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Keep overdrive working--try the cheapest (and easiest) thing first... 200 1989

posted by  lucid on  Fri Jul 4 01:04 CST 2008
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last visit: Fri Oct 24 12:31 CST 2014
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If it was mine, I would "diagnostically" do a temporary bypass of the OD relay — by replacing it with a jumper wire at the relay harness connector plug to connect two terminals together:
• Input terminal #15 (2 wires, a Blue and a Gray)
• Output terminal #87 (White wire)

A good-fitting jumper can be made with flat male crimp-on terminals that are the same size and shape as the relay terminals. This jumper wire will simulate a relay that is always energized — which is the normal condition, until the shifter button is pressed.

If the fuse blows, the most likely suspect is the output White wire to the solenoid. Or less likely, the Gray wire from the shifter switch to the relay.

If the OD now works OK and you don't need the shifter button downshift option, just leave the jumper in place.

<====(end Post)================






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New Ok to drive WITHOUT overdrive engaged? Will this hurt the transmission? [200][1989]
posted by  talandriel  on Thu Jul 3 20:05 CST 2008 >


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