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Herman and Operation 30MPG
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- Posts: 27
- Joined: Sat May 28, 2011 7:21 pm
- Year and Model: 97 850na, 00 s70na
- Location: Louisville, KY
- Has thanked: 1 time
Re: Herman and Operation 30MPG
HI there... you describe the exact problem I'm having with acceleration on my 2000 s70...can you tell me where the fuel pressure regulator is located?
2000 s70na 228k mi - daughter's car
1997 850na 87k mi - daughters
inherited from little old lady
1997 850na 87k mi - daughters
inherited from little old lady
- callahanoffroad
- Posts: 433
- Joined: Mon Jun 30, 2014 5:25 pm
- Year and Model: 1995 850
- Location: St. Louis Missouri
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Re: Herman and Operation 30MPG
Hey Jfife83, it's on the fuel rail.
Here are some handy dandy pictures.
My issue was the vacuum line that you can see me holding in the first picture. The line had swollen and lost its air tight connection.
You need to pull the two bolts on the fuel rail and, replace the vacuum line. Yours may be different depending on model year but they function the same way.
Hope that helps!
Author, Chef, and Shade Tree Mechanic
1995 Volvo 850, Non-Turbo, VVIS, LH FI, Green, 215,000 miles. B5254FS engine. Herman. viewtopic.php?f=1&t=84393
1996 Volvo 850, died at 280,000
Founder of: CookingForChemo.Org
Read my Silly Comic Book at: therealpizzabros.com/
1995 Volvo 850, Non-Turbo, VVIS, LH FI, Green, 215,000 miles. B5254FS engine. Herman. viewtopic.php?f=1&t=84393
1996 Volvo 850, died at 280,000
Founder of: CookingForChemo.Org
Read my Silly Comic Book at: therealpizzabros.com/
- erikv11
- Posts: 10129
- Joined: Sat Jul 25, 2009 2:03 pm
- Year and Model: 850, V70, S60R, XC70
- Location: Iowa
- Has thanked: 129 times
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Re: Herman and Operation 30MPG
The fuel pressure regulator is not on the fuel rail for any S70 cars. That position will have a fuel pressure damper installed, there is no vacuum line to those and I don't think I have ever heard of any problems with a damper.
On a 2000 S70 the FPR is either down on the steering rack or back by the fuel filter. However the FPR still has a vacuum line like on this 850, and you can check the vacuum line once you find the FPR. Also common is the FPR fails inside, you'l know this if the vacuum line reeks badly of gasoline.
On a 2000 S70 the FPR is either down on the steering rack or back by the fuel filter. However the FPR still has a vacuum line like on this 850, and you can check the vacuum line once you find the FPR. Also common is the FPR fails inside, you'l know this if the vacuum line reeks badly of gasoline.
'95 854 T5-R, Motronic 4.4, 185k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 293k
'06 S60 R, 167k
'07 XC70, 170k
'99 Camry V6
130k
gone: '96 NA 850 210k, '98 NA V70 182k
'96 855 NA, 145k
'98 S70 NA, 220k (living out west)
'98 V70, T5 tune-injectors-turbo, LPT engine, 293k
'06 S60 R, 167k
'07 XC70, 170k
'99 Camry V6

gone: '96 NA 850 210k, '98 NA V70 182k
- abscate
- MVS Moderator
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- Joined: Sun Feb 17, 2013 5:54 pm
- Year and Model: 99T5 ,99S70,2005V70
- Location: NYC, ALBANY NY
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Re: Herman and Operation 30MPG
My 1999 S70 (Denso engine management) doesn't have a vacuum controlled FPR - the fuel pressure is regulated by pump modulation only.
I think the 2000 continues this, but Ive learned there are enough variations that I don't know about to be careful.
Look at the vacuum line diagram on your hood to see if you see the FPR
I think the 2000 continues this, but Ive learned there are enough variations that I don't know about to be careful.
Look at the vacuum line diagram on your hood to see if you see the FPR
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary
- callahanoffroad
- Posts: 433
- Joined: Mon Jun 30, 2014 5:25 pm
- Year and Model: 1995 850
- Location: St. Louis Missouri
- Has thanked: 16 times
- Been thanked: 44 times
Re: Herman and Operation 30MPG
Okay here's the promised pics of the new headlights.
As you can see... You can see!
As you can see... You can see!



Author, Chef, and Shade Tree Mechanic
1995 Volvo 850, Non-Turbo, VVIS, LH FI, Green, 215,000 miles. B5254FS engine. Herman. viewtopic.php?f=1&t=84393
1996 Volvo 850, died at 280,000
Founder of: CookingForChemo.Org
Read my Silly Comic Book at: therealpizzabros.com/
1995 Volvo 850, Non-Turbo, VVIS, LH FI, Green, 215,000 miles. B5254FS engine. Herman. viewtopic.php?f=1&t=84393
1996 Volvo 850, died at 280,000
Founder of: CookingForChemo.Org
Read my Silly Comic Book at: therealpizzabros.com/
- abscate
- MVS Moderator
- Posts: 23709
- Joined: Sun Feb 17, 2013 5:54 pm
- Year and Model: 99T5 ,99S70,2005V70
- Location: NYC, ALBANY NY
- Has thanked: 440 times
- Been thanked: 1333 times
Re: Herman and Operation 30MPG
I can’t see the headlights


Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary
-
- Posts: 27
- Joined: Sat May 28, 2011 7:21 pm
- Year and Model: 97 850na, 00 s70na
- Location: Louisville, KY
- Has thanked: 1 time
Re: Herman and Operation 30MPG
Herman...abscate and erikv11
Thanks for the info...will let you know what I find
Thanks for the info...will let you know what I find
2000 s70na 228k mi - daughter's car
1997 850na 87k mi - daughters
inherited from little old lady
1997 850na 87k mi - daughters
inherited from little old lady
- abscate
- MVS Moderator
- Posts: 23709
- Joined: Sun Feb 17, 2013 5:54 pm
- Year and Model: 99T5 ,99S70,2005V70
- Location: NYC, ALBANY NY
- Has thanked: 440 times
- Been thanked: 1333 times
Re: Herman and Operation 30MPG
I know I mentioned the hood sticker, but use that to go looking for your components, not as Gospel
Volvo put a 1998 sticker on my 1999
Volvo put a 1998 sticker on my 1999
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 BMW
Link to Maintenance record thread
Link To Volvo Glossary
- callahanoffroad
- Posts: 433
- Joined: Mon Jun 30, 2014 5:25 pm
- Year and Model: 1995 850
- Location: St. Louis Missouri
- Has thanked: 16 times
- Been thanked: 44 times
Re: Herman and Operation 30MPG
I'll second that. Mine says '95 everywhere but is mechanically a '94. Which made for some confusion the first year I owned it
Author, Chef, and Shade Tree Mechanic
1995 Volvo 850, Non-Turbo, VVIS, LH FI, Green, 215,000 miles. B5254FS engine. Herman. viewtopic.php?f=1&t=84393
1996 Volvo 850, died at 280,000
Founder of: CookingForChemo.Org
Read my Silly Comic Book at: therealpizzabros.com/
1995 Volvo 850, Non-Turbo, VVIS, LH FI, Green, 215,000 miles. B5254FS engine. Herman. viewtopic.php?f=1&t=84393
1996 Volvo 850, died at 280,000
Founder of: CookingForChemo.Org
Read my Silly Comic Book at: therealpizzabros.com/
- befarrer
- Posts: 90
- Joined: Mon Nov 11, 2019 7:41 am
- Year and Model: 1998 V70 AWD
- Location: Edmonton, Alberta
- Has thanked: 1 time
- Been thanked: 6 times
Re: Herman and Operation 30MPG
I don't even have a sticker, or any reminants of one.
98 V70 GLT AWD
05 VW Golf TDI
93 Mazda B2200 with 13B rotary engine swap
05 VW Golf TDI
93 Mazda B2200 with 13B rotary engine swap
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