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DIY FPR vacuum line replacement

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

evdrive
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Re: DIY FPR vacuum line replacement

Post by evdrive »

Thank you so much! Without your pictures I would still be searching for that darn fuel pressure regulator line.
cn90
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Re: DIY FPR vacuum line replacement

Post by cn90 »

1+,

I just want to say thanks to jreed, I have the exact same crumbling elbow connector.
I have been looking for info on this mysterious vacuum hose and remember this post by jreed!
Will work on it ASAP, will use standard vacuum hose.
2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+
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chrafael
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Re: DIY FPR vacuum line replacement

Post by chrafael »

If you're thinking of leaving the small line off, remember that the intake manifold line goes from negative (vacuum) to positive (boost) pressure, the intake hose doesn't. My Volvo software describes it as removing moisture from within the regulator. It may hold sweat due to its location.
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jreed
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Re: DIY FPR vacuum line replacement

Post by jreed »

Interesting! Can you post up the description from the Volvo software? Thanks!
1997 855 GLT (Light Pressure Turbo) still going strong. Previous: 1986 240 GL rusted out in '06, 1985 Saab 900T rusted out in '95, 1975 Saab 99 rusted out in '95, 1973 Saab 99 rusted out in '94
Syd_c70
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Year and Model: C70 2002
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Re: DIY FPR vacuum line replacement

Post by Syd_c70 »

Thanks jreed and TRuck. Your repairs with pics are great for the forum.
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jreed
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Re: DIY FPR vacuum line replacement

Post by jreed »

You're welcome! Glad to be able to help!
1997 855 GLT (Light Pressure Turbo) still going strong. Previous: 1986 240 GL rusted out in '06, 1985 Saab 900T rusted out in '95, 1975 Saab 99 rusted out in '95, 1973 Saab 99 rusted out in '94
Bardicdesign
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Year and Model: 1998 s70
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Re: DIY FPR vacuum line replacement

Post by Bardicdesign »

I am still having a hell of a time locating this metal line to replace my crumbled vacuum line. Any tips on how to easily find it? I feel like it's behind the wall of PCV lines and that I'd have to get under the car or check behind the wheel panel on the driver's (american) side. Am I way off or am I just looking too far back by the turbo?

Any advice would be so much appreciated. I'm pulling out what's left of my hair trying to find this port. :-)
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jreed
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Re: DIY FPR vacuum line replacement

Post by jreed »

My car is a '97 850, so it might be different from the '98 S70. On my car, the metal line is located nearly underneath the air intake tube that runs from the air filter housing to the turbo inlet. It is close to the lower radiator hose and the top of the transmission.
1997 855 GLT (Light Pressure Turbo) still going strong. Previous: 1986 240 GL rusted out in '06, 1985 Saab 900T rusted out in '95, 1975 Saab 99 rusted out in '95, 1973 Saab 99 rusted out in '94
JLv70t5
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Re: DIY FPR vacuum line replacement

Post by JLv70t5 »

Thank you for this topic! Glad I found it I was trying to figure out what that hose went to
20200603_175242.jpg
The FPR line is broken off in the end of mine. As long as there is enough left to attach to will this be a problem if I just replace the hose?
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jreed
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Re: DIY FPR vacuum line replacement

Post by jreed »

You should be in good shape if you replace the hose and get a good seal to the remaining piece of metal pipe. That metal pipe runs all the way over to the other end of the engine to the fuel pressure regulator.
1997 855 GLT (Light Pressure Turbo) still going strong. Previous: 1986 240 GL rusted out in '06, 1985 Saab 900T rusted out in '95, 1975 Saab 99 rusted out in '95, 1973 Saab 99 rusted out in '94
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