How to Replace a 2004 Chevy Impala Windshield Washer Pump

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General Motors began producing the Chevrolet Impala in 1957. The 2004 Chevy Impala has a 3.8-liter engine that can pull 240 horsepower. Like most vehicles, the windshield-washer pump pumps solvent through the washer system. The solvent exits the nozzles on the hood and sprays onto the windshield, aiding the action of the wiper blades in cleaning off rain and debris. The wiper pump is attached to the windshield-washer reservoir, which resides in front of the inner fender well on the right side of the vehicle. Replacing this pump is a straightforward task that can be finished within an hour.

Things You'll Need

  • Socket wrench
  • Pick

Instructions

  • Kneel beside the front passenger-side tire and note the inner fender well, or splash screen, which is most likely covered in debris, and the bolt attaching the fender well to the inner bumper.

  • Remove this bolt using the socket wrench and tuck the fender well behind the tire, uncovering the cavity housing the windshield-washer tank and the washer pump.

  • Unplug the power cord feeding the pump and the delivery hose attached to the bottom pump nipple.

  • Grip the pump in both hands and pull it free of the windshield-washer tank tabs. Move aside the inner bumper for extra room to work if you need to.

  • Insert the head of a pick under the washer grommet and pry the grommet off.

  • Pull the grommet off the new washer pump and insert it into the windshield-washer reservoir.

  • Insert the shoulder of the new pump into the grommet on the washer tank.

  • Attach the power cable and the delivery hose to the new pump.

  • Close the inner fender well and replace the bolt attaching the fender well to the inner bumper.

References

  • "Haynes Repair Manual: Chevrolet Lumina, Monte Carlo & Impala 1995 thru 2005"; Jeff Kibler and Ken Freund; 2007
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