Truck won't start!

[LS1CHEYENNE]

Found the problem on the float assembly - where the wires come through a plastic block on the top to the unit and the pins stick down towards the tank . From there a small harness plugs on and goes down to the pump and float sending unit - the pin that comes from the gray wire was roasted and the plug had melted on that terminal - wondering why I didn't blow up if there were sparks right there since this all happened inside the tank. Still reading 8.5 volts at the plug . Turned out the pump still worked when I hooked it directly to the battery but I still replaced it anyway. Anyone ever heard of that in tank plug melting like that ? Should I not be using the truck until I solve this voltage issue? Txark... purciate the offer of your granny - try to get her down here in a timely manner next time ! :~)

[RedHeartbeat]

Many GM vehicles with the square 4 wire connector that plugs into the pump have a resistance problem that fries the connector at the connection external to the tank. The newer pump/sender assemblies have an updated connector with larger terminals to fix the problem.

[LS1CHEYENNE]

Thanks Red , so are you saying that you don't think I really have a voltage issue here ? I replaced the last float assembly 9/06 which I got from O'reilly's which was still under warranty. The new one also from there and made by Spectra . Hope this one better than the last one .

[RedHeartbeat]

That I don't know. Check the voltage at the battery, you may have a dead cell. I have one going out in my truck, too. Clean your battery connections and remove any rust or corrosion at the grounds.

[RedHeartbeat]

well, did you get your issue figured out?