4X4 Electronic Module
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5th Wheeling
Joined: Aug 2009
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4X4 Electronic Module
I have a 2000 Ford Expedition and I have had problems with the 4x4 system. The 4x4 light would flash on and off while I was driving and the car would jump whenever I would turn. I got the problem checked Friday and was told I need to replace the electronic module and it would cost me approx. $600. Is this the average cost for this or is the mechanic screwing me? And how urgently do I need to get this replaced? Thanks.
Moderator
Joined: Dec 2005
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From: Billings, Montana
If they're talking about your GEM module, that's probably about right. You can often find the GEM's cheaper on ebay such as this one. 2000-2002 FORD EXPEDITION 4X4 GEM MODULE YL14-14B205-AB:eBay Motors (item 290362311978 end time Nov-20-09 19:17:46 PST)
You could change this out yourself, but they're kind of a pain to access. If you're willing to give it a shot, do a search and you'll find all sorts of info.
You could change this out yourself, but they're kind of a pain to access. If you're willing to give it a shot, do a search and you'll find all sorts of info.
Fleet Owner
Joined: Apr 2008
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From: 0,0,1
They could be talking about the 4WD relay module and not the GEM. To me it sounds like the front clutch for the 4WD system is kicking in and out at random.
Who ruled out a bad dash selector switch or the shift motor? Was this a dealer with the proper scan tools, or a local mechanic that was just making an educated guess?
Who ruled out a bad dash selector switch or the shift motor? Was this a dealer with the proper scan tools, or a local mechanic that was just making an educated guess?
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5th Wheeling
Joined: Aug 2009
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They could be talking about the 4WD relay module and not the GEM. To me it sounds like the front clutch for the 4WD system is kicking in and out at random.
Who ruled out a bad dash selector switch or the shift motor? Was this a dealer with the proper scan tools, or a local mechanic that was just making an educated guess?
Who ruled out a bad dash selector switch or the shift motor? Was this a dealer with the proper scan tools, or a local mechanic that was just making an educated guess?
Thread Starter
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5th Wheeling
Joined: Aug 2009
Posts: 29
Likes: 0
They could be talking about the 4WD relay module and not the GEM. To me it sounds like the front clutch for the 4WD system is kicking in and out at random.
Who ruled out a bad dash selector switch or the shift motor? Was this a dealer with the proper scan tools, or a local mechanic that was just making an educated guess?
Who ruled out a bad dash selector switch or the shift motor? Was this a dealer with the proper scan tools, or a local mechanic that was just making an educated guess?
I found a TSB on my truck and the problem with the 4x4 light flashing and the hopping while turning are 2 symptoms listed on the TSB. Do you still think it could be the shift motor? Thanks for the help.
TSB:01-14-1***ELECTRICAL - ELECTRONIC SHIFT ON THE FLY (ESOF) TRANSFER CASE - INADVERTENT 4X4 HI OR LOW SHIFT EVENTS ***TRANSMISSION - TRANSFER CASE - INADVERTENT 4X4 HI OR LOW SHIFT EVENTS - VEHICLES EQUIPPED WITH ELECTRONIC SHIFT ON THE FLY (ESOF) ONLY
Fleet Owner
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Straight from the TSB you posted.
ISSUE:
Some vehicles may exhibit inadvertent 4X4 Hi or Low shift events, 4X4 and/or Low Range indicator flashing or solid or vehicle stuck in 4L after uncommanded shift. This may be caused by the 4X4 shift motor.
ACTION:
Install a YL1Z-7G360-AA shift motor on vehicles built before 12/99. The YL1Z-7G360-AA shift motor with a grey contact plate cover replaces the prior design F75Z-7G360-AA motor with a blue contact plate cover. Grey cover shift motors contain improved sense plate material and shift motor terminal upgrade. For vehicles already equipped with the latest style shift motor, refer to the following Service Procedure for details.
ISSUE:
Some vehicles may exhibit inadvertent 4X4 Hi or Low shift events, 4X4 and/or Low Range indicator flashing or solid or vehicle stuck in 4L after uncommanded shift. This may be caused by the 4X4 shift motor.
ACTION:
Install a YL1Z-7G360-AA shift motor on vehicles built before 12/99. The YL1Z-7G360-AA shift motor with a grey contact plate cover replaces the prior design F75Z-7G360-AA motor with a blue contact plate cover. Grey cover shift motors contain improved sense plate material and shift motor terminal upgrade. For vehicles already equipped with the latest style shift motor, refer to the following Service Procedure for details.
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