For the archives and to keep you informed
Thanks for the help guys.
I did not have enough patience, so I dropped the tank to discover new fuel tank sending unit and pump. I cleaned all connectors and ground, test with test lamp, everything check good. Put the tank back.
On the engine compartment, I found two bad spark plugs wires, changed with some I have on hand, disconnect coolant temperature sensor and truck started and runs much better. I sill have to press accelerator to start it but then it idles fine.
Because I am not in USA, now i am waiting for new wires and distributor cap, temperature sensors and some other parts.
Can some one point me to good online store for electrical connectors? I need to replace a lot of them.
Thanks again for your help, I will keep you informed on the work I have done :-)