2009 F150 Lariat, the drivers side window works 50% of the time. Ive replaced the switch and am still having problems. Should I replace entire motor/regulator assembly?

5

Asked by Jul 14, 2016 at 03:26 PM about the 2009 Ford F-150 Lariat SuperCrew LB 4WD

Question type: Maintenance & Repair

2 Answers

39,855

If you put a new switch in it I would replace the window motor.

16,570

It's a DC motor. Remove the motor and apply twelve volts to the terminals. If the motor works it's fine. If, when the window does work, you noticed it goes up and down slower than usual, replace the motor.

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