I need to know how to install a fuel pressure regulator on a 98 GMC K3500 4x4

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How to Remove Install Fuel Pressure Regulator - YouTube

? 5:47
https://www.youtube.com/watch?v=rg7ftqJyQUg
Oct 7, 2013 - Uploaded by MattHumanPizza
A check of the fuel pressure regulator, as well as the removal and installation process is ... Yeah the regulators are sht on the 98/02 2.0 ford motor. .... Replacing a Fuel Pressure Regulator ona 2001 Chevy Silverado 1500 (5.3L) ... 2005 Ford explorer 4.0 V-6 engine Fuel Rail Pressure Sensor removal ...

It sounds like you have a restricted fuel flow, which could possibly be a weak fuel pump or a bad fuel pressure regulator. Do a fuel pressure test to see if your fuel is being restricted. If it's only in the morning, that means its loosing its pressure over night. That could also be caused by a bad fuel injector. Test your pressure first.

YOUR VECHICLE HAS THE CMFI OR CSEFI FUEL METER BODY UNIT WHICH CONTROL THE FUEL PRESSURE.WHICH ITSELF IS YOUR FUEL PRESSURE REGULATOR.

You are right, all of the symptoms are pointing to a fuel pressure regulator. Also try inspecting your vacuum line going to your fuel pressure regulator.
Matt

it regulates the amount of pressure going to the injectors located at end of fuel rail under hood

You need to look at the pressure regulator and the little hose going to it! It is usually located somewhere on the fuel rail!Good luck!

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.
   
   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

Sounds to me like either your pressure regulator is bad or you have a loose fitting somewhere in the fuel line from the fuel pump to the engine. When you turn your key to the on position, you should hear the whine of the fuel pump until it builds pressure. When you shut the truck off the pressure regulator should retain the pressure for a certain amount of time but if it don't close then air is allowed into the fuel line and the fuel drains down to fuel line away from the engine. Next time you try and start the truck after it has sat for a while try turning the key on until you hear the fuel pump whine shut off, then repeat it 3-5 times and then try to start it. Basically that is running the pump enough to get the fuel back up to the injectors. Check for loose fittings in the fuel line, or cracks in the fuel line and if all that is fine then replace the regulator.

Hope that helps

had this problem on my neighbors 98 chevy truck with the same engine !!
it turnd out too be the fuel pressure regulator,you have too pull the upper intake too replace it!!

How do you know that it is the regulator?
these 4.3 motors had a lot of trouble from 93 to 98, I know I had 2 of them.
What happened to mine was that the intake kept getting very carboned up. After I would clean it, the truck would run fine for about 5 or 6 months, then same thing.
Theres actually a class action lawsuit about this that I believe has been settled, you may have recourse if you bought it through a dealer. Good luck.You'll need it.