2005 silverado 1500 fuel gauge not working

[cybern8]

my fuel gauge on my 2005 silverado is not working. i replaced the fuel pump with one i got at 1A auto, but the gauge still does not work. sometimes it is stuck at E, other times it is stuck at F. the pump i got from 1A is supposedly the right one for my 2005 silverado 1500 rwd 5.3L ... anybody have any suggestions for me? i've seen some references to 'bad ground wire' in other forums, but nobody gives any details on what wire/connection/location, how to find/fix, etc. ... adv-thanks-ance.

[Jstevens7700]

Mine did that and the fuel pump was the wrong one resulting in the float resting on the side of the tank. I would pull the fuel pump back out and see if when you move the fuel gauge float arm it might be in the position to hit the side of the tank. Line up the pump like you would hook the lines up while holding it above the tank.

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[cybern8]

hmm... problem is that the new pump looks exactly like the old pump, and there is no way to install the float arm the wrong way and you can only install the pump in one position for the fuel lines and electrical connections. you say "the fuel pump was the wrong one" ... where did you get the right one, and did it look obviously different than the bad one when you got it? thanks for the reply...

[Jstevens7700]

I let a shop put it in for me because i didn't have time to and they ordered the wrong one. It goes by bed size. See how the hose hookups are the same but the floats are facing different ways.

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[Jstevens7700]

I got the right one at O'Reilly's. Not saying this is definitely the problem but it's probably one of the easiest things to check.

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[cybern8]

in that pic, i take it the one with the black float is the correct one?

 

bed size?? what the heck would that have to do with the fuel pump? my truck is a crew cab, with what i guess is the normal size bed for that truck.

[davester]

longer beds may have a larger tank, possibly with a different pump.

then there are different emission setups, having different connections up top.

[Jstevens7700]

Yes the one with the black float is the correct one. Mine is a crew cab with the shortest bed just a little under 6ft if I remember right.

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[Jstevens7700]

This is the right one for my truck it has the 5 foot 8.4 inch bed crew cab

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[cybern8]

thank you!!

[dsr611]

Could possibly be as simple as the stepper motor on the gauge going bad.  That generation of GM instrument panels are notorious for the stepper motors going bad.

[Mposey9293]

Did you find the solution to this problem?

[davester]

7 hours ago, Mposey9293 said:

Did you find the solution to this problem?

Why would you think whatever specific problem that the o.p's truck had, is the same that yours has?

You need to diagnose what's wrong with your truck.

[Mposey9293]

Because mine has the exact same symptoms. Not sure why you are concerned about my question? 

[davester]

sure you do.  But I understand it, it takes time and effort to diagnose, it's so much easier to throw parts at the truck.  You just want someone to tell you what part they needed for their truck, so you can throw it at yours.