Question about 1994 Chevrolet C/K 3500

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I need a wiring schematic for a 1994 Chevy/ 3500/ 4x4/4L80E Trans

I am trying to rewire from the engine wiring harness to the transmission and transfer case. My front drive shaft came loose and ripped all of the wiring loose. I have bought a kit and rewired the transmision and transfer case but here are some wires that I cannot find where the were ripped from. There are some of the following colors of wires and when checked on the reb or blue connectors at the computer show up to be for many destinations

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  • Travis Long
    Travis Long Mar 07, 2015

    ok give me a minute ive got several manuals for those trucks!

  • Travis Long
    Travis Long Mar 07, 2015

    give me your wire colors il see if i can help ya out!

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  • 2 Answers

Do you need the engine harness, dash harness.? where is your problem?

Posted on Mar 07, 2015

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SOURCE: 1996 Dodge Ram Factory Trailer Wiring Schematic

all you need is a cheap continuity tester, any one to help tap on the brakes..7pin is just like the 4 pin w/extra power wire for acc.lites,electric brakes.when you buy the 7pin rec.,comes w/wiring schematic standard to all trailer rec.- you can do it..kev-mn.

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SOURCE: need to rewire entire jeep

If you want to rewire the vehicle, assuming that you will not be changing any systems, you can usually find complete new wiring harnesses from both the dealer and from aftermarket selllers like Quadratec and JC Witney.  Buying the complete wiring harnesses will be alot cheaper and less time consuming than trying to make them yourself.  These wire assemblies are just a plug and play deal, you disconnect a harness and replace it with the new one.  They may even include some instructions. If you need further assistance with custom wiring or diagnosis, I would recommend getting the service manual for the vehicle from the dealer or used ones from eBay ($30- $100).  The factory service manuals have complete wiring diagrams and schematics as well as full diagnostic information.  These service manuals are NOT like the ones found at your local parts store (Chilton or Haynes).  The factory service manuals are like complete blueprints for a car.

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inf12
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SOURCE: need wiring diagram for taillights on 2000 chevy venture van

d7d3cd6.jpg3a50d5e.jpg80738de.jpg8d3e722.jpg GOOD LUCK

Posted on Feb 08, 2009

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I have a 2003 gmc envoy the service 4wd light came on and 4wd didnt engage what do you think the the problem is


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  2. Drain the transfer case.
  3. Disconnect the speedometer cable.
  4. On models equipped with the NP208 transfer case, place the case in the 4H position.
  5. Remove the skid plate and if necessary, the crossmember support.
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  8. On models equipped with the NP208 transfer case, remove the parking brake cable guide from the pivot on the right frame rail.
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  10. Disconnect the shift lever rod.
  11. Support the transfer case and remove the bolts attaching the transfer case to transmission adapter.
  12. Move the transfer case to the rear until the input shaft clears the adapter and lower the transfer case from the truck.

Sounds as though you a have a problem with the switch itself, although it could be the encoder on the transfer case , me--- I would have it checked at a transmision shop where they have a computer to check it. Every time you unhook a wire on the truck , you should have the + cable off the battery, cause this puts another code into your main computer.

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1997 z71 Transmission removal




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  3. Disconnect the range selector cable from the transmission bracket and from the transmission range select lever. Refer to Shift Cable Replacement .
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  9. 7.1. Two bolts 7.2. Two washers 7.3. One nut 7.4. The transmission to engine brace
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  10. Diesel Engine--Remove the following components:
  11. 8.1. Two bolts 8.2. Two washers 8.3. One nut 8.4. The transmission to engine brace
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  19. 102335.gif
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  22. 102211.gif
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  24. 102339.gif
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  34. 102341.gif
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  36. 102343.gif
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Pictures of removing gearbox and transfer case from vehicle


REMOVAL & INSTALLATION CAUTION
The catalytic converter is located beside the transfer case. Be careful when working around the catalytic converter because of the extremely high temperatures generated by the converter.
  1. Disconnect the negative battery cable.
  2. Raise the vehicle and support it safely.
  3. If so equipped, remove the skid plate from frame.
  4. Drain the transfer case.
  5. Remove the damper from the transfer case, if so equipped.
  6. On electronic shift models, remove the wire connector from the feed wire harness at the rear of the transfer case. Be sure to squeeze the locking tabs, then pull the connectors apart.
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  8. If equipped, loosen the clamp retaining the front driveshaft boot to the transfer case, and pull the driveshaft and front boot assembly out of the transfer case front output shaft.
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  11. If equipped, disconnect the electrical wire harness plug from the Vehicle Speed Sensor (VSS).
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1 Answer

Auto trans 4x4


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