Gas gauge reads full all the time

Posted: Thu Apr 08, 2010 5:23 pm Post subject: Gas gauge reads full all the time

Filled up the other day and 120 miles later ... still reading full. I hit a few larger bumps on purpose to see if the float would unstick ... Inconclusive. I'm planning on dropping the tank and seeing whats up with the float and mutlimetering the wiring. I dont think its wiring because if it was not getting power the gauges detent is empty (like when you shut the car off). Sound familiar to anyone? Thanks
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Posted: Thu Apr 08, 2010 6:50 pm Post subject:

Have you been in the dash lately to put overlays in or anything? I'm sure you would have thought of that if you did, but figured I would throw it out there.

I would guess it's something electrical related. Here is a pretty good article with a few possible causes.

http://www.chevytrucks.org/tech/gasgauge.htm
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Posted: Thu Apr 08, 2010 7:27 pm Post subject:

No need to drop the tank, access is via the trunk.... if you need a diagram email me Gregguido80@gmail.com i can send one...

Posted: Fri Apr 09, 2010 11:19 am Post subject:

you don't need to drop the tank. go thru the access panel in the trunk. it's accessible through the rear seat pass-thru. remove the trunk carpet so you don't generate any static. Once you pull the panel off, clean off all the dirt and disconnect the connectors. Undo the snap ring and lift the pump out. The canister will still be full of fuel so be sure you are grounded and don't spill any!!! Then you can check the float.
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1998 Silvermist GTP Coupe
Bone stock unicorn
1998 True Green Metallic GTP Coupe
Pullied, cammed, intercooled. With a kiddie seat. It once ran a 13 flat.
1998 True Green Metallic GTP Sedan (retired)
Stock: 14.33 @ 96.5
PB: 13.89 @ 101 mph

Posted: Sat Apr 10, 2010 4:50 pm Post subject:

I pulled it out to inspect. All seemed well, I pushed the contacts in a little and cleaned the shit out of the connectors. All better! Thanks for heads up on the inspection cover I would have never known it was there!!

Thanks Fellas!

Posted: Sun Apr 11, 2010 7:27 pm Post subject:

Good to hear, I have n extra float assembly if you need one...

Mike,,, Any word on those parts? i was sick the last week and a half... got hit hard...

Posted: Sun Apr 11, 2010 9:01 pm Post subject:

yeah I have the TB with MAF. I can't figure out how to get the ign cylinder out. any tips

Posted: Mon Apr 12, 2010 8:50 pm Post subject:

Tips~ Yea I'll pull it..... shoot me a text with when and $$ thanks man..

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