78 windshield washer question

[78C10BigTen]

So my intermittent wipers in my 78 work kinda, ive deduced that its the delay module. The washer function has never worked, no responce at all. Yesterday goofin with the switch i push the washer and i hear a click out under the hood but no spray anybody have an idea where i can look next to get sprayers working? Am i missing a secret?

 

[Rickf]

So my intermittent wipers in my 78 work kinda, ive deduced that its the delay module. The washer function has never worked, no responce at all. Yesterday goofin with the switch i push the washer and i hear a click out under the hood but no spray anybody have an idea where i can look next to get sprayers working? Am i missing a secret?

Make sure the intake filter in the tank and the windshield squirters are free of crud. I had the same issue, ended up replacing the pump.

 

[bucket]

I've grown to hate the failure prone internal type washer pumps. I always wire an external washer pump to the factory wiring.

 

[C10MixMaster]

So my intermittent wipers in my 78 work kinda, ive deduced that its the delay module. The washer function has never worked, no responce at all. Yesterday goofin with the switch i push the washer and i hear a click out under the hood but no spray anybody have an idea where i can look next to get sprayers working? Am i missing a secret?

sounds like the motor is trying to work. you can remove it from the resivor , jumper wires to it and alternate the current +/- , -/+ and tap on it with a screw driver handle. i might break loose and work again.

 

[78C10BigTen]

sounds like the motor is trying to work. you can remove it from the resivor , jumper wires to it and alternate the current +/- , -/+ and tap on it with a screw driver handle. i might break loose and work again.

Mine isnt in the resivour its on the wiper motor

 

[C10MixMaster]

Mine isnt in the resivour its on the wiper motor

sorry forgot the early ones were part of the wiper motor. try dissembling and cleaning it probably a sticky valve or they do sell a rebuild kit for that pump that is about $15

 

[bigcountry78]

sorry forgot the early ones were part of the wiper motor. try dissembling and cleaning it probably a sticky valve or they do sell a rebuild kit for that pump that is about $15

Who sells the rebuild kit? That’s the only thing on my truck that doesn’t work right now.

 

[idahovette]

My Napa store used to have the valve and o-ring kits in stock

 

[C10MixMaster]

Who sells the rebuild kit? That’s the only thing on my truck that doesn’t work right now.

all my aftermarket truck catalogs show it there is a rebuild kit and or a pump assembly available. classicchevroletparts.com classicparts.com lmctruck.com