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Chris (aka- Moose)
Chris (aka- Moose), Technician
Category: Transmissions
Satisfied Customers: 44504
Experience:  16 yrs. experience with auto, manual, & CVT drivelines
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98 ford expedition code p1729 4x4 switch low circuit.

Customer Question

98 ford expedition code p1729 4x4 switch low circuit. transmission shifts to 0/d by 25 mph o/d light flashes,4x4 switch no 4hi or 4low light working.no power down to 4x4 encoder motor.fuses ok.
Submitted: 8 months ago.
Category: Transmissions
Customer: replied 8 months ago.
Hello i forgot to tell you i am a tech in a shop and we are working on this vehicle now so i need someone who can help me asap..i cant wait for a day...thanks
Expert:  Chris (aka- Moose) replied 8 months ago.

Welcome, I'm Chris (aka Moose). Experts aren't employees / agents of Just Answer. We are independent service providers using the Site to sell their Expert knowledge to Customers. I strive to provide EXCELLENT 5 STAR service to you, let me know what's needed from me so your pleased with my assistance and will rate me Good or Excellent.

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Your transmission is shifting this way because the PCM believes your in low range. Can you perform the tests below?

https://dl.dropboxusercontent.com/u/90220402/1729.pdf

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Thanks for asking your question and letting me try to help you.

Please make sure to complete the rating 1-5 STARS on your screen when your pleased. The email survey is for the website, it does not compensate me.

Follow up/Reply as many times as needed before or after rating.

Customer: replied 8 months ago.
I need a tech who can answer me during the day today as the vehicle is on our hoist..thats why i paid extra for urgent response
I need the wiring diagram from the 4x4 switch to the transfer case asm.so i know what the wire color is thats power at the plug to the encoder motor.
ty

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