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It is inclusive in the fuel pump. There isnt a replacement only replace the fuel pump. I just took of the intake manifold assembly to look for it and it was not there. I then dropped the fuel tank and it is not there. The answer sad to say is replacing the fuel pump. Use the AC Delco Fuel pump the generic brands failed ed a few people multiple times.
the fuel filter would be the first place i would go, especially if it has not been replaced recently. it can cause slow priming of the fuel pump, resulting in hard starting. in addition, if your truck has never been tuned up, a set of spark plugs could make the world of difference - i believe on your particular truck it is recommended to change them at least every 100,000 M. good luck!
You didn't say if it crankes over if it dose check for spark. If you have no spark replace your distriburator modual. Also check for fuel pressure no fuel pressure may need a fuel pump in fuel tank hope this helps CJ
Start with the simple and replace the fuel filter. The fuel filter may have reached the end of it's life time and is dirty causing the issues you have. The worst is the fuel pump it self has gone bad and needs to be replaced, the fuel pump should be producing 62 to 65 PSI when the engine is started and should drop no more then 5 PSI when the engine is running. You can check the fuel pressure at the shredder valve with a fuel pressure gauge. Good luck and keep me posted, be glad to help get your Yukon running 100% again.
it could be alot of things...you could start by routine maintnence( new spark plugs, spark plug wires, air filter, oil change, the in line fuel filter) also take into consideration what kind of gas you are using...i know it sucks spending $100 a week in gas with your AWD 6.0 liter V-8...but if ur not running premium it could very well be your problem. I have also heard of the denali's having oxygen sensor issues...is it throwing a check engine code?
First i would listen to hear if the fuel pump is running!! It will sound like it is whinning back by the fuel hole in the side of the truck! Good possiblity that you burnt the fuel pump up in the truck!! I would try and go to the fuel filer if you dont see anything wrong with the pump! If the filter has been changed and still not crankin up then i would remove the fuel line ( may require special tool) and see if you are getting fuel to the motor!!
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