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ray_mcavoy · 09-22-2019, 08:21 PM

The fuel gauge wire should pass through the firewall via the bulkhead connector behind the fuse box. I believe it's in the same portion of the connector as the engine wiring harness.

For 83, the entire length of the wire was originally pink, all the way from the gauge to the tank. What year truck did your donor dash harness come from? The might explain the wire color difference because GM did use a tan wire for the fuel gauge in the earlier years before changing over to pink sometime around 78, 79, or so.

09-22-2019, 08:21 PM	#2
ray_mcavoy Registered User Join Date: Nov 2009 Location: Sherman, ME Posts: 2,379	Re: Fuel gauge wire routing question The fuel gauge wire should pass through the firewall via the bulkhead connector behind the fuse box. I believe it's in the same portion of the connector as the engine wiring harness. For 83, the entire length of the wire was originally pink, all the way from the gauge to the tank. What year truck did your donor dash harness come from? The might explain the wire color difference because GM did use a tan wire for the fuel gauge in the earlier years before changing over to pink sometime around 78, 79, or so.