Window motor loses power.
#1
Window motor loses power.
Well, my 1994 ranger has this thing where it will work ok for a couple roll ups and downs, and then it seems like it loses power almost like the battery is dieing. I know that obviously isn't the problem, but I don't get why I will get back in the truck the next day, and it works fine for a couple roll ups, and downs again. It's weird, almost like it recharges. Any thoughts would be very helpful.
#2
#3
when you roll the window up and down look at your dome light, and see if it dims, and if it does the motor has high resistance. That will cause the circuit breaker to trip and when it cools down, the breaker will reset. If the window stops working, bang on the door panel while holding the button. The motor might be worn out causing the motor to stick.
#6
I have a slowing motor as well. I just re-lube the regulator and works fine again. There is a track with a shoe sliding side to side in. You need to lube this top and bottom. Also check your switches for corrosion on both windows. This will cause it too.
Make sure you clean the glass. If you got some tree sap on it will not move well either.
Make sure you clean the glass. If you got some tree sap on it will not move well either.
#8
when you roll the window up and down look at your dome light, and see if it dims, and if it does the motor has high resistance. That will cause the circuit breaker to trip and when it cools down, the breaker will reset. If the window stops working, bang on the door panel while holding the button. The motor might be worn out causing the motor to stick.
dimming is from a high current load on the battery....
Do a google search on OHMS LAW
#9
i understand ohms law pretty well, but when there is high resistance it will draw more current. Now, when you let your window all the way down and hold the button even after the window is all the way down. The circuit breaker will break because of the resistance the motor creates, to prevent damage. The window motor works just like a starter. If a starter motor has alot of resistance, it will require more current to turn the motor over. Which means there will be more of a draw, pulling alot more amps then a normal motor would pull. Resistance is like a water restriction in a water pipe. It will require to put more pressure on that restriction to get the volume that is needed. I have had intensive amount of schooling in electronics, i am Ford certified and ASE certified, So maybe you should REREAD OHMS LAW
#10
i understand ohms law pretty well, but when there is high resistance it will draw more current. Now, when you let your window all the way down and hold the button even after the window is all the way down. The circuit breaker will break because of the resistance the motor creates, to prevent damage. The window motor works just like a starter. If a starter motor has alot of resistance, it will require more current to turn the motor over. Which means there will be more of a draw, pulling alot more amps then a normal motor would pull. Resistance is like a water restriction in a water pipe. It will require to put more pressure on that restriction to get the volume that is needed. I have had intensive amount of schooling in electronics, i am Ford certified and ASE certified, So maybe you should REREAD OHMS LAW
No, I'm going to give you an OHMS law lesson!!
CURRENT = VOLTAGE/RESISTANCE (I=E/R)
So, if the RESISTANCE increases, the CURRENT will decrease
If the VOLTAGE increases, the CURRENT will increase
I'm talking electrical resistance, NOT LOAD on the motors.
Last edited by Takeda; 08-24-2010 at 04:49 PM.
#11
ok IKE , But i guarentee that motor has high resistance causing it to pull more of a load. Its like motor is like a resistor on the battery, which would make the dome light dim. And i was talking about resistance causing the load to go up. You were the one that brought up the electrical resistance of ohms law, not me
Last edited by ccosgrove71; 08-24-2010 at 05:42 PM.
#12
#14
#16
See if you can understand this information.......
Brushed DC electric motor - Wikipedia, the free encyclopedia
Electric motor load resistance
#17
#18
Mine is kind of the same. My 04 drivers side has no problem going down but about 1/3 of the way going up it starts slowing down and i speed it up with my hand on the window. My passenger side works just fine.
#19
If these thing don't slide easily the don't work well.
#20
See if you can understand this information.......
Brushed DC electric motor - Wikipedia, the free encyclopedia
Electric motor load resistance
Brushed DC electric motor - Wikipedia, the free encyclopedia
Electric motor load resistance
Electrical load - Wikipedia, the free encyclopedia
#21
Current is inversely proportional to resistance. Meaning high resistance low current.
I really hope you meant high resistance as in high work load on the motor. Not high ohm load draws more current.
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