Fuel pressure regulator
#21
On that note, is there something special about this regulator that makes it cost over $200? I don't see any wiring that goes to it in the picture (haven't looked on my car to verify this).
If I were to buy an aftermarket FPR, is the rate of fuel pressure rise so very different on these cars that an aftermarket one wouldn't work? I've just got problems spending over $200 on something so simple as a freaking FPR...
If I were to buy an aftermarket FPR, is the rate of fuel pressure rise so very different on these cars that an aftermarket one wouldn't work? I've just got problems spending over $200 on something so simple as a freaking FPR...
#22
#23
Hey guys I have a 2000 Volvo s40 it takes a while to start maybe 7 seconds when it has been sitting there, But if I just started it and came back 10 mins later it would start right up.
I changed the fuel filter, air filter spark plugs. Problem remains. I took it to the auto shop they tested the battery and said it was fine, But said the alternator is on it's way out.
But I have been reading on here it may be the fuel regulator. So What do you guys think?
Once it starts it drives perfectly.
I changed the fuel filter, air filter spark plugs. Problem remains. I took it to the auto shop they tested the battery and said it was fine, But said the alternator is on it's way out.
But I have been reading on here it may be the fuel regulator. So What do you guys think?
Once it starts it drives perfectly.
Last edited by mg0698; 06-08-2013 at 03:25 PM.
#24
Hey guys I have a 2000 Volvo s40 it takes a while to start maybe 7 seconds when it has been sitting there, But if I just started it and came back 10 mins later it would start right up.
I changed the fuel filter, air filter spark plugs. Problem remains. I took it to the auto shop they tested the battery and said it was fine, But said the alternator is on it's way out.
But I have been reading on here it may be the fuel regulator. So What do you guys think?
Once it starts it drives perfectly.
I changed the fuel filter, air filter spark plugs. Problem remains. I took it to the auto shop they tested the battery and said it was fine, But said the alternator is on it's way out.
But I have been reading on here it may be the fuel regulator. So What do you guys think?
Once it starts it drives perfectly.
Sounds like the same problem as my 00 S40. Does yours jump while idling sometimes? I'll be replacing the FPR tomorrow on the condition that my local junkyard has one in stock. I'll report back.
#25
#26
#29
Can someone post a link to purchase that S-Shaped Vacuum hose here in the USA? The part I bought did not come with it (although it showed it online connected to the FPR when I bought it), and seems silly to me not to replace that part after spending $125 for the new FPR. Cannot find it anywhere.
Link to part: BWD 24114 - Fuel Pressure Regulator | O'Reilly Auto Parts
Link to part: BWD 24114 - Fuel Pressure Regulator | O'Reilly Auto Parts
#30
What is the hose next to the Fuel Pressure Regulator?
I was checking out my fuel pressure regulator (which I think needs to be replaced). I found that the long black hose (which is vertical and to the immediate right of the FPR in the Hudini's picture) isn't solidly connected to anything. It slips into a hole right below the FPR but one can pull it easily. What is this hose and is it supposed to be solidly connected? I can't find it identified anywhere. Thanks in advance.
Followup: As long as someone knowledgeable is responding, can you also tell me what the hose is that is to left of FPR in the picture (it's hard to see).
Followup: As long as someone knowledgeable is responding, can you also tell me what the hose is that is to left of FPR in the picture (it's hard to see).
Stole this from Andy. The red circle is where the fuel line connects to the fuel pressure regulator. The FPR is the black plastic piece that is held to the end of the fuel rail by one bolt. The rubber elbow connects to the vacuum source and is just out of the picture below the FPR. As said above, this is covered with a black plastic piece.
Attachment 24149
Attachment 24149
Last edited by pmondrian67; 09-11-2017 at 08:19 PM. Reason: additional question.
#31
The little hose directly to the left and below is the elbow piece.
https://www.ipdusa.com/products/1036...nedcar-s40-v40
Slips over on both ends. If that's not the hose you are referring to please snap a pic pointing at it.
https://www.ipdusa.com/products/1036...nedcar-s40-v40
Slips over on both ends. If that's not the hose you are referring to please snap a pic pointing at it.
#32
Thanks, but that's not the one. I took two pictures, showing the hose in and out (there's nothing holding it in except for gravity -- the car runs fine once it starts). This is just to the right of the fuel pressure regulator, that you can see on the left.
mystery hose next to FPR
hose removed. should there be a connector securing it? I can just pull it out.
mystery hose next to FPR
hose removed. should there be a connector securing it? I can just pull it out.
#35
That is the infamous brake vacuum hose. I say infamous because it has a check valve at the other end and when the check valve fails you get crappy breaking for the first minute or two when driving in cold weather. It should snap back into place with a plastic ring that is either green or red.
#37
thank you both!
Separately, I'm now waiting for a multispline screw extractor to arrive in the mail. Whomever installed the old FPR appears to have stripped the screw. It appears to be a hex screw, but none of my hex bits fit into it (not a 4mm, 4.5 mm, or 5mm. Even the standard sizes don't fit). Someone posted that it should be a T20 or T25 but that's not what I have on my 2001 S40.
Separately, I'm now waiting for a multispline screw extractor to arrive in the mail. Whomever installed the old FPR appears to have stripped the screw. It appears to be a hex screw, but none of my hex bits fit into it (not a 4mm, 4.5 mm, or 5mm. Even the standard sizes don't fit). Someone posted that it should be a T20 or T25 but that's not what I have on my 2001 S40.
#38
You could also try taking your idle control valve out and cleaning it with brake cleaner to see if that makes a difference. That solved my long crank issues. Cheap, easy, low risk.
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