Gas gauge not working after pulling cluster

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Joined
May 16, 2022
Posts
45
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47
Location
oklahoma
First Name
uncle nick
Truck Year
1988
Truck Model
suburban
Engine Size
v8
Hey guys, I went to pull my cluster to replace some of the lights and disconnected the speed of cable per usual and suddenly my gas gauge is not working.

I don’t see any wires that connect back there and I’m just wondering if there is something I hook up to it or if I attach the speedo does that complete the circuit for the gas gauge to work?
 

Scott91370

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Location
Burleson, Tx
First Name
Scott
Truck Year
1985
Truck Model
Sierra1500
Engine Size
350
What year truck and did the large plug get connected tightly to the back of the cluster?
 
Joined
May 16, 2022
Posts
45
Reaction score
47
Location
oklahoma
First Name
uncle nick
Truck Year
1988
Truck Model
suburban
Engine Size
v8
It’s an 86 GMC suburban 2500. I ended up figuring it out and after cleaning cleaning the connectors on the wiring harness to the gauge it solved the issue.
 

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