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  #12521  
Old 07-24-2020, 09:47 PM
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Fuel pressure test complete.

10 PSI Key on not running
50 PSI After start and running at idle
10 PSI Turned car off and within 30 seconds

Thanks

Brad
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2004 E53 X5 3.0 6MT Sport
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  #12522  
Old 07-24-2020, 09:47 PM
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Fuel pressure test complete.

10 PSI Key on not running
50 PSI After start and running at idle
10 PSI Turned car off and within 30 seconds

Car is sitting at nearly 139K miles.

Just replaced the alternator and as I have seen here before both the alternator and fuel pump could fail at about the same mileage.

Thanks

Brad
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Bradb
2004 E53 X5 3.0 6MT Sport
Toledo Blue Metallic over black
born 2-12-04 LB09220
Picked up 7-2-18 from Ziggy
BMWCCA 485746
2002 E39 525i 5MT sport Jet black / black
2002 E39 M5 6MT Carbon black / black sport
2003 E39 530i 5MT sport Stahlblau metallic
2004 E46 325ic 5MT sport triple black
2008 E60 M5 SMG Space gray / black
2015 F85 X5M Carbon black / black
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  #12523  
Old 07-24-2020, 11:46 PM
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What did you do to / for your E53 today??

Fuel pump lifespan is hours not distance but one of ours failed at about 130,000 miles the other lasted over 180,000 and was replaced before failure.

The FPR o-ring failed on wife's car at 185,000 or so leading to the drop of pressure when off as the easy to measure metric. 50 psi was 40 in seconds and 10 psi in a couple hours. (And zero overnight)

After replacing FPR it held 25 psi for 16 hours.

The o-ring seals between the high pressure side and return line of FPR.

I kept the old FPR so I can test when I replace my FPR/filter as I'm quite sure just the o-ring failed (typical BMW M.O.)
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  #12524  
Old 07-25-2020, 04:45 AM
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Thanks for the reply.

If the FPR is failing what is the next step?

Brad
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Bradb
2004 E53 X5 3.0 6MT Sport
Toledo Blue Metallic over black
born 2-12-04 LB09220
Picked up 7-2-18 from Ziggy
BMWCCA 485746
2002 E39 525i 5MT sport Jet black / black
2002 E39 M5 6MT Carbon black / black sport
2003 E39 530i 5MT sport Stahlblau metallic
2004 E46 325ic 5MT sport triple black
2008 E60 M5 SMG Space gray / black
2015 F85 X5M Carbon black / black
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  #12525  
Old 07-25-2020, 10:12 AM
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You are describing the near identical steps I've just gone though.

It's a pain to remove the underbelly protection but once that is off it's easy.



This o-ring failed. You could probably just replace or even wrap with Teflon tape and it would fix the problem.
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  #12526  
Old 07-25-2020, 10:14 AM
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The FPR is a combination unit with the fuel filter but does come off so you could likely just repair it.
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  #12527  
Old 07-25-2020, 11:10 AM
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Quote:
Originally Posted by EODguy View Post
Polish and always pull your wipers up and dust the whole thing off after cleaning the rubber


Forgot to add "be perpetually pissed"

Sent from my SM-A730F using Tapatalk

EODguy, what do you use to polish your windshield?
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  #12528  
Old 07-25-2020, 11:43 AM
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What did you do to / for your E53 today??

Quote:
Originally Posted by absolutezero273c View Post
EODguy, what do you use to polish your windshield?


Not to jump in the middle of your convo with EOD, but I use the same ceramic coating I use on the body, on the glass .

It works WAY better than products like RainX and last WAY longer between applications. Only thing I do “differently” is that I feel like I “buff” the glass a bit more than I do the body.

Don’t know that product matters per say, I’ve used Nugenix, Chemical Guy, “auto zone” products, you name it and they were all better than glass specific coatings.


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  #12529  
Old 07-25-2020, 12:08 PM
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I use Nu-glass polish and then rainx although one of the other guys a ceramic stovetop polish.

Sent from my SM-A730F using Tapatalk
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  #12530  
Old 07-25-2020, 02:04 PM
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Quote:
Originally Posted by EODguy View Post
I use Nu-glass polish and then rainx although one of the other guys a ceramic stovetop polish.

Sent from my SM-A730F using Tapatalk


Glass stove top ceramic polish was what actually got me to using the ceramic coat on my glass as well . It works a treat! And is as “durable” as on the body though heavy use of the wipers does reduce that some.


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