James K Gladstone , NJ March 29, 2015 Appliance: Maytag Top Loading Washer A712 Maytag Washer A712: The injector valve on our roughly 27 year old maytag washer was leaking. How to replace Washer Injector Valve And Nozzle Assembly. Ordered the Injector Valve and nozzle. Replaced the leaking part. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes