Edmunds Answers questions

What is the fuel capacity of the primary tank on my 2001 Chevy Silverado K3500 dump 8.1 litre gas?

mrcrowley — Tue, 03 Nov 2009 05:41:58 GMT

2001 Chevy Silverado, K3500 8.1 litre dually 1 ton,
2 fuel tanks.

Need to fix or replace fuel pump in secondary tank so I need a accurate fuel reading for primary tank.

Trying to find second relay for secondary tank fuel pump? 2001 Chevy Silverado K3500.

mrcrowley — Sat, 07 Nov 2009 06:03:43 GMT

2001 Chevy Silverado K3500 8.1 litre gas,duelly 1 ton two tanks no tank switch automatic. Followed wires from tank back to underhood junction box only one relay for fuel pump in junction box was told there were two relays one for each pump on each tank.

What would cause my fuel gauge to read empty when it is full? Chevy Silverado 3500

mrcrowley — Mon, 09 Nov 2009 19:58:25 GMT

2001 Chevy Silverado 3500 1 ton dump truck.

Dual tanks one relay for pumps both tanks have FSU.

What I have done:

I have problem with the second tank pump not pumping for some reason. I know this because ran out of gas at half full on the fuel gauge. AND I went to fill tank and second tank was full to test theory I ran truck for 100 miles and fill primary tank and the second tank would not take any fuel it was full.

I have tested grounds for sensors and for the pumps all are fine.I ran test leads to the second tank for the fuel pump and it ran . The second tank feeds the primary tank through the over fill hose on primary tank.Both pump leads on primary and second tank are at @5.88 volts when key was on accessory but did not change when I cranked it over.

This truck only has one relay for fuel pumps according to parts dept at Chevy dealership so I am assuming the pumps run at same time even flow type system.

What would be the correct way to test the sensors on each tank? I have have Fluke volt and ohm meter just need to know the correct readings for each sensor?