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Fuel leak coming behind hard fuel line near firewall

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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erikv11
Posts: 11800
Joined: 25 July 2009
Year and Model: 850, V70, S60R, XC70
Location: Iowa
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Re: Fuel leak coming behind hard fuel line near firewall

Post by erikv11 »

m491 wrote:My 96 Turbo and 97 GLT don't have this on that section of the fuel line. But don't some models have the pulse attenuator up near the fuel rail? ...
Yes. For example, in every 98 I have looked at, the pulse attenuator plugs directly into the rail, where the fuel pressure regulator (FPR) is located in many other model years.

Volvo installed many variations of fuel delivery into these cars. With and without a return line, FPR at the rail or at the firewall or back at the fuel filter, and the pulse dampener in various places, through the different years.

Since I am not expert in the various systems but fuel delivery seems pretty important, I try to retain what was installed, or switch completely from one system to the other if working with a parts car and a keeper. On fuel delivery I don't make guesses about which parts are important or why. So IMHO the junkyard idea is a good, cheap solution. As you have no doubt figured out from your searching, failure of this part is very uncommon so no, it is absolutely not true that they will all be rusted out at the yard. I would at least go look. The tricky thing may be finding a model that actually has it, though.
'95 854 T-5R, Motronic 4.4, 185k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 197k
'07 XC70, black, 205k
'07 XC70, willow green, 212k
'99 Camry V6 :shock: 153k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k

m491
Posts: 164
Joined: 24 January 2011
Year and Model: 1997 854 GLT
Location: Pennsylvania

Post by m491 »

Last week the purge valve on the other kid's turbo went and all I found were NA 850's. This week it will probably be all turbo's knowing my luck. But I have the part number ready to order with Tasca the new fuel line. I'll post what I find out after playing with this.
2019 XC60
1997 854 GLT (sold)
1996 855 Platinum (sold)
1994 854 GLT 5 speed (sold)
1995 854 (RIP saved my kid)
2005 V70R (sadly missed)
1998 V70 AWD (sold)

User avatar
erikv11
Posts: 11800
Joined: 25 July 2009
Year and Model: 850, V70, S60R, XC70
Location: Iowa
Has thanked: 292 times
Been thanked: 765 times

Post by erikv11 »

For fuel delivery I don't think turbo/non-turbo will matter. But you will see what is available when you get there ... thanks, post it up once you get it sorted.
'95 854 T-5R, Motronic 4.4, 185k
'98 V70, T5 tune-injectors-turbo, LPT engine, 304k, daily driver
'06 S60 R, 197k
'07 XC70, black, 205k
'07 XC70, willow green, 212k
'99 Camry V6 :shock: 153k
gone: '96 NA 850 210k, '98 NA V70 182k, '98 S70 NA 225k, '96 855 NA 169k

m491
Posts: 164
Joined: 24 January 2011
Year and Model: 1997 854 GLT
Location: Pennsylvania

Post by m491 »

I had to break down and buy the new part from Tasca. From what I can tell the front end of teh fuel line had a 17 mm fitting that compresses the new line to the metal engine compartment lines.

The one thing that seems tricky (at least until you do it one time) is the cover that protects the fuel line under the passenger side. I see there are some sort of plastic screws that hold it in place. I tried to screw them off but not a lot of success. Do these just pull out and then snap back into place? Otherwise it looks fairly straight forward and I'll do the fuel filter while I'm doing the fuel line.
2019 XC60
1997 854 GLT (sold)
1996 855 Platinum (sold)
1994 854 GLT 5 speed (sold)
1995 854 (RIP saved my kid)
2005 V70R (sadly missed)
1998 V70 AWD (sold)

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