C2 windshield washer pump repair

[Gerard F.]

Re: C2 windshield washer pump repair

Jerry,

Take a look at the upper 2018 part of this thread. I use a catheter syringe to force fluid through the pump inlet to see it spray at the nozzles. That way you know if the problem is not with blockage in the nozzles.

Next thing to check is if the washer pump is clicking when you push the switch. That checks the switch.

Next thing is to suck on the inlet to the pump. You should be able to build up a negative pressure. If not, it is the little rubble seals on the pump valve. I put in a new valve where one of the rubber seals had a reversed curvature and would not seal on the back pressure.

The last thing would be to check the bellows. See the upper part of this thread where there are pictures and references to other threads.

[Gerald C.]

Re: C2 windshield washer pump repair

Can I make the assumption that the valve with the inlet and outlets only goes together one way??? It seems to me, it does have only one way based on the tabs on one half of the valve body. Once assembled, no air is allowed to go in through the inlet. I put the two halves together before I put it on the wiper motor. Thoughts??

[Gerard F.]

Re: C2 windshield washer pump repair

Jerry,

I think they only go together one way as you say. But the problem I had was with the configuration of the rubber valves themselves.

Take a look at the photo of the two valves side by side in the photo above (May 30 2018 post), with the new white one next to the yellowed original.
The lower rubber valve is concave outward on the new one whereas the same valve is concave inward on the original. Also the new rubber valves are slightly smaller and more cheaply made than the old original ones.

Also, try some of that rubber conditioning grease that they use rubber seals on the rubber valves.

You should be able to blow easily into the inlet tube but not suck out.

Jerry

[Gerald C.]

Re: C2 windshield washer pump repair

Jerry,

Nothing is releasing through the inlet. I cannot push water nor air through these rubber valves. They are quite pliable when handled but will not allow air through.....

Jerry

[Gerard F.]

Re: C2 windshield washer pump repair

Jerry,

You are probably blowing into the wrong tube or it is in backward or upside down.

The valve has one inlet and two outlet rubber pieces. when assembled the inlet is usally on the bottom.

If you blow in the tube from the reservoir, you should be able to blow freely but not be able to suck air. for the two outlets it is the opposite you can suck fluid or air freely but not blow air or fluid.

If you cannot do the above the valve is installed wrong, or defective , or there is blockage in the tubes.

Jerry Fuccillo

[Gerald C.]

Re: C2 windshield washer pump repair

Jerry

Here's a picture on how I'm setting this valve up according to the included instructions. If I line the holes on each side of the inlet onto the pins on the back of the valve, I'm assuming it should line up. Am I missing the obvious???

Jerry

[Gerard F.]

Re: C2 windshield washer pump repair

Jerry,

Looks correct to me on the setup
The valve on the top with the six holes is the inlet, and the two others on the bottom is the outlet.
To test put the two parts together and hold them with a clamp.
Then put a tube on the outside part inlet, you should be able to blow through easily but not suck.
On the two outlet valves you should be able to suck freely but not blow.

If that works put it on the pump and try the same thing. It should work when the car is started and the windshield wiper switch pushed and you hear a click-click-click with the wind shield wipers going.

Jerry Fuccillo

[Gerald C.]

Re: C2 windshield washer pump repair

I may need a new kit. I put these halves together as indicated in the pictures attached and I cannot blow through the inlet.

[Gerald C.]

Re: C2 windshield washer pump repair

The rubber valves are very pliable

[Gerard F.]

Re: C2 windshield washer pump repair

Jerry,

Unbelievable. Did you put in the three circle rubber gasket that is off to the upper left in the top photo or is that a spare. If not put it in.
Try sucking on any one of the outlets. if the valves are pliable, it should be an easy suck, that is, if the three circle gasket is in place.

Can't believe this, save the kit you have and get another. Let us know where it came from.

Jerry Fuccillo

[Gerald C.]

Re: C2 windshield washer pump repair

Jerry,

Yes, that three circle gasket is a spare and there is one in the valve that I showed in the pictures. It's very frustrating! I'm going to order another kit and we'll go from there.

Thanks for your help.

Jerry