Gas Gauge not working

[JstCloseUrEyes]

Hello,

well thats not specifically correct, it will read from full to just about empty, randomly however, sometimes while I am driving it will just bob up and down, until it settles about a half tank.

So, really I have no idea how much gas I have.

I spoke to my mechanic, he said to look for a Troubleshooting Guide for the gas gauge, either in a manual, or online.....so, that is why I am here asking for help

Thanks a lot everyone!

[BNaylor]

Originally Posted by JstCloseUrEyes

Hello,

well thats not specifically correct, it will read from full to just about empty, randomly however, sometimes while I am driving it will just bob up and down, until it settles about a half tank.

So, really I have no idea how much gas I have.

I spoke to my mechanic, he said to look for a Troubleshooting Guide for the gas gauge, either in a manual, or online.....so, that is why I am here asking for help

Thanks a lot everyone!

Fuel level sensor in the gas tank is bad. I have never seen a bad fuel gauge.

[JstCloseUrEyes]

Originally Posted by bnaylor3400

Fuel level sensor in the gas tank is bad. I have never seen a bad fuel gauge.

Thanks, i didnt htink it was the gauge, just didnt know how else to desribe it

Now, is this something that I can do myself, IE, with my girlfriend's father, or do I have to drop the gas tank to change the part?

Speaking of, how much would the part cost me?

[BNaylor]

Originally Posted by JstCloseUrEyes

Thanks, i didnt htink it was the gauge, just didnt know how else to desribe it

Now, is this something that I can do myself, IE, with my girlfriend's father, or do I have to drop the gas tank to change the part?

Speaking of, how much would the part cost me?

Yes. As you can see I did mine DIY. There is an access cover behind the rear passenger seat in the trunk. Move carpeting and sound deadening material and you'll see it. Seven 10mm nuts hold the cover. The complete fuel pump pod will come up and out after disconnecting the fuel lines, evaporative emission line, electrical connectors and the big C-Clip retainer. You can get the level separately or the whole pod which will come with the level sensor and float. Around $90 or so just for the sensor. Whole fuel pump pod can be expensive at around $300.

BTW - It will be very dirty so use a shop vac and clean up otherwise you'll not see the c-clip. You don't want dirt dropping into the fuel tank. Good luck!

Also disconnect battery negative cable before working on the fuel system.

[richtazz]

Bob, as always, is correct. Just for reference, the AC-Delco part numbers are as follows for a 2000 GP GT:
fuel pump (includes level sensor) : MU232 (gm#25325702) $421.92 @ dealer
fuel level sensor only: SK1028 (gm# 25323814) $160.64 @ dealer
I work at a Delco distributor in Flint, MI and can sell them at $210.96 and $80.32 respectively, + s/h. If you're interested, you can PM me with your zip code and I can give you a shipping quote too. Whatever you do, don't buy Advance and Auto-Zone's ""Master" brand. I used to work for Advance and the Master Brand is JUNK. Airtex isn't much better either, so try to stick with AC-Delco or Carter if you can.