IPD sale XeMODeX - Experts in Volvo Electronics
Did you know? 🤔
Logged in users can get email notification of topic replies Log in or register (free).
Amazon Link Buy your stuff using this and it helps MVS!

What is the fuel pressure-like device's purpose under the car

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

Svenska
Posts: 11
Joined: Sun Nov 22, 2009 4:29 pm
Year and Model: 1995 850 GLT
Location: Massachusetts
Has thanked: 0
Been thanked: 0
Svenska

What is the fuel pressure-like device's purpose under the car

Post by Svenska » Sat May 13, 2017 7:02 pm

RE:1995 850 non-turbo. I just discovered that I have a gas leak under the car that is coming from the vacuum/diaphragm/round shaped device that looks like a fuel pressure regulator. Volvo calls it a "fuel pressure pulse regulator". Mine is completely rusted and leaks. It is an obsolete part from Volvo. My question is, what does it really do? and can I remove it and put a piece of fuel line in its place? It goes to the metal fuel pressure rail on the engine. Any ideas?

User avatar
abscate
MVS Moderator
Posts: 19687
Joined: Sun Feb 17, 2013 5:54 pm
Year and Model: 99T5 ,99S70,2005V70
Location: NYC, ALBANY NY
Has thanked: 248 times
Been thanked: 806 times
Trinidad & Tobago
abscate

Re: What is the fuel pressure-like device's purpose under the car

Post by abscate » Sat May 13, 2017 8:03 pm

It, uh, regulates the fuel pressure. It's important. You should be able to get one off eBay or a junkyard.

Replacing it with straight hose is a bad idea.
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

Post Reply
  • Similar Topics
    Replies
    Views
    Last post