Quick test, Pull the hose off the pump in question, install a long hose on the pump, test the system electrically (by direct jumper or the stalk, washer fluid flows?
YES>The test for line to nozzle blockage. Simple
NO> Check/replace pump, intake filter, clean reservoir with bleach solution.
You can bench test the little monsters if you are so inclined. Most just replace them all as they are under $25 US.
NOTE: Do NOT use shop compressed air to clean/test lines. It will blow off and trash every connector and nozzle in the lines. You only need a few PSI to test the lines. Water does not compress very well.
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2005 X5 4.8IS
The
Blue ones are always FASTER....
Current Garage:
2005 X5 4.8is
2002 M5 TiSilver
2003 525iT
1998 528i
Former Garage Stable Highlights
2004 325XiT Sport
1973 De Tomaso Pantera, L Model
1970 Dodge Challenger T/A 4 sp Alpine White
1970 Dodge Challenger T/A 4 sp GoManGo Green
1971 Dart Sport, “Dart Light” package
1969 Road Runner 383
1968 Ply Barracuda 340S FB Sea-foam Green