Yet another fuel gauge question.

[danny7139]

I replaced my sender and pump about a year ago when I did my engine. Hasn't been correct yet. It works until about 1/2 and doesn't move much from there. I have seen it drop below 1/2 to about 1/4 once or twice for a few seconds when I was backing out of the drive way. But it went back up to 1/2.

Any help would be greatly appreciated.

 

[imiceman44]

I replaced my sender and pump about a year ago when I did my engine. Hasn't been correct yet. It works until about 1/2 and doesn't move much from there. I have seen it drop below 1/2 to about 1/4 once or twice for a few seconds when I was backing out of the drive way. But it went back up to 1/2.

Any help would be greatly appreciated.

I have had success with taking the sendr out and cleaning it, it had carbon buildup and sludge, worked fine after that.

 

[Jason4x4]

or the float is being held up by something in the tank, maybe hitting the sock?

 

[Jason4x4]

or it still actually has 1/2 tank.

 

[dyeager535]

Ground the sender wire for the gauge with the key on, see what happens. Then leave it open, and see what happens. GM says you need to give the gauge a few minutes to respond.

 

[trikstark5]

Had a similiar problem with my brother's Blazer. Ended up being a bad ground connection. The wire itself was actually bad.