Assuming (I don't like to assume) ... You are speaking of depressurizing your fuel system? Perhaps to change a fuel filter? Above the right head, on the fuel injection rail, towards the firewall, there is a shrader type valve, with a black dust cap on it. Remove the cap, and depress the valve- a small amount of fuel will leak. Don't forget to turn off the air suspension before climbing under the vehicle, if you are changing the filter! The switch is on the right kick panel for the passenger (under the dash) The filter is under the drivers door pillar, inside the frame rail.
The hose diameter has stretch bigger then factory specks. Or the vacuum pressure is higher than expected.
you open the gas cap to release any charge from the line
relieve the pressure off the high pressure side
Captain R F Scott let the Discovery Expedition in 1901, and the Terra Nova Expedition in 1910.
When engine is turned off there won't be any pressure.
the larger of the 2 lines that come off the compressor
a leaky injector or a cylinder that is not firing dose your fuel pressure bleed off when the jeep is sitting if so check your fuel pressure after the jeep is shut off if it falls off then find the rubber fuel line to the fuel rail and get the jeep running to aquire fuel pressure and turn the jeep off and quickly clamp the rubber fuel line off if the fuel pressure still falls off it is an injector bleeding pressure
No.
Turn off forklift
Turn off forklift
With vacuum line (from fuel pressure regulator) OFF and pinched , pressure should be between 47-54 psi. With vacuum line ON fuel pressure egulator, pressure should be between 38-46 psi.
You can also push the reset button inside the vehicle where you scroll through your custom optionsDrive the truck for about 2 minutes and it should go off. Hope this helps. Honda Man's Answer Some vehicles with direct tire pressure sensors, require nothing but correcting the pressure and driving. On the Expedition however, there is a reset procedure required. See the link provided for a detailed step by step procedure.