35" MT's, '84 cab, '80 box "its hip to be square"

07-31-2014, 05:49 AM	#3
roadrunnermoore Registered User Join Date: Jul 2014 Location: Faulkner, MD Posts: 3	Re: 1978 GMC Washer Tubes and Nozzles Thanks, Pictures would be a big help.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.