Relay??
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Freshman User
Joined: Jul 2010
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From: Bonnyville Alberta
Relay??
Hi all,first post here,so I'm not sure if this is the right place to post this? I just got a 2002 F250 4x4 super-duty diesel. Whats happening is the batteries keep going dead. I can't say how fast because I just got it tonight, but I'm told that they will be dead by the morning. I think what the cause might be is the relay that lets the power stay on to the radio, power windows & other interior power items, UNTIL you open the door. Because I can open & close the door many times & all these things stay on. Does anyone else think that this might be the problem? If it is, where do I find this relay to change it? Thanks for any help.
Cargo Master
Joined: Apr 2010
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All those items you mentioned that stay "hot" when you open the door should eventually time out even if the door is never opened.
There is a battery saver relay in the central junction box. I think all those items you mentioned run through it. There is a possibility the GEM (generic electronic module) is defective. It controlls the relay.
There is a battery saver relay in the central junction box. I think all those items you mentioned run through it. There is a possibility the GEM (generic electronic module) is defective. It controlls the relay.
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Freshman User
Joined: Jul 2010
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From: Bonnyville Alberta
I went to FORD today and got a new switch (DOOR AJAR SWITCH) as the ford tech said that this is probably the part thats shot. But its mounted inside the door behind the panel I guess. Does anyone have any hints/tricks for getting this off easily? I pried out the panel a little & I can't even see any clips.
New User
Joined: Jul 2010
Posts: 18
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From: n. va
DOOR TRIM REMOVAL
this may help with the door disassembly. you may want to check the entry light switch also good luck. https://acrobat.com/#d=LMZgeN5rngJlPeftRPc2BA
also here is the location of ALL the door switches. hope this helps
https://acrobat.com/#d=FqDMclCEnokr1Hguv1kSfA
also here is the location of ALL the door switches. hope this helps
https://acrobat.com/#d=FqDMclCEnokr1Hguv1kSfA
Last edited by JIMMYPBAILEY; Jul 16, 2010 at 06:21 AM. Reason: add location or door switches
Thread Starter
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Freshman User
Joined: Jul 2010
Posts: 34
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From: Bonnyville Alberta
this may help with the door disassembly. you may want to check the entry light switch also good luck. https://acrobat.com/#d=LMZgeN5rngJlPeftRPc2BA
also here is the location of ALL the door switches. hope this helps
https://acrobat.com/#d=FqDMclCEnokr1Hguv1kSfA
also here is the location of ALL the door switches. hope this helps
https://acrobat.com/#d=FqDMclCEnokr1Hguv1kSfA
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Freshman User
Joined: Jul 2010
Posts: 34
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From: Bonnyville Alberta
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New User
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From: n. va
you are welcome longland hope it helps. it could be the GEM MODULE like thombb said but... you would need EDS software (ford item) to check it out. it would run a check on the module and tell you if there were any problems. but check the easy things first.
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Freshman User
Joined: Jul 2010
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From: Bonnyville Alberta
Jeez how time flies! We ended up putting it in the stealership just after my last post. Had a fair bit done.
New batteries as both were shot, new computer, it was blown from water running into it from the window pillar, new door switches.
Since then it's been running great except it has started surging as I slowly increase my speed. It idles smooth though. Sorry for the long delay in updating the thread, I hate when that happens.
Bill
New batteries as both were shot, new computer, it was blown from water running into it from the window pillar, new door switches.
Since then it's been running great except it has started surging as I slowly increase my speed. It idles smooth though. Sorry for the long delay in updating the thread, I hate when that happens.
Bill
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