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Need Help Locating Fuel Pressure Regulator On A 2005 Yukon Xl 5.3l


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#1 05YukonXL

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Posted 11 February 2009 - 01:15 AM

Hi all,

I have a 2005 GMC Yukon XL 1500 4WD 5.3L.
I want to replace the fuel pressure regulator in order to hopefully eliminate an intermittent starting problem (when starting the first turn of the key it will not start.....just cranks....once I turn the key and retry it starts right up).

Can someone tell me where it is located ? I looked on the fuel rail but cannot find it...

Thanks in advance !

#2 05YukonXL

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Posted 12 February 2009 - 11:32 AM

Ok, just went to the dealer and found out from the parts dept. that the fuel pressure regulator on this truck is part of the fuel pump... $$$$

Part itself (pump) is $ 744 CDN !!!

Does anyone else have had this problem on a 5.3L engine in a 2005 ?

I hope the problem is somewhere else...

Any clues would be much appreciated !

#3 Draenor

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Posted 12 February 2009 - 11:37 AM

Have you checked the fuel pressure at idle and after the engine rested for a hour?


2004 GMC 2500 Sierra Metallic Gray CC/SWB


#4 05YukonXL

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Posted 12 February 2009 - 11:52 AM

Have you checked the fuel pressure at idle and after the engine rested for a hour?


No. But I'd like to do it. Is this something I can do myself ? How to, and which tools do I need ?

Thank you !

#5 Draenor

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Posted 12 February 2009 - 03:08 PM

Autozone or the like should have a lend a tool. Just ask for a fuel pressure tester. Hook it up to the test port on the fuel rail and turn the key on. the pump will turn on. Take your reading. Then turn everything off and see if it drops. If it doesnt, leave the guage on for a hour or so and then check. There should not be more than a psi or two difference fro mthe on position.


2004 GMC 2500 Sierra Metallic Gray CC/SWB





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