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How-to

1990 Ford Bronco Washer Pump Replacement

1990 Ford Bronco · Repair · Moderate

Documented by SuperMotors from jboates’s photos

The windshield washer pump on a 1990 Ford Bronco is replaced at the reservoir. The nut and retainer are removed, the old pump is pried loose and twisted out, the new pump is tested with the old connector, and the new pump is installed. The reservoir is then refilled with washer fluid.

  1. Step 1

    Get the replacement washer pump and gather the tools. jboates bought the pump for a 1990 at Advance Auto Parts for around $16, and used a socket wrench with an 11mm socket, pliers and/or needlenose pliers, and a flathead screwdriver.

    This is what you'll need to get (For a 1990...got mine from Advance Auto Parts for around $16) (1990 Ford Bronco) These are the tools you'll need: - A socket wrench with an 11mm socket - Pliers and/or Needlenose pliers - Flathead screwdriver (1990 Ford Bronco)

  2. Step 2

    Take out the nut shown in the photo, which holds a bracket on the washer reservoir, and do not lose it. jboates notes he could not find replacement nuts with the washer built in at Home Depot.

    Take out this nut and don't lose it. (I haven't been able to find more at Home Depot that have the washer built in.) (1990 Ford Bronco)

  3. Step 3

    Pry the retainer out with the flathead screwdriver. jboates points out that bending or breaking the retainer does not matter, since a new one comes with the new pump.

    Take the Flathead screwdriver and pry out this retainer. Don't worry if you bend/break it, you get a new one with the new pump. (1990 Ford Bronco)

  4. Step 4

    Work the screwdriver into the three grooves on the pump and pry it loose inside the unit, then twist the pump out of the hole with the pliers. jboates warns that any washer fluid still in the reservoir will pour out of this hole.

    Now this is a little PIA! Use the screwdriver to bend/pry the washer pump inside the unit to loosen it. (there are three 'grooves' in the p… (1990 Ford Bronco)

  5. Step 5

    Get the washer fluid out of the reservoir before pulling the pump if you have not already. jboates says letting it drain out of the hose off to the right is very slow and he would just dump it. Clean the area around the opening so no dirt goes back in.

    You could let the fluid drain out of the hose off to the right. It's sllooowwww.....I say just dump it. Make sure to clean the area around… (1990 Ford Bronco)

  6. Step 6

    Compare the new pump against the old one before fitting it. jboates shows how badly deteriorated the old pump was.

    Nice little comparison of the new and old. (1990 Ford Bronco) Another shot at how bad the old one was. (1990 Ford Bronco)

  7. Step 7

    Reconnect the electrical connection taken off the old pump and test the new pump before reassembling anything.

    Use the connection you removed from the old pump to test the new one before you put it all back together. (1990 Ford Bronco)

  8. Step 8

    Install the new pump. The last photo, which jboates calls blurry, shows the new pump installed in the reservoir. The last step is to fill the reservoir back up with washer fluid; that is not photographed.

    Blurry picture of the new pump installed. Now just fill the res. back up with washer fluid and you're done. (1990 Ford Bronco)

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