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Herman and Operation 30MPG

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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jfife83
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Re: Herman and Operation 30MPG

Post by jfife83 »

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
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callahanoffroad
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Re: Herman and Operation 30MPG

Post by callahanoffroad »

jfife83 wrote: Tue Dec 03, 2019 8:36 am 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?
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!
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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

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erikv11
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Re: Herman and Operation 30MPG

Post by erikv11 »

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.
'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
'99 Camry V6 :shock: 130k
gone: '96 NA 850 210k, '98 NA V70 182k
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abscate
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Re: Herman and Operation 30MPG

Post by abscate »

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
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callahanoffroad
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Re: Herman and Operation 30MPG

Post by callahanoffroad »

Okay here's the promised pics of the new headlights.

As you can see... You can see! :lol: :lol: :lol:
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20191205_173702.jpg
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/
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abscate
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Re: Herman and Operation 30MPG

Post by abscate »

I can’t see the headlights

:)
Empty Nester
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Link to Maintenance record thread
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jfife83
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Re: Herman and Operation 30MPG

Post by jfife83 »

Herman...abscate and erikv11
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
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abscate
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Re: Herman and Operation 30MPG

Post by abscate »

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
Empty Nester
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callahanoffroad
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Re: Herman and Operation 30MPG

Post by callahanoffroad »

abscate wrote: Thu Dec 05, 2019 7:04 pm 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
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/
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befarrer
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Re: Herman and Operation 30MPG

Post by befarrer »

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
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