Fuel gauge reset after fuel pump replace & A/C fill ??

[Randy Whistler]

this is on a 2000 Tahoe LS.

I'll start with fuel gauge/fuel pump. I recently replaced the fuel pump but now the gauge does not show full when it is. From what I have read, there is some sort of reset procedure to go through. I'm still researching and may find the answer but thought I'd probe the collective intelligence here to make sure I was on the right path.

Did I mention this is on a 2000 Tahoe LS?

A/C question: When I put my refill hose/gauge on the fitting, the gauge shows the freon pressure like it should when running. However, regardless of which hose I use(I have 2), and regardless of which can I use(have 3), I cannot seem to fill the system. According to previous posts, I am low on refrigerant and need to top it off, but for some reason, when I squeeze the trigger on either fill hose, nothing fills. I have tried the hoses/cans on one of my other vehicles, and all of them work. Is there a secret handshake, or magic incantation that I'm missing?

 

[treehan77]

When I replaced my fuel pump, everything just worked. In fact, my garage was wonky before if I parked on a hill, sometimes bouncing all over, and it works perfectly now.

 

[Fless]

No reset on my '04 when I replaced the fuel pump. I've not heard of any requirement or procedure to reset the fuel gauge.

Maybe have a bad stepper motor in the gauge, or a wonky sender in the fuel pump. What brand fuel pump did you use?

 

[exp500]

Fuel guage- on key on, does guage needle cycle fully? Might need a tech2 to read signals.
On AC- you are using a can with a guage on it to refill? Put the can in a pail of hot water upside down push liquid.

 

[Randy Whistler]

Gauge used to work fine before fuel pump replacement. Don't remember brand, looking for the papers now. Yes, the hoses had gauges on them, but not the cans. I had wondered about filing with liquid instead of vapor but wasn't sure how that would work. . . .