[DIAGRAM] Gas Dual Tank Wiring Diagram 1984 Chevy Pick Up MYDIAGRAM

Chevy Forums FREE technical assistance for your restoration and repair. Model specific subject matter experts, classified ads and more.. Dual tank '87 TBI - how to wire pumps (Topic#282639) cloudmaster Senior Member Posts: 1019. Anyone got a service manual with the wiring diagram? Wiring the fuel pumps is about the last thing I have to do.. 1987 R20 Dual Tank wiring. 1 Welcome, Guest. Please login or register.. 73-87 Chevy _ GMC Trucks » Fuel Systems and Drivability ». The above diagram is for pre-TBI tank wiring. The selector switch also powers the respective in-tank pumps on TBI equipped vehicles. Connections are nearly the same with the exception that the dark green and.

76 aux tank wiring diagram. Just remember there are 2 Tan wires at the DPDT switch. One for the gauge and one from the main tank (pass. side). Fuel gage wire is in the center position (pin 4) opposite of the pink/black (power (pin 1)). Green wire for the solenoid (pin 2) is above pink/black and the 2 tanks are above/below the fuel gauge wire.. It sounds like you have all the necessary components to add an auxiliary tank. You could check the fuel pump and the existing fuel tank to see if they are plumped with a return line. Regardless, I'd 'bably use a 6-port valve. Then, like you said, plugged the three return ports on the valve. I wiring scheme for a stock dual tank setup is as follows: