How do I relieve fuel pressure when my car wont start?

  • Disconnect the negative battery cable using a wrench.
  • Locate the fuel pressure regulator on the fuel rail.
  • With your hand, remove the vacuum hose from the top of the fuel pressure regulator.
  • Connect a hand-operated vacuum pump to the top of the pressure regulator.
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    How do you depressurize the fuel system? (video)

    https://www.youtube.com/watch?v=wSsdiSgTsz0

    How do you check fuel pump pressure without a pressure gauge?

    Disconnect the hose coming from the pump to the filter and block the passage of the hose tightly with your finger. You can then start the car. If you feel that the fuel is pushing your finger hard, it means you have good pressure. via

    How do you drain a fuel rail?

    I would pull the supply line off the fuel rail, connect another piece of hose to it to extend it out of the engine bay and down to the ground, place that end into a fuel container, then jump the fuel pump relay. Run the pump until the tank is empty. via

    How do you depressurize a Chevy fuel system?

  • Loosen the fuel filler cap on the outside of your vehicle without removing it.
  • Locate the fuel lines that attach to your fuel filter.
  • Wait several minutes for the pressure in the lines to release.
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    What must be done before loosening or disconnecting fuel lines?

    Wrap a shop towel around the fitting on a fuel line before you loosen the fitting to absorb any leaking fuel. Wipe up any fuel leaks as quickly as possible, especially from engine surfaces. via

    What do u do when ur car doesn't start?

  • If the Car Clicks When Trying to Start. Try Cycling the Key. Try Tapping on the Battery Terminals. Try Tapping the Starter.
  • If There's No Click When You Turn the Key. Try Shifting the Shifter.
  • If the Engine Cranks But Won't Fire Up. Try Swapping Relays. Try Smacking the Fuel Tank.
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    What happens if your fuel pressure is too high?

    High fuel pressure results in a rich air-fuel ratio because the increase in pressure forces more fuel through the injectors than required producing increased emissions (HC's) and black sooty exhaust. These excessive hydrocarbons overheat and damage the catalytic converter. via

    Can a fuel pump have too much pressure?

    Using the wrong fuel pump that delivers excess pressure can cause problems ranging from poor performance and lower gas mileage to flooding and carburetor damage. When the pressure is only a little over the required amount, your vehicle may sputter when you first accelerate from a stopped position. via

    How do you purge a fuel pump? (video)

    https://www.youtube.com/watch?v=dflMxYDOPns

    How do I prime my fuel pump?

    Turn the Vehicle's Ignition Key

    Put the key into the ignition, and turn it to the "on" position, leaving it there for ten seconds. Switch back to "off." Repeat this two more times. This will prime your fuel pump. via

    How do you discharge fuel?

  • Materials Needed.
  • Step 1: Drive the vehicle until the fuel is as low as possible.
  • Step 2: Feed the siphon pump tubing into the fuel tank.
  • Step 3: Pump the fuel into the fuel storage tank.
  • Step 4: Dispose of or store the fuel.
  • Materials Needed.
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    What must you do before working on fuel system?

    Before work is done on a fuel tank, what should I do?

  • Disconnect the battery and remove or turn off ignition sources before draining the tank.
  • Drain tanks only in well-ventilated areas, preferably outdoors.
  • Drain the fuel into containers that are approved for use with flammable liquids.
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    How do you disconnect a high pressure fuel line? (video)

    https://www.youtube.com/watch?v=DvngvwOy2ns

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