hagar44

Ok so this truck has been sitting for a while. it is fuel injected. So to start off bought new battery, solenoid, spark plugs, and belt. Also I dropped both tanks to drain fuel as it had been sitting. I thought to check the fuel pumps and have noticed neither pump works in the tank. the front(center) tank was completely dead. the rear tank atleast makes a click in pump but still doesn't work. So I assume both pumps are bad(both were sitting in old nasty gas). My questions are 1. Has this truck been sitting to long and will find that I am throwing my money into an endless pit? also If I buy lets say the front tank pump and just hook the front tank back up will the pump work or is there a safety sensor where I have to have both pumps hooked up? And last if I buy new pump and still isn't working what could be the problem of pump not working? Thanks Nathan

Bert

The fuel injectors might be sticking too. As long as you're doing the work yourself and you got it cheap enough, it would be something I'd do. You can use just one pump.Since you have them out, try tapping the motor when you try to power them up and see if they go. They may still need replacing but at least you'll know the system is working if you hook it back in and try with the ignition. They should run for a few seconds on every key to run position. We've had some of those trucks with 200,00 miles and still running good.

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Bert

hagar44

ok so I have bought a fuel pump for the front tank. put it in and got the front tank mounted back. I put like 3 gallons of fuel in the tank and had the key turned on and looked back at whee the rear tank should be(its still dropped out of truck) and noticed that when the fuel pump kicks on the return line has fuel coming out of it. it isn't a steady stream. it almost seems like that when the line pressures up that is where it is bypassing to. I could be wrong though. Any thoughts? Also truck still won't run. Is there a place where you can unhook the fuel line near the injectors to see if fuel is getting pumped to that point? Any ideas would be great Thanks Nathan

Bert

There should be a shraeder type valve in the fuel rail. I don't know what the fuel line diagram is like on that truck, but it could be the return line fron up front is a tee and feeds back to both tanks. That might be why the fuel is coming out the rear. Have you checked to see if it's getting spark?

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Bert