Fuel Pressure Regulator
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Freshman User
Joined: Feb 2010
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Fuel Pressure Regulator
Iv heard alot of guy talking about cleaning there Fuel Pressure Regulator Screens while there replacing there fuel filters. I recently just replaced my fuel filter and it was DIRTY. I wanted to try it but was a little uneasy about doing it. Im mechanically inclined on gasoline engines, but im brand new to the diesel world and have no idea how fragile things are. My plan is to take the fuel filter back off and try to clean the sediment out of the bottom of the fuel bowl, which is pretty easy to do, but while im in there i would like to try and clean the FPR screen because i know its probably dirty considering the condition the filter was in. So my question is whats involved in removing the regulator to get to the screen and are there ANY precautions i need to know before i do this. This is my only vehicle so i have to be cautious.
I also would like to degrease the entire engine, especially the valley of the engine were the fuel bowl goes, its pretty dirty down there. Is there anything i have to be cautious about when spraying degreaser and water down there or anywhere else on the engine. Any suggestions on good engine degresers.
I also would like to degrease the entire engine, especially the valley of the engine were the fuel bowl goes, its pretty dirty down there. Is there anything i have to be cautious about when spraying degreaser and water down there or anywhere else on the engine. Any suggestions on good engine degresers.
Senior User
Joined: Sep 2006
Posts: 247
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From: NC
The FPR is pretty straight forward to taking it off. If you only want to get to the screen, take the two front fuel lines loose and remove the two bolts that holds the FPR to the fuel bowl out. You will then have enough room to pull the FPR out away from the bowl and remove the screen.
As far as cleaning the valley, I would suggest degreaser and rags. Be carefull with the water(especially high pressure) down there because there are electrical connections down there.
As far as cleaning the valley, I would suggest degreaser and rags. Be carefull with the water(especially high pressure) down there because there are electrical connections down there.
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Freshman User
Joined: Feb 2010
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Thanks for the feedback, ya i dont know why some people would take a pressure washer to there engines, a little to risky for my taste. My plane was to spray the valley with degreaser, let it sit for 5 min and then take a steady stream of water to it to flush all the crap thats laying down there and of coarse repeat it to get it nice and clean.
As far as removing the FPR, when i take the screws out and start to separate it from the fuel bowl, is there going to be any surprises waiting there for me, like a spring thats may go flying or little parts that can be easily dropped.
As far as removing the FPR, when i take the screws out and start to separate it from the fuel bowl, is there going to be any surprises waiting there for me, like a spring thats may go flying or little parts that can be easily dropped.
Posting Guru
Joined: Mar 2008
Posts: 1,669
Likes: 1
From: Billerica, MA
If I remember correctly there is a little ball in there that a lot of people tend to lose down in the valley. But if your taking the bowl out you can do it on the bench and should be golden. The only spring that I know of in the regulator is behind the bronze nut on the side of it. There is a spring (not under much tension) and a slide, this is what controls your fuel pressure and this is what is modded when you see someone talking about shimming the FPR. When you put it all back together you should take a reading off the schrader valve and it should be in the 55-70 psi range. If it is low you can take that bronze nut off and take the slide and spring out and take a BB from a BB gun and drop it inside the slide, then put the spring ontop of it and reassemble the FPR. Be sure the spring sets on the little tit on the bronze nut when screwing it back in. Then rest test the pressure, it shouldn't be higher than 75-80 psi.
Postmaster
Joined: Jun 2007
Posts: 2,795
Likes: 1
From: Rogue River, OR
There really is no need to remove the fuel filter to clean the bottom of the unit or the screen. Remover the stand pipe:
(LEFT HAND THREAD) disconnect the wire to the heater and remove the innards. Open the fuel filter drain while using brake cleaner or something similar to clean it out.
As far as the FPR screen, there is a hole located on the right side of the fuel bowl (Driver's side) about an inch or so down from the top. Take a Q-tip, remove the cotton and GENTLY scrape the crud away from the screen.
Viola, you have just cleaned the entire fuel bowl.
Everything that is suggested above you would have had to do if you remover the bowl anyway.
If you do decide to wash your engine do it either COLD or just WARM.
DO NOT wash it while it is HOT and as suggested prior..................
NO PRESSURE and avoid any and all electrical connections. Probably nothing would happen if they get overly wet but who needs the added headaches?
Hope this helps.
Rog
(LEFT HAND THREAD) disconnect the wire to the heater and remove the innards. Open the fuel filter drain while using brake cleaner or something similar to clean it out.
As far as the FPR screen, there is a hole located on the right side of the fuel bowl (Driver's side) about an inch or so down from the top. Take a Q-tip, remove the cotton and GENTLY scrape the crud away from the screen.
Viola, you have just cleaned the entire fuel bowl.
Everything that is suggested above you would have had to do if you remover the bowl anyway.
If you do decide to wash your engine do it either COLD or just WARM.
DO NOT wash it while it is HOT and as suggested prior..................
NO PRESSURE and avoid any and all electrical connections. Probably nothing would happen if they get overly wet but who needs the added headaches?
Hope this helps.
Rog
FOREIGN GURU
Joined: Jul 2006
Posts: 7,655
Likes: 7
From: Celaya, Gto. MX
There really is no need to remove the fuel filter to clean the bottom of the unit or the screen. Remover the stand pipe:
(LEFT HAND THREAD) disconnect the wire to the heater and remove the innards. Open the fuel filter drain while using brake cleaner or something similar to clean it out.
As far as the FPR screen, there is a hole located on the right side of the fuel bowl (Driver's side) about an inch or so down from the top. Take a Q-tip, remove the cotton and GENTLY scrape the crud away from the screen.
Viola, you have just cleaned the entire fuel bowl.
Everything that is suggested above you would have had to do if you remover the bowl anyway.
If you do decide to wash your engine do it either COLD or just WARM.
DO NOT wash it while it is HOT and as suggested prior..................
NO PRESSURE and avoid any and all electrical connections. Probably nothing would happen if they get overly wet but who needs the added headaches?
Hope this helps.
Rog
(LEFT HAND THREAD) disconnect the wire to the heater and remove the innards. Open the fuel filter drain while using brake cleaner or something similar to clean it out.
As far as the FPR screen, there is a hole located on the right side of the fuel bowl (Driver's side) about an inch or so down from the top. Take a Q-tip, remove the cotton and GENTLY scrape the crud away from the screen.
Viola, you have just cleaned the entire fuel bowl.
Everything that is suggested above you would have had to do if you remover the bowl anyway.
If you do decide to wash your engine do it either COLD or just WARM.
DO NOT wash it while it is HOT and as suggested prior..................
NO PRESSURE and avoid any and all electrical connections. Probably nothing would happen if they get overly wet but who needs the added headaches?
Hope this helps.
Rog
Hotshot
Joined: Jul 2003
Posts: 12,177
Likes: 40
From: Newport, WA
So for clarification- no need to remove the FPR to clean the screen? I had a rough go of a "quick and easy" oil/filter and fuel filter change last night and forgot all about the dang screen.
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FOREIGN GURU
Joined: Jul 2006
Posts: 7,655
Likes: 7
From: Celaya, Gto. MX
Yeap, no need to remove the FPR to clean de screen. I have done throught the hole in the upper and lateral part (drivers side) of the fuel bowl and then few time later, I had to remove the bowl for other reason and also remove the FPR from the bowl and the screen was clean.
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Hotshot
Joined: Jul 2003
Posts: 12,177
Likes: 40
From: Newport, WA
I scraped it out last night from inside the bowl, got quite a pile of crud out. Truck seems to be running much better with a new filter and clean FPR screen. Now to get the intake changed over to a 6637 style and get a few other things done.
Hotshot
Joined: Jul 2003
Posts: 12,177
Likes: 40
From: Newport, WA
I need to start finding new ways to get stuff... wifey wants to start on house projects again so my truck budget just got taken away 
New User
Joined: Oct 2011
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FPR screen
The FPR is pretty straight forward to taking it off. If you only want to get to the screen, take the two front fuel lines loose and remove the two bolts that holds the FPR to the fuel bowl out. You will then have enough room to pull the FPR out away from the bowl and remove the screen.
As far as cleaning the valley, I would suggest degreaser and rags. Be carefull with the water(especially high pressure) down there because there are electrical connections down there.
As far as cleaning the valley, I would suggest degreaser and rags. Be carefull with the water(especially high pressure) down there because there are electrical connections down there.
Im a newbee when it comes to diesel trucks so bear with me. I seem to have lost the FPR screen while taking it off. Is there a replacement?Or can I make one up?Thank you---Erik
FOREIGN GURU
Joined: Jul 2006
Posts: 7,655
Likes: 7
From: Celaya, Gto. MX
First af all, welcome to the FTE forum.
Here are some numbers for you:
Ford part number 2C3Z-9157-AA seal kit. IH 1825748C92 Fuel bowl return screen, check ball and o rings. (94.5-95 also)
Here are some numbers for you:
Ford part number 2C3Z-9157-AA seal kit. IH 1825748C92 Fuel bowl return screen, check ball and o rings. (94.5-95 also)