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Old 05-11-2010, 09:44 AM
CF Junior Member
Join Date: May 2010
Posts: 75
Default 98 Z71 no 4WD

Truck is a 98 Z71 with the floor shift 4x4. The Transfercase engages but the front actuator does not extend. The actuator is good, has been tested on my wifes suburban. I have replaced the transfercase switch and last but not least the 20a 4x4 fuse is good.

Actuator plug: I am getting my key on power and the ground is good.

Transfer case plug: my test light is showing power on all 3 wires with the plug pulled from the switch. This is what confuses me, shouldnt only one wire have power untill the tcase switch is engaged?

I am ready to run new wires from the switch to the actuator but the wire colors dont all match.

Please post any wiring diagrams or a picture of the whole harness.

Is thier another fuse or relay somewhere i cant find?

I own both the Chiltons and Hayes manuals and neither one show any diagrams ect.

Thanks for your help.
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Old 05-11-2010, 05:10 PM
CF Junior Member
Join Date: May 2010
Posts: 75

Here is a drawing to help.
Attached Thumbnails
98 Z71 no 4WD-wiring-harness.jpg  
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Old 05-12-2010, 09:09 PM
CF Junior Member
Join Date: May 2010
Posts: 75

Fixed, was a cut wire about 8" from the transfer case switch.
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4x4, 95, 98, 98z71, actuator, case, chevy, drive, front, postings, pre, transfer, wheel, work, z71

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