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Daniel Wilson
Daniel Wilson,
Category: Ford
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April 2003 F650 caterpillar engine vin 3FRNF65374V609466

Customer Question

april 2003 F650 caterpillar engine
vin 3FRNF65374V609466
PASSENGER SIDE GAS TANK WAS EMPTY
DRIVER FULL
TRANSFER PUMP REPLACED BUT DOES NOT COME ON
BOTH SENDING UNITS REPLACED, GAUGE WAS READING FULL AT ALL TIMES BUT NOW IT SHOWS 5 GALLONS I JUST PUT ON PASSENGER SIDE TANK
TRUCK WONT START
Submitted: 6 months ago.
Category: Ford
Expert:  Daniel Wilson replied 6 months ago.

Hi my name is***** will be glad to try to help. What is the engine model and serial number? Also have you attempted to prime the fuel system?

Expert:  Daniel Wilson replied 6 months ago.

Check your build date as your truck still may apply yo this bulletin. Click on this link.

troubleshooting TSB

2004-08 F650/750 One Fuel Tank Empty:
Some trucks with dual tanks will have an empty right fuel tank and a full left tank. Diagnose by verifying power and ground to the tank transfer pump, and the fuel level sender input from both tanks to the transfer pump. Starting on 2004-07 trucks the engine runs off the right tank and the left tank feeds the right. Only the right sender is wired to the fuel gauge. On 2008 trucks the left tank feeds the engine, the right tank feeds the left tank, and the left sender is wired to the gauge. If needed, replace the tank transfer pump. TSB 05-5-11, 06-16-9, 07-9-2.
If the fuel line elbow clips break, the elbow part number is *****

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