pretty bad
Typical Repair Cost:
Average Mileage:
59,652 miles
Total Complaints:
1 complaints

Most Common Solutions:

  1. spray silicon inside the window rails (1 reports)
1999 Ford F-150 windows / windshield problems

windows / windshield problem

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1999 Ford F-150 Owner Comments

problem #1

Mar 152009

F-150 Lariat 5.4L

  • Automatic transmission
  • 59,652 miles


For all you auto owners with power windows. If one of your power windows stops working do not assume that it is the power window motor or regulator as I did. I assumed this because after talking to multiple mechanics this is what they say goes wrong. I did not want to take it to a dealer as the cost for the motor replacement was $300. I removed the motor myself (BE VERY CAREFUL DOING THIS, YOU MUST HAVE THE WINDOW JAMMED CLOSED, I USED A DOOR STOP. IF YOU DO NOT THEN WHEN YOU REMOVE THE MOTOR THE REGULATOR COULD SNAP LIKE A GUILLOTINE AND TAKE OFF A FINGER OR WORSE.) First I tested the motor. Just hook up wires from the positive and negative of your truck battery. If the motor is good then it will turn. My motor was good but again a mechanic said if you can stop the motor from turning with a pair of pliers then it probably has lost its torque & needs replacement. This seemed to be the case. So I went to an auto wrecker where I tried a motor for $65.00. The wrecker was great. He let me install the unit on site & try it. The shock was that the problem was the same so I did not keep the motor. No window movement. The wrecker said that it must be the regulator. I removed the door stop & moved the window up & down manually. Everything seemed fine but it was not very easy to move it up & down. It should be very easy. The wrecker still thought it was possibly a broken spring in the regulator but I decided to go home without purchasing anything & try something else. I lowered the window manually about half way down, put in the door jam to prevent any further surprise moves, then installed the motor again. The window moved but very slow & it sounded like the motor was really working hard. I thought there must be some way of lubricating the window channels which guide the window up & down. YES, clear silicone lubricant. I sprayed the channels & now the window works like new. I wonder how much I would have been charged at a dealer? I am thinking probably a motor & regulator $600 plus. A little spray fixed the problem. I am amazed & also very ticked off that a mechanic would not say to try this first as it takes a whole 2 minutes. Since the window was closed when it stopped working what I would have done now knowing what I know is placed my hands on both sides of the window & pushed down while someone else pushed the down button. Once you have the window down about 1/2 way then you can spray the silicone in rails & let it dribble all the way down the channel. Hope this saves some of you money. MICK

- , Langley, BC, Canada

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