Question about 2000 GMC Yukon XL

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1998 4.3 1500 sierra gmc

We put a new fuel pump and filter in and my truck wo't start can you tell me the problem

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Did you check the fuel pump relay? often times this get's weak with time and when it goes bad you wont get fuel. it's located in the junction box under the hood. i just take the relay from the a/c clutch to check it. this should solve it. please rate this

Posted on Sep 01, 2008

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1 Answer

How to diagnose fuel injection problems on dodge 5.9


HII,
  1. Relieve the pressure in the fuel line before disconnecting it. To do so, you have to disable the electric fuel pump before you start the engine.To disable the fuel pump, do the following:
    1. With the engine off, remove the fuel pump fuse from the fuse box. (Your owner's manual should show you where it is.)
    2. Make sure that the parking brake is on and that the vehicle is in Park or Neutral, and then start the engine. It won't run very long after you start it up, but the pressure in the fuel lines will be reduced.
    3. Turn off the engine. With the fuel pump disabled, you're ready to disconnect the fuel lines from the filter.
  2. Look at the old filter and the new one before disconnecting anything.You should see an arrow stamped on both filters that shows in which direction the fuel flows through it. If the new one doesn't have an arrow on it, look to see in what direction the old filter is installed so that you can tell which end of the new filter goes where.
  3. Remove whatever is holding the old filter in place and remove it.
  4. Put the new filter on in the same position as the old filter.
  5. Replace whatever holds the filter in place, and make sure it's secure.
  6. Replace the fuse for the fuel pump in the fuse box. Make sure that the parking brake is on and that the vehicle is in Park or Neutral, and then start the engine and check for leaks around the filter.

Aug 24, 2015 | Dodge Cars & Trucks

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Where's the fuel filter? When should it be changed?


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Aug 24, 2015 | 2010 Cadillac SRX

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I have a 1997 Pontiac grand prix GTP super charged I thought i ran out of gas cuz it puttered out I kept trying to start it and pushing the gas so I put gas in it and it didn't start so my mechanic said I...


Wow flooding your fuel filter I've never heard that before the inside of the fuel filter is full of fuel constantly so don't really know what he was getting at umm ask your mechanic to check the oil pressure switch/sending unit it is designed to stop the fuel flow if it detects no oil pressure. now even if you are seeing oil pressure on the instrument cluster the instrument cluster and the PCM receive wo different signals from two different sending units

Jul 06, 2014 | Cars & Trucks

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Changed the fuel filter but now car won't start?Please Help!!!


are you sure it was the fuel filter the actual problem? may be the fuel pump went out? check to see if you have fuel in the tank some mechanics put some fuel in the fuel filter just like they do with the oild filter.

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2001 ford windstar, van has been setting for a year, got my license back and went to start the van, no fuel pump noise, replaced fuel pump, started just fine drove it around for a day parked it now wo


Can you hear the fuel pump run, if not it may have failed again. I have seen new fuel pumps last a day or two and then fail. If your pump is working then replace the fuel filter. Anytime you open the fuel system, you should replace the filter.

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Put new fuel filter on and a brand new fuel pump,and it still want start.


Are you sure its a fuel problem??? If so check the interia fuel cut off switch..The manual will tell you where it is...Its like a reset switch..If its pop up it kills the power to the pump

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No power from fuse to fuel pump


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