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Windshield, headlight, rear washers and check valves Posted by Peter [Email] (#2804) [Profile/Gallery] (more from Peter) on Mon, 10 Jan 2005 20:10:50 In Reply to: Passenger & Rear windshield washer, Craig W, Mon, 10 Jan 2005 19:32:05 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Washers usually can be fixed by replacing the check valves, no tools required. I have replaced all but the rear at least once, some twice.
5-10 minutes per nozzle for cleaning and replacement. Some people soak the check valves and nozzles in vinegar or other cleaner (never worked for me).
Windshield, headlight, and rear washer nozzles are all on the same pump, but use different check valves. Hoses lead from the pump forward to the headlights, and back toward the windshield and rear. There are a total of four check valves I know of, passenger, driver, headlight, rear, plus 2-way connectors.
The plastic connecting T's and L's are actually the check valves that regulate fluid pressure. The straight plastic pieces are just connectors between hoses.
If at least some washers work, the pump is probably ok. If nothing works, the pump is about $60, and sometimes can be found used from a parts lot for a lot less. Located behind the driver side wheel well, at the washer reservoir.
There are small openings under the washer nozzles accessible when you lift the hood. Pull the hoses out about an inch from under the hood carefully to get to the check valves.
Unplug the 'T' (driver side) and 'L' (passenger side) one at a time, and verify there is fluid coming out of the unplugged hose when you activate the washer. (hose could be plugged, although this has never happened on my car)
Clean the washer nozzles using a thin wire from the outside, and a toothpick or similar from the inside. Replace any check valves that do not allow fluid to flow to the washer nozzle. In the winter, put a little soap on the ends to help get the hose back on.
Fluid should now come out of the nozzles.
Check valves are about $9 at the Saab dealer, about $4 at my local Volvo dealer, and $2-3 online. example, eEuroparts.com $2.95.
Passenger side check valve (2-way "L") p/n 5142757
Driver side check valve (3-way "T") p/n 5142765
Headlight wiper check valve, behind grille on the driver side, 3-way
Rear check valve, 2-way I think (never replaced that one)
posted by 69.211.93...
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