How To Replace Windshield Wiper Transmission 03-07 Saturn Ion
Difficulty: Intermediate · About 75 min · Saturn Ion
Replace the windshield wiper transmission on a 2003–2007 Saturn Ion by removing the wiper arms and cowl panel, transferring the motor, and setting the arms after testing the linkage.
Tools you will need
- 13mm socket and ratchet
- 10mm socket and ratchet
- 7mm socket
- T27 Torx driver
- Wiper arm puller
- Flat blade screwdriver
- Wire ties
Parts and supplies
- Wiper transmission linkage
Steps
- Remove wiper arms and cowl trim
Pry off the wiper arm caps and remove the 13mm nuts. Use a wiper arm puller to release the arms from their splined posts, then remove the cowl panel clips and fasteners and disconnect the washer hose.
- Remove the wiper transmission
Support the cowl panel out of the work area without stretching its wiring or hoses. Remove the three 10mm linkage bolts, disconnect the motor harness, and lift the transmission out of the vehicle.
- Transfer the wiper motor
Inspect the arm splines and replace damaged wiper arms as needed. Separate the motor from the old linkage, position it on the new transmission, and secure the motor bracket screws without exceeding the vehicle's specification.
- Install the new linkage
Place the transmission into position and start its mounting bolts by hand. Tighten the fasteners to specification, reconnect the motor harness, and check that the cowl weatherstrip is correctly seated before refitting the panel.
- Set and install the wiper arms
Cycle the wipers and switch them off so the motor parks at its stop position. Fit the passenger and driver arms at their correct resting marks, tighten their nuts to the vehicle's specification, then reinstall caps and cowl hardware.
Check your vehicle’s repair manual for exact specifications and fit.