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Old 08-16-2009, 11:19 PM
JP_McCann JP_McCann is offline
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4x4 relay location

1997 f150 5.4 with Electronic shift on the fly 4wd. where is the relay that i hear click when i turn the **** to 4H? On my other 97 with the 4.6 when i switch to 4H i can hear a relay click but don't know where it is. I read about under the oval in the dasdh but it doesn't sound like that is where the clicking is coming from. I think that this is the issue with the 4x4 not working but i am open to other suggestions.
A brief rundown of the problem:
just picked up another f150 on craigslist with the 5.4 and Electric 4x4. the guy said that 4x4 stopped working and he didn't know the issue but the motor was replaced beauce the other one the magnet was all broken apart (no idea how it happen) but it still don't go into 4x4. if you turn the switch nothing happens and i don't hear any clicking from a relay or soliniod. what should i look at to test and replace and where can i find these parts.
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1997 F150 4x4 Off Road Short Bed Regular Cab 4.6
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Old 08-17-2009, 07:31 AM
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torkum torkum is offline
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Check this post out, might help: http://www.ford-trucks.com/forums/76...lp-please.html
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Old 08-19-2009, 11:56 PM
JP_McCann JP_McCann is offline
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anyone know what else to check?
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Old 08-20-2009, 09:45 PM
Bluegrass 7 Bluegrass 7 is offline
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Bluegrass 7 has a good reputation on FTE.Bluegrass 7 has a good reputation on FTE.
Usually there is 2 relays on the firewall in the engine bay.
They route vacuum signals and return function signals to the GEM module to tell the module what fucntion had occurred and if the action was completed by lighting the dash lamp..
4X4 is a set of complex actions involving the dash switch, the GEM module, the routing relays, the motor drive on the transfer case and the vacuum drive for front axle engagments.
Could have an issue at any point in the chain.
Pays to become fully versed about how the system works, then it becomes easier to conclude were the issue might be and repair.
Good luck.
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Old 08-20-2009, 09:58 PM
JP_McCann JP_McCann is offline
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Best way to become fully versed in ford electronic shift on the fly 4x4 system is? Any help would be great. That is my number one issue with trying to fix this, I really have no idea how it works
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Old 08-20-2009, 10:22 PM
Bluegrass 7 Bluegrass 7 is offline
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Respectfully, It is complex and not readly fully expainable on a board like this. (no drawings, no test equipment, no specs.!
Service disc is the better option to use as it will be usefull for many issues in the future if you are going to own these trucks over a long period of time.
You know we can't tell you what is wrong over this medium without accurate feed back and test procedure and some test equipment, and it would take quite some time.
Funny, I try to help with education on this board and often get attacked for it, like people 'expect' the right, simple, low cost answer all the time and that's not the way it is.
You own a computer controlled vehichle. I did'nt design it or make it but this is the way it is. Understand it or let a dealer fix it.
Sorry it's not the answer you wanted to hear.
Good luck.
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Old 08-21-2009, 12:46 AM
JP_McCann JP_McCann is offline
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i know that it is very complex. i also know that everything in these truck are computer controlled and super complex to work with. where is the best place to get a service disk? is there anything else i could get to help learn about the system. I know that it probably won't be cheap and easy. the way i am looking at it is the dealer is going to charge a min of $110 just to tell me what is wrong with the car. so if i spent about $110 I would be ok with it since I know it will save me money in the long run because i could use it to fix other problems down the road and we have 2 1997 f150s and i personally like this generation a lot so i plan on probably having more in the future. if you want feel free to pm me so no one attacks you beause i know i won't.
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Old 10-27-2009, 09:38 PM
JP_McCann JP_McCann is offline
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i am bring it this thread to life again because i have fooled around with it some more. based on what i had said before do people think that it could be the GEM? also what do i needed to do to find a replacement at the junkyard/can i find a replacement at the junk yard? how do i know if they are the same? any help would be great.
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Old 10-27-2009, 09:38 PM
 
 
 
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