4 wheel drive not working

Tiny
NORMAN KASINGER
  • MEMBER
  • 1997 CHEVROLET 1500
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 230,000 MILES
Actuator going in and out 4low when it is in 2WD.
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Friday, November 16th, 2018 AT 1:11 AM

5 Replies

Tiny
KEN
  • ADMIN
Hello,

It sounds like the encoder motor is going out. Here are instruction and diagrams to help you replace it below:

INSTALL OR CONNECT
1. Any gasket material remaining from the motor/encoder.
- New motor/encoder should have a new gasket attached.
2. Four bolts securing the motor/encoder to the transfer case.
- Ensure the motor/encoder aligns properly with the transfer case interior shifting components.
- Align the motor/encoder mating surface detents with the transfer case mating surface detents.
- Tighten motor/encoder bolts to 25 N.M (18 lb ft).
3. Wiring harness connectors to the motor/encoder.
4. Transfer case shield.
5. Negative battery cable.
6. Perform a functional test on the electronic shift select system to test the motor/encoder.

Check out the diagrams (below). Please let us know if you need anything else to get the problem fixed.

Cheers, Ken
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Saturday, November 17th, 2018 AT 10:27 AM
Tiny
NORMAN KASINGER
  • MEMBER
Okay thank you. So it is the actuator?
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Saturday, November 17th, 2018 AT 10:44 AM
Tiny
NORMAN KASINGER
  • MEMBER
Okay, I have a 1999 Suburban will the parts interchange?
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Sunday, November 18th, 2018 AT 5:07 PM
Tiny
NORMAN KASINGER
  • MEMBER
And I see now what you were talking about. Thank you
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Sunday, November 18th, 2018 AT 5:10 PM
Tiny
KEN
  • ADMIN
It should work if the parts numbers are the same. Please let me know how it goes.
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Monday, November 19th, 2018 AT 10:48 AM

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