Wiper motor question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Solver · 08-05-2007, 10:15 PM

The wiper motor is going out on my truck. It moves real slow at both speeds so I guess it's time to replace it. This truck has A/C so it is unbelievably tight with hoses and such back up underneath the dash. Anyway the question is which wiper motor will I have? I ask this because LMC shows three different wiper motors for our trucks. 67-68 one speed --67-72 3 terminal 2 speed and 67-72 4 terminal 2 speed. I never knew till I came across this there was any difference in all the years of our trucks. Any way is there any way to know before ripping all that out under there which it might be for ordering or salvage yard searching. I have an extra that I think is a 3 terminal but hate to rip everthing out only to find out mine is 4 terminal . Just wondering if there were guide lines on which got what?
truck is 72 cheyenne super

Sammy · 08-05-2007, 10:53 PM

Not real sure what you have in yours. But if you pull the glove box ( cardboard) and the hose off the defrost tube that is in your way then lay on your back upside down you can pull the plug off the wiper motor. There should be two plugs the upper one is the plug for the wiper motor the lower plug with two wires is the one for the squirter pump which is attached to your wiper motor. Then you will be in the know exactly what you have. Wouldn't hurt to remove your cowl under your wiper arms remove & lub those mechanical arms with some light weight oil or WD40 or such.

08-05-2007, 10:15 PM	#1
Solver Registered User Join Date: May 2000 Location: Storm Lake, Ia Posts: 1,449	Wiper motor question The wiper motor is going out on my truck. It moves real slow at both speeds so I guess it's time to replace it. This truck has A/C so it is unbelievably tight with hoses and such back up underneath the dash. Anyway the question is which wiper motor will I have? I ask this because LMC shows three different wiper motors for our trucks. 67-68 one speed --67-72 3 terminal 2 speed and 67-72 4 terminal 2 speed. I never knew till I came across this there was any difference in all the years of our trucks. Any way is there any way to know before ripping all that out under there which it might be for ordering or salvage yard searching. I have an extra that I think is a 3 terminal but hate to rip everthing out only to find out mine is 4 terminal . Just wondering if there were guide lines on which got what? truck is 72 cheyenne super __________________ 1972 Cheyenne Super 20 LWB-Blue 1972 Cheyenne Super 10 LWB-Black 1972 Cheyenne Super 10 LWB-Red 1972 Cheyenne Super 10 LWB-green 1972 GMC 4x4 LWB-White 1971 Cheyenne 10 LWB-Ochre 1971 Cheyenne 20 Longhorn-Copper 1971 Cheyenne 20 Longhorn-Black 1969 Custom 10 LWB-lt blue 1968 GMC 3/4 ton-green 1968 1/2 ton swb stepside-silver 1967 Chevrolet CST 10 LWB-green 1967 Chevrolet custom 20 LWB-Maroon

08-05-2007, 10:53 PM	#2
Sammy Registered User Join Date: Apr 2000 Location: Bonne Terre, Mo Posts: 3,005	Re: Wiper motor question Not real sure what you have in yours. But if you pull the glove box ( cardboard) and the hose off the defrost tube that is in your way then lay on your back upside down you can pull the plug off the wiper motor. There should be two plugs the upper one is the plug for the wiper motor the lower plug with two wires is the one for the squirter pump which is attached to your wiper motor. Then you will be in the know exactly what you have. Wouldn't hurt to remove your cowl under your wiper arms remove & lub those mechanical arms with some light weight oil or WD40 or such. __________________ '69 Chevy Long Fleet & '71 GMC Short Step & Project "ODD BALL" "You can wash a pig, soak it in most expensive perfume. In the end it is still just a pig." ODD BALL build thread http://67-72chevytrucks.com/vboard/s...d.php?t=478629"



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