Astra screen washer pump

[pooroldcodger]

The screen wash kept appearing in puddles underneath Mrs Codger's Astra.
having taken the inner wing off I discovered it was leaking. As they are not expensive I bought a new one off the internet and changed the old pump for the new one.
But, when I came to pull the stalk forwards for front screen wash, the rear screen got washed instead. The first thought I had was that perhaps I had put the pipes on the wrong way round, but I checked again and I haven't.
How does the pump direct the fluid to the correct nozzles?
This is what it looks like. There is a spout that fits into the bottom of the reservoir and 2 outlet pipes from the blue part which I assume is the valve.
At the moment I have put the old pump vback in, and it's working as normal (still leaking of course though). Could they have sold me the wrong pump?

 

[AppleSei]

what year/mark astra is it?

 

[pooroldcodger]

Mk4 (official prefix is Astra "G" 2000 year, 1.8CD petrol hatchback

 

[AppleSei]

was going to post this on AOC but you have already done that, there was a suggestion the wires may be wired in the motor the wrong way around, any chance of checking that or have you already?

 

[pooroldcodger]

Won't the plug only fit in one way?

 

[pooroldcodger]

A'h see what you mean now. I am hoping to receive a new pump in the post, so I'll let you know!

 

[pooroldcodger]

Update.
I got a new pump sent out.
I have discovered that the new pumps, when connected to a 12v battery, +ve to +ve, -ve to -ve, the water quirts out of the opposite nozzle than when you make the same connections with the original pump. So , yes, they are wired up differently. It can't put the plug in the other way as it won't fit the other way.
I suppose the moral of this story is buy original parts, not generic parts.

 

[inki]

"Just an idea" can you not open the plug & move the wires around or cut wires & reconnect to pump using new spade connectors.

 

[AppleSei]

Surely plenty of pumps on ebay or scrappers

 

[pooroldcodger]

Well to finally "close the file" on this one.
The supplier off Ebay refunded my money with good grace as their pumps didn't work on my car.
So I found an alternative supplier that was a bit dearer (but still massively cheaper than from the Vauxhall dealers) and their pump arrived today.
Having been bitten before, I tested this pump off the car first and it worked perfectly!
So I then fitted it to the car very quickly, and the windcreen got washed at the right command.
So I tested the rear screen just to be sure....
It didn't work.
However, having tested it off the car first I knew that it must have been a coincidental clogging up of the rear nozzle. I have had this happen before on the Punto.
Boy was this a determined blockage! I took the nozzle out, I poked it with a pin, I blew through it, I soaked it in hot water, and still something was blocking it.
So, in desperation, I rigged up a bowl of warm water with screen wash, a 12v battery, a length of piping, and one of the faulty pumps, and connected it up. That did the trick. After a few seconds of struggling water came blasting out!
It's now all back on the car and Mrs Codger is happy at last!
The moral(s) of that story are:
The cheapest isn't always the best.
And if your rear screen isn't washing, make absolutely sure that it is not just a blcoked nozzle before you start taking the pump out etc. The road salt and cold weather etc seem to make a perfect combination for blockages that take a lot of shifting!