Question about 1999 GMC Suburban

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How do you check the fuel pressure on a 99 suburban

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You need to get a fuel pressure tester. If your going to buy one, instructions come with it.

Posted on Jan 26, 2009

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You need help pushing it down against the O-ring,
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Location of the fuel pressure regulator valve 99 chevy suburban with a 7.4 liter engine


http://www.youtube.com/watch?v=vTvDCFRHJXE&feature=related


http://www.youtube.com/watch?v=UHTV3W5VI5w

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I would recommend performing a fuel pressure test to start with..

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Where is the fuel pressure regulator on a 99 gmc suburban 2500 7.4l v8


5.7L And 7.4L Engines
  1. Disconnect the negative battery cable.
  2. Relieve the fuel system pressure.
  3. Remove the upper manifold assembly.
    NOTE If the fuel pressure regulator is to be reinstalled, inspect the filter screen (if equipped) for contamination. If the filter screen is contaminated, replace the regulator.
  4. Disassemble the fuel pressure regulator snap ring retainer.
  5. Disassemble the regulator assembly and the O-rings.
  6. Discard the O-rings.

    0996b43f80205553.jpg Fig. Fuel pressure regulator
To install:
  1. Lubricate the new O-rings with clean engine oil.
  2. Install the backup O-ring, the large O-ring, the filter and the small O-ring.
  3. Assemble the regulator with the vacuum tube pointing down into the snap ring retainer.
  4. Install the upper manifold assembly.
  5. Connect the negative battery cable.
Good luck

Mar 02, 2010 | 1999 GMC Suburban

2 Answers

99 suburban missing only at idle


Hello;
Have you checked the fuel pressure? You may have a sticking fuel regulator, causing too much fuel at idle. Since it works fine off idle and cruise I would look there.
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Rich
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Jun 10, 2009 | 1999 GMC Suburban

1 Answer

I have a suburban 99 and at high speed starts missing


did you check your plug wires for grounds? do you have coils or a cap and rotor (i would think by '99 that thay would have deep sixed the distributor, but i have been wrong before)? have you checked the fuel pressure? possible blocked filter? can the problem be replicated in neutral or does it only happen in a 'load'?

Jun 03, 2009 | 1999 Chevrolet Suburban

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Evaporative emissions control system pressure sensor 99' suburban


Hello, You have an emission sytem problem . The actual sensor is on top of the fuel tank that lets the system know how much air pressure is on the system, its made in the fuel pump module, but if your system has a po440 code do not waste your time replacing it. You (99 percent sure) will have a canister and vent valve. They will cost about 150 dollars to replace. Please rate my answer. Thank You.

Feb 18, 2009 | 1999 Chevrolet Suburban

1 Answer

My 99 Suburban is intermittently starting.....


Unfortunately the fuel pump can still be bad. The pump has a check valve on it that wears out. The pump will continue to run but, struggles to supply enough fuel to start the engine. You can buy a fuel pressure test gauge from Auto Zone or that type of auto parts store and check the pressure. You can purchase a fuel pump from them too.

Dec 27, 2008 | 1999 GMC Suburban

1 Answer

99 chevy suburban intermittenly not starting....fuel pump is runn


Unfortunately the fuel pump can still be bad. The pump has a check valve on it that wears out. The pump will continue to run but, struggles to supply enough fuel to start the engine. You can buy a fuel pressure test gauge from Auto Zone or that type of auto parts store and check the pressure. You can purchase a fuel pump from them too.

Dec 27, 2008 | 1999 GMC Suburban

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