weird windshield washer

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Dave - 23 Oct 2007 06:54 GMT

97 Chevy 1/2 ton. Windshield washer sprays, but spray doesn't come
out with enough force to reach the windshield. Blew out the lines
with the compressor. Checked the washer spary nozzles (clear). Blew
backwards through the line to make sure no restrictions. Checked the
pump (OK). Replaced the pump, just in case. Fresh fluid in tank.

Damn thing still doesn't spray right.

Any ideas what I'm missing?

Thanks

Dave

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genius - 23 Oct 2007 15:25 GMT

> 97 Chevy 1/2 ton. Windshield washer sprays, but spray doesn't come
> out with enough force to reach the windshield. Blew out the lines
[quoted text clipped - 9 lines]
>
> Dave

My .02 is that there's either a bad ground or resistance somewhere not
letting the full 12v get to the motor. Did you check the voltage at
the motor with a meter?

HTH,

Derek

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Dave - 23 Oct 2007 21:55 GMT

> > 97 Chevy 1/2 ton. Windshield washer sprays, but spray doesn't come
> > out with enough force to reach the windshield. Blew out the lines
[quoted text clipped - 17 lines]
>
> Derek

Did that today. Getting 13.6 volts with good ground and no drop.
Driving me crazy to the point I'm guess I'll just find another inline
pump motor to install.

Dave

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Randal O'Brian - 24 Oct 2007 16:48 GMT

>> > 97 Chevy 1/2 ton. Windshield washer sprays, but spray doesn't come
>> > out with enough force to reach the windshield. Blew out the lines
[quoted text clipped - 23 lines]
>
> Dave

Did you check the tank for crud on the bottom? Might be
plugging the suction line when pump runs.

Randy

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Dave - 24 Oct 2007 18:15 GMT

> Did you check the tank for crud on the bottom? Might be
> plugging the suction line when pump runs.
>
> Randy

Yeah, I checked that too. I have pretty good flow, the fluid will
squirt about 8" out of the line but not good pressure through the
line. Thought a new pump would fix it, but it's exactly the same.
I'm stumped.

Dave

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nonsense - 24 Oct 2007 21:10 GMT

>>Did you check the tank for crud on the bottom? Might be
>>plugging the suction line when pump runs.
[quoted text clipped - 5 lines]
> line. Thought a new pump would fix it, but it's exactly the same.
> I'm stumped.

Replace what you haven't replaced yet.

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David & Robin Johnson - 24 Oct 2007 21:14 GMT

>> Did you check the tank for crud on the bottom? Might be
>> plugging the suction line when pump runs.
[quoted text clipped - 7 lines]
>
> Dave

The same techniques for finding a electrical problem apply to this type of
fluid flow problem. You know you have good pressure at the pump. Move on
down line. Beyond the pump there is a coulple dollars worth of line, maybe a
couple fittings and then the spray nozzles. Hook the line back to the pump
and move to the next connection. Check for pressure(voltage if you are
checking electrical) Process of elimination. But for the money you would
probably be better off just to replace the lines all the way to the spray
nozzles. Use only windshield washer fluid. In the summer some people try to
use soap and water which do not protect against corrosion in the system. A
little piece of rust in the line can cause havoc. Do not use glass cleaner
ever. Amonia will degrade the rubber lines. A flake of rubber will plug you
up.

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James and Jenn - 28 Oct 2007 06:10 GMT

replace the nozzels, I've had this happen, the nozzels brake oor hard water
build up happens an dthat will probably fix it!

> 97 Chevy 1/2 ton. Windshield washer sprays, but spray doesn't come
> out with enough force to reach the windshield. Blew out the lines
[quoted text clipped - 9 lines]
>
> Dave

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