When I shut down my truck (after the fuel gets sloshed around) the fuel flows from the rear tank into the front tank causing the front tank to overflow ,,mostly all over the ground ,,,I realize the vent is not working is the vent in the fuel cap or??????
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Re: fuel tank ventilation
The vents are usually found in the filler neck of those ford dual tank units. They are designed for one way air release. Go to the dealership and pick the parts guys brain for the part number etc. and he will tell you where it is exactly. Then get the part and replace. Save a bundle. When you do the repair make sure you take all the neccessary precautions with any fuel repair.
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Your gas tank has a float inside that is kart if tne. Fuel. Pump assembly that indicates the amount of fuel in the tank..it sends a message to the gauge...sounds like the float is sticking when the gas is sloshing around when moving..causing a false read being sent to the gauge. Most times the tank has to be removed to replace..good luck..
fuel tank holds about 12-14 gallons and with the fuel low in the tank it sloshes around and moves the fuel level sender causing the fuel gage to fluctuate. there is a shield in the tank that surrounds the sending unit to stop this but sometimes they come loose and move or don`t work as effectively. how many miles to a tank depends on different factors. mainly on how you drive. in general you might get around 18-20 mpg.
P0171 VOLKSWAGEN - System Too Lean engine cylinder Bank 1 Possible causes- Intake air leaks - Faulty front heated oxygen sensor - Ignition misfiring - Faulty fuel injectors - Exhaust gas leaks - Incorrect fuel pressure - Lack of fuel - Faulty Mass Air Flow (MAF) sensor - Incorrect Positive Crankcase Ventilation (PCV) hose connection P0455 VOLKSWAGEN - EVAP System (fuel vapor storage and control) Large Leak Detected Possible causes- Missing or loose fuel cap - Incorrect fuel filler cap used - Fuel filler cap remains open or fails to close - Foreign matter caught in fuel filler cap - EVAP canister or fuel tank leaks - EVAP system hose leaking - Fuel tank leaking
the fuel guage will only be accurate on level ground,, when you stop or go around the corner the fuel sloshes around in to tank causing the level at the float to change,, thus the guage reads different
Your truck has a mechanical switch that may not be working. Check it for power and ground.
One of the problems with 2 tanks is a lot of folks only run off of one and then you can get a sludge build up and could have a plugged pick up line. Try this remove the fuel cap for the front tank. Disconnect the front tank fuel line from the switch valve. If you are not getting a good flow of fuel using low pressure air no more than 25 to 40 PSI blow back into the tank. Now do you have fuel flow? Your switch valve may be plugged on the front tank side - If you are getting fuel to the switch valve and not through it I would replace the valve. You may also have a bad dash switch Hope this helps Please leave a testimonial if it does Thanks Scott
couple of things, does this problem occur with a full tank of fuel?if it happens with a quarter tank or less i would remove fuel pump to inspect the sock filter,sediment in tank sloshes around and clogs this sock up when fuel level is low,another possibility that the air /fuel ratio sensor maybe out of spec usually causing "lean" misfires, good luck