Replacing (rear) Fuel pressure regulator

Post by **xtrattitude4u** » 11 Aug 2010, 18:01

1998 Volvo S70 2.4L N/A

I have a non-return fuel system. The FPR is located just in front of the rear passenger wheel, as opposed to under the fuel rail.
When I ordered a new fuel pressure regulator, It was different from the original. I thought it was a mistake, but soon realized all suppliers are carrying this type.
The only difference is the fuel line fitting.

I called Bosch and gave them the number from the FPR on my car and they told me it's for V70 only.
I assumed previous owner put on wrong part? So I Go to junkyard for the FPR mount that I broke (made of plastic?!) and an S70 there had the same FPR as from my car. So did the V70 next to it.

So everyone online sells the same regulator (part#W0133-1608439 for most) and the original part is seemingly non existent.
Dealer: "Wow, I've never heard of a non return fuel system setup before. We show only the one for the rail."
A lot of help they were.

Here are the pictures.

FPR on left is off junkyard car. It is identical to mine.
FPR on right is brand new, the one that everyone carries. (except the dealer)
Notice the Fuel fitting is larger both in length and diameter on the new. Considering how tight the fit already is, there's no way the line will accept it.
If anyone has any ideas about why It's different let me know. Someone has to have had this problem already.

jlrsn · Post by **jlrsn** » 11 Aug 2010, 23:08

I'll be watching this thread as I also have a 98 S70. If everything else lines up you could always cut the hose nipple shorter and use a small aircraft quality hose clamp. Hopefully you'll receive additional info.
Good luck,
Jim

Post by **xtrattitude4u** » 12 Aug 2010, 14:48

The problem is the fuel line wont fit on in the first place, likely even without the flare at the end. I guess my problem is splicing a smaller fuel line into a larger one.

I'm at a loss for why the design was abandoned by Bosch so readily when the replacement doesn't fit. There must be some new instructions for installing it somewhere out there in the world of Volvo.

Post by **xtrattitude4u** » 17 Aug 2010, 12:37

Nobody? Come on, someone must have had this part fail on them. I've got a junkyard replacement on now, should I just call it good and send the new part back?

Post by **igel513** » 17 Aug 2010, 12:43

Was the FPR in thefront of the left or right rear wheel?

Post by **xtrattitude4u** » 17 Aug 2010, 13:07

Just forward of the right (Passenger) rear wheel. It is connected to the fuel filter with a quick-disconnect fitting.

Post by **xtrattitude4u** » 22 Aug 2010, 14:43

I just put on a junkyard replacement and called it good. I still haven't found an answer as to why the part is different from the original.

rfreely · Post by **rfreely** » 15 Mar 2012, 11:03

I have a 2000 Volvo S70 2.4 Liter non-turbo.
What were the signs that your fuel pressure regulator need to be replaced.
Some days we go to start the car, we turn the key, it acts like it wants to start, then the engine cuts out very shortly after attempting to start. We then again turn the key, it acts like it wants to start, then the engine cuts out very shortly after attempting to start. Usually on the third time the car starts. Can anyone provide some assistance.

Thanks

Randal

Post by **xtrattitude4u** » 21 May 2012, 09:17

Randal, If the fuel pressure regulator fails, it allows gas into it's vacuum line.
Pull the vacvuum line off and if even a drop of gas comes out you need a new regulator.
This is the only way that they fail to my knowledge.