New? Start here. See the forum's active topics. Say hi contact Matthew.
This Amazon link helps MVS!

Fuel Pressure Regulator

Let’s talk Fuel Pressure Regulator

Fuel Pressure Regulator

Fuel Pressure Regulator Symptoms

In addition to tackling codes this weekend, I recently noticed the smell gas inside and outside my 850. I popped the hood and noticed a slow leak from the fuel pressure regulator. I disconnected the vacuum line, which NOW, I know was a big mistake because after reading the Chilton’s manual, it tells me to relieve the pressure before disconnecting anything. Well… anyhow, the line looks good, no cracks or holes. I believe the leak is coming from the top of the regulator. Either way, its in a spot where I can’t tell exactly, but the gas builds a small pool.

Fuel Pressure Regulator Swap Tutorial

The new f.p.r. on the left and the old f.p.r. on the right. If this is the cause of my leak, the only thing I can think of is maybe the orange o-ring shrunk. Everything else looks ok.

Fuel Pressure Regulator

A look at the injectors. They are D-I-R-T-Y. Don’t worry, I cleaned them up the best I could before I put them back in. Also, you can see where the gas stained the manifold. The leak pooled at the top of the manifold and leaked down to cause that stain.

Read More…

Subscribe to the MVS Newsletter

The MVS Volvo Newsletter is a once-a-month email delivered to your email. It’s simple to unsubscribe at any time if you change your mind.

Visit The Official Volvo Cars Website


System service came on. analyst said 4th injector not working. How do I remove & replace injectors. do I need to do all 2002 v70xc w/175,000mi also abs service light came on do I need new wheel sensors?

Leave a Reply