90 Pickup diagram

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90 Pickup diagram

Postby bonez30884 » Mon Dec 14, 2020 2:06 am

I could really use a wiring diagram for this truck. There is a short in my dash lights. Also my fuel gauge and temp gauge don't work. Fuel gauge moves a little but only goes up maybe to a 1/4 tank. Any help is much appreciated
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Re: 90 Pickup diagram

Postby JoeIsuzu » Mon Dec 14, 2020 8:08 am

When I had a '94 Amigo, the same factory service manual covered both the Amigo and Pickup. I no longer have the Amigo or the manual. But that might broaden the options for getting help.

Also, if you're not popping fuses or catching on fire, you probably don't have a short. It's probably one or more bad connections or broken wires.

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Re: 90 Pickup diagram

Postby itsmehb » Mon Dec 14, 2020 9:27 am

Also, if you're not popping fuses or catching on fire, you probably don't have a short. It's probably one or more bad connections or broken wires.

Agree, a short will usually blow the fuse to protect the wire or component. You probably have 2 separate problems. The fuel sender in the tank for the gauge would be suspect. And as for the dash lights, I would take a look at the switch first. Does moving the dimmer from dim to bright have any effect on the lights?
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Re: 90 Pickup diagram

Postby bonez30884 » Sat Dec 19, 2020 11:35 pm

Turning the dimmer down dims the rest of the lights like my thermostat settings
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