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Posts: 91
Location: Norwalk, CT
Registered: May 2005
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Engine will not turn over - (FPR) Fuel Pressure Regulator Replacement
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Sat, 16 February 2008 21:27
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Hi all!
As promised, but a little delayed - Here we are the replacement of the Fuel Pressure Regulator or 'FPR'.
Reason for replacement: For about a two years, I have had continued problems starting my rather non modified S40 engine. It progressively got worse in being able to start. It was especially hard to start in the colder weather. It could take 3-5 turns of the ignition key to prime the engine to crank it over. Thanks to the help of fellows on this board I was able to deterimine the cause. Leaking fuel pressure from the FPR.
*(As a side note; the next step was to replace the injector o-rings which can be bought for a set $10, and can be done the same time as replacing the FPR)
Cost of OEM part as of 2008: $108 (including tax) available for ~$80 online.
OEM Part Number: 8658092 (for 2001 Volvo S40)
For a novice weekend grease monkey this engine operation will take from 30-45 minutes (with clean-up...more explaination to come). The more experience professional should be able to do this in 15-20 minutes.
The following is the basic description of tools and steps to complete this repair... (Enjoy)
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Posts: 91
Location: Norwalk, CT
Registered: May 2005
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Posts: 91
Location: Norwalk, CT
Registered: May 2005
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Posts: 91
Location: Norwalk, CT
Registered: May 2005
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Posts: 91
Location: Norwalk, CT
Registered: May 2005
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Posts: 4083
Location: The Bronx
Registered: May 2005
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Re: Engine will not turn over - (FPR) Fuel Pressure Regulator Replacement
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Sun, 17 February 2008 07:19

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Very nice write up perhaps the best made ever.You really spent some time and effort on this one.Thank you.
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Posts: 91
Location: Norwalk, CT
Registered: May 2005
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Re: Engine will not turn over - (FPR) Fuel Pressure Regulator Replacement
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Sun, 17 February 2008 07:31

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Thanks man, I was so freaking happy when this solved my engine issue, I thought I would add some of my mad corporate powerpoint skills to this write-up
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Posts: 1129
Location: Tampa Bay Area, Florida
Registered: February 2004
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Re: Engine will not turn over - (FPR) Fuel Pressure Regulator Replacement
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Sun, 17 February 2008 14:08

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GREAT write-up! Its very easy to follow and I'm sure it will help a lot of us
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Posts: 184
Location: South Africa
Registered: February 2008
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Re: Engine will not turn over - (FPR) Fuel Pressure Regulator Replacement
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Tue, 25 March 2008 23:45

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Hmmm...
Sometimes my car doesnt start immediately. Very seldom though, and mostly on cold days.
It takes about 2 attempts before it goes.
Will this fpr issue also affect performance?
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Posts: 7503
Location: St.Louis, MO
Registered: February 2003
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Posts: 7503
Location: St.Louis, MO
Registered: February 2003
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Re: Engine will not turn over - (FPR) Fuel Pressure Regulator Replacement
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Thu, 03 April 2008 18:01

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so does the o-ring on the plastic housing for the FPR actually go in the fuel rail, or does it form a seal between the fuel rail and FPR housing?
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Posts: 184
Location: South Africa
Registered: February 2008
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Re: Engine will not turn over - (FPR) Fuel Pressure Regulator Replacement
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Fri, 04 April 2008 01:59

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I removed my engine cover last night and my fpr does not sit in the same place as the above pics
I have a Phase1 S40 T4
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Posts: 306
Location: Westfield, MA
Registered: March 2008
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Posts: 2600
Location: Atlanta,GA Orlando,FL
Registered: February 2005
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Re: Engine will not turn over - (FPR) Fuel Pressure Regulator Replacement
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Sun, 06 April 2008 16:30

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| bpray9223 wrote on Sun, 06 April 2008 19:15 | Is this the place where I would hook up a vacuum line to go to my aftermarket BOV?

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NO! That is for the fuel pressure regulator. The line you want is the furthest back from the front of the throttle body.
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Posts: 306
Location: Westfield, MA
Registered: March 2008
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Re: Engine will not turn over - (FPR) Fuel Pressure Regulator Replacement
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Sun, 06 April 2008 17:12

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Do you have a picture of where it is?
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