Hi everyone
A common issue with millions of cars I am sure.
My passenger side has a weak stream, barely reaches above the blade.
I took the system apart to discover it is on a single feed pipe (I had simply assumed two), delivers fluid and splits off somewhere. So from reservoir to splitter, flow seems fine as the stream is good on driver side.
I checked nozzles and both working fine. I swapped them to test. Pipes seem clear and unobstructed.
I was unable to remove clips from under the bonnet unfortunately but found the split nozzle, as I learnt today, called a windscreen washer check valve. Even found the part number, 85321-28020.
Tested the valve and seems clear and functional. I took a syringe and squirted water through it. The delivery of water when doing that is far stronger on the valve supplying the driver side (which works fine) than the valve supplying water to the passenger side (which is where the problem lies).
I am unsure however, if this is how it is intended to work. I am inclined to think not. Why do I ask? The pipe from the valve to the passenger side (weak stream) has about 25cm pipe. Whereas the length of pipe from valve to driver side (stream that is fine) is far longer, probably two to three times longer or more. I can't see as the trim bonnet trim can't be removed but from where the check valve is located, it is obvious. Or so it seems. Is the difference to compensate for the pipe length?
Is my valve defective? Online part seems to be £15 ish, not a great sum, but for what it is, rather expensive. Is there an aftermarket parts, £2 from Halfords or something?!
Thoughts and suggestions appreciated!