Fuel Gauge, Air Bag Light, Rear Hatch Release

[rphill1]

My 97 GMC Jimmy is experiencing numerous problems and I'm seeking some assistance.
1) Sporatic Fuel Gauage - Floats everywhere - Ground Wire look good
2)Air Bag Light stays on. - Will clearing the computer fix the prob?
3) Rear Hatch solenoid runs but doesn't release - How in the heck do you fix it if you can't open the tailgate?
4) Air inside the Heater Core - How do you burp a heater core to get the air bubbles out?

[munson]

For the fuel gauge. You have to replace the entire fuel pump/gauge module.
Just went thru this.
The gauge is a Singapore cheep thing.
If you're a good handcraft, you can try to pry back the tiny pins
on the gauge but good luck.
Can find the module on E-BAY.
Take care not breaking the fuel lines when you drop the tank,they are very short and they pass over the top
tank straps.Hard to disconnect too.