Did you by any chance:
Check the fuel pump fuse?
Check the ignition switch if the fuse is good, and no current getting to the
Check the oil pressure sender, make sure the plug isn't corroded.
Another thought, look on the firewall, there will be a second connector with
a red wire. (Red is the usual color)
Put a voltmeter or a test light in that connector, ground the other lead or
the negative lead to the voltmeter. Have someone turn the key, and you
should see 12 volts for three to five seconds. Also you should hear two
distinct clicks, which will be the fuel pump relay going on and off for
three to five seconds.
If you don't see voltage for three to five seconds, that's an indicator that
the problem is electrical. The popular use for this wire is also to power
the pump, with twelve volts, directly from the battery or another twelve
volt source under the hood. After doing this for so many years, I still
frown on that practice. The pump failed for a reason, and powering it can
turn the truck into a grenade.
I hope this helps.
check the connector at the sender unit, also check the splice on the org
wire in the harrness under the relay center on the pass side of the truck
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