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Old 11-03-2023, 10:07 PM   #10
MS66
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Join Date: Jul 2011
Location: Florence, MS.
Posts: 92
Re: Windshield washer pump

Quote:
Originally Posted by RustyPile View Post
It can be done, but it's biotch to do it that way.. The pump bolts to the motor, it's just difficult to access those little bolts.. Removing the seat gives you room to lay out on the floor while reaching up under the dash..

Here's an alternative method I used if you're interested.. Install a "universal reservoir" with the pump attached to it.. Disconnect the wires at the OG pump and route the wires from the new pump to that plug.. The new pump will be activated from the original wiper switch.

The plus to doing it this way is all the water lines are now outside the cab, no more wet carpet from a leaky hose or pump..

[EDIT] If you go this route, it's not necessary to remove the old pump..
Best way! ^^^ Getting to that wiper motor is some Houdini shyte!
Quote:
Originally Posted by 67C10Step View Post
Instead of rebuilding my old pump this is the route I took. This is an early 1990's S10 reservoir with pump, if I remember correctly. Made a short wiring harness, routed it through the fender with the fluid hose, and even used one of the holes in the firewall grommet for the old hoses as the pass through for the wiring. I think it pumps better than the old units ever did.
Two thumbs up.

Quote:
Originally Posted by RustyPile View Post
The wiper motor has a built-in park switch.. When you turn the wipers off at the wiper switch, the wipers will continue to run until the blades reach the park position. The built-in park switch then turns the wiper motor off.. If the wipers stop immediately upon turning off the wiper switch, the park switch inside the wiper motor is defective..
I've had some old Chevies do that, so far my current truck isn't.
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