1989 Chevy Truck base timing

Tiny
HECKERT78
  • MEMBER
  • 1989 CHEVROLET TRUCK
Electrical problem
1989 Chevy Truck V8 Four Wheel Drive Manual

i keep reading online about unpugging a black and tan wire to set it to base time so I can time my truck but I cant find this wire to unplug. I just need to find this wire any help would be greatly appericated. Thanks
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Friday, September 11th, 2009 AT 9:22 PM

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Tiny
PEAR69
  • MEMBER
The wire is located in one of 2 places -- on the firewall, a little above and to the left of the distributer. It will be hanging out of a bundle of wires/or under the black dust cover that covers the terminal block (if you have one there). OR, it may be under the carpet on the passengers side of the cab. Peel the carpet back to find it. It is a single brown wire.
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Saturday, September 12th, 2009 AT 3:55 AM

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