Lb7 fpr shim. It's a pain to get to. A truck experiencing...

Lb7 fpr shim. It's a pain to get to. A truck experiencing hard starts, injector knocking or smoking may need a fuel pressure Hi All, I have a surge at idle every 4 to 5 seconds and from what I've been reading, it sounds like the fuel pressure regulator is going out. my truck is still under 1999 - 2003 7. I used the #4 washer method, used in this link What causes high fuel rail pressure on lb7? 1) Open or poor connections at the MPROP (FPR) connector-pigtail or main engine harness connector will cause loss of pressure control, maximum rail He then changed FPR and still, no start. 3L Power Stroke Diesel - fpr shim mod - has anyone done a write up on this mod with pics. 3L Power Stroke Diesel - FPR shimming - Just trying to figure out if I need to shim the FPR on my 01. Truck i've seen a couple lb7 trucks listing they have an lbz cp3 for it's higher press. First what type of benifits can i gain from the fpr shim mod? (i have a 10k mod already done. So I shimmed the FPRV on my LB7. 3L Power Stroke Diesel - FPR Shim - Tonight, despite freezing tempartures, i decided to shim my FPR. is this a direct swap ? my stock pump is having trouble keeping up and a friend works at the local dealer. You can run an LBZ FPR, and it will allow more rail pressure, but you will have to retune it for the LBZ FPR to run correctly. Bottle tested it, then added the shim. Here is a short video showing you how to install a Fuel Pressure Regulator in a 2003 GMC Duramax LB7. It's only sold as part of the fuel rail junction block. 3L Power Stroke Diesel - fpr shim and air cleaner mod - okay two questions. However, there are modified ones available on the market. I read the instructions and i have a few questions. 00 Do you guys have to have a lift pump in order to do a modded fuel rail or is it just for the LB7? I'm going to do a FPR shim and a EGR block off plate this weekend. 5-2009. PPE Boost Valve (LB7) 03 Cobra - bolt ons 490rwhp 489rwtq (tunned by kieth @ az dyno chip) 61 f-100 unibody 390fe 55 f-100 rust bucket No its all good. This is likely due to the sheer size of the components of this relief valve plus the continual flow of system return fuel across the end Well this is the elusive LB seven fuel pressure relief valve. IT . And after a little searching/reading. Still not right. Tried replacing the fpr but ended up learning a hard lesson about using crappy knockoff how can you diagnose a bad cp3? are there any certain signs to look for? how can you diagnose a bad cp3? are there any certain signs to look for? FPR SHIM MOD Jump to Latest 2. Please consider creating a new thread. Took it to chev dealer & said #1 injector was low but in spec so they replaced it. LB7 does not suffer the same way as the LLY when the rail pressure gets jacked up. The FPRV shim is a little of a PITA but cost less than $1. Shop at DmaxStore General Motors Duramax Diesel - LB7 Fuel System Diagnostics High Pressure Testing (LB7 Example) Before starting, it is important to note Shim your LB7 rails? I haven't done it to mine and it holds rail pressure just fine. applies to all 2001-2010 DURAMAX's, LML's are unknown to this testing. My truck held over 26,000, so I never did. Tomac has his shimmed. I will be installing the 203 degree thermostat with coolant Shim kit is on the bench waiting to be installed on my LBZ. Post Reply Home Forums GM Diesel Engines Duramax First Shim it. EFIlive is the best way to log the pressure reduction if the FPRV is popping, it likely is. I need to shim my relief valve asap, long story, but I need 1994. Very little loss of power noticed. It has a bit more pep and more I need some help on my 02 LB7 I just had new injectors installed and new fuel filter and new LBZ CP3 with modded fpr and my rail pressure is 9800 psi and drops to 600 psi when going to wot? I dropped This is an older thread, you may not receive a response, and could be reviving an old thread. Good I should note that the LB7 has really not been prone to facing this issue. It was a pain in the ass to get to. It's burried under lot's of stuff. It has a lbz engine. I have my fuel bowl out right now while i am replacing rubber lines just wondering if i should 1994. Found a good write up on how to do it and went for it. IDK about actual psi (no gauges), but I heard 07' Chevy Silverado LT3 ccsb LBZ. if so can somone give me a link to it Shop PPE Release Valve Shim Kit 113072000 for the 2004. The lbz and lmm already had facory pressure of 26,000+ so the earlier two needed help with shims. Okay I've hit the search button, looked around, and gotten confused. 2K views 7 replies 7 participants last post by AFBLUE Jan 27, 2009 Stroken7. I am getting p087 code- low rail pressure. I easily found the DIY for the injector swap, but haven't found a 01 lb7 8" lift, ECLB, 37" tires, Warn bumper, 5" exhaust into a single stack, Cold air intake, ported Fuel rail, boost valve, EFI Live DSP2 (MPG and HOLY S***), 1 very angry transmission, insight CTS, FPR shim? So i have read about people shimming the FPR but i have no idea what they are talking about. May not need it but I've been known to throw a low rail code occasionally and I already rebuilt the F2F head. 1994. LOL So while camping in SW Florida this year for the Winter, I thought about swapping the LB7 FPR on my 03 and running the LBZ FRP while I was installing a OEM LBZ Air Intake & HSP 3. 6L LB7, LLY, LBZ, LMM, LML & L5P trucks. 5-10 Cummins: Shims - Amazon. You get the Watch how we test a faulty fprv on an 01-04 LB7 Duramax. Introduction: This guide will demonstrate the procedures to install the LBZ/LLY fuel pressure regulator in the LB7 duramax. My '05 LLY has had a starter issue since I bought it 3 years ago. 3L Power Stroke Diesel - FPR Shim Mod, before and After pic's - Here are the results from Mod #2, FPR Shim. What do you know Just out of curiosity, hypothetically if one was (could?) install a FPR from a LB7 onto a LLY what would happen? Also would anyone know how to tell the difference between the two? You shim the FPRV, or the Fuel Pressure Relief Valve. It would be nice if the springs were sold to replace, rather than a shim bandage. One, when I release pressure from the schrader valve will diesel spray out? Two, after I shim the fpr When I put the truck in reverse, most of the time but not always the line under the "r" flashes and range shift inhibited shows up on the dic. I have been told by several members that there is a shim mod for the LB7, but I can only find FPRV shim mods for LLY and newer. Ive read the how to's and they all say to use Accurate fuel pressure is vital to your trucks power, efficiency and longevity. 3L Power Stroke Diesel - FPR Shim - What to use? - Im guna get down to business with the truck this week, doin the FPR shims on the list. Twice now, it has shifted erratically like it's not sure How do you know if it pops? Fuel rail pressure will fall off, and most likely will not come back up untill you allow the truck to come back to an idle, or maybe even sut it off and restart it. The FPR you are referring to is on the cp3 correct. It seems if the spring grows weak over time/temp, then the same will happen eventually after shimming. The location of the FPRV is located on the fuel No. I've read it's not too hard to change, just labor intensive. The FPRV shim isn't worth it on the LB7. Feel free to ask questions!Disclaimer - Some informatio Just as the header reads, I have had the surge for far too long and am gathering the parts for the replacements of the FPR & Injectors. It's located in the fuel block. I would not crack the injector lines loose on the injectors because even cracking them will cause rust to drop into the injector. Checked fuel rail pressure and it was under 250PSI. The time taken to accomplish this was What is the purpose of the fuel rail shim kit? What does it help/prevent? What are the benefits of doing this mod? Thanks in advance! My Edge on level 2 was enough to open the FPRV. The shim mod is to stop the 1093 limp mode on the LLY under heavy fuel demand. This kit includes not only the FPR to correct your issue, but all of the gaskets, seals and bolts 1999 - 2003 7. Anyone that has a write up or can give me some help I This valve often referred to as FPRV is located in the rear of the driver’s side fuel rail on the LLY, LBZ, and LMM, and is buried in the valley on the LB7 and functions much like the Temp and Pressure The lb7 motor as a FPRV just like the lly and lbz motors, except its in a harder to get to location and most of the time its not needed anyway. Then she'll fire right up on the second try. Can the regulated gauge be done on the OBS trucks and were do I'm gonna do this mod later in the week. It drives me nuts to hear people say their balance FPR Shim Mod Works But It could have gone way wrong. Every so often when trying to start, the starter grinds as though not fully engaging the flywheel. :thumb I didnt even know that you could shim the LB7's until reading your thread. 4inch superlift 285/75/16 BFG ATs Banks intercooler, 3. 5-2010 Duramax LLY LBZ LMM, Dodge 2007. 6 liter Duramax engine. com FREE DELIVERY possible on eligible In the middle of doing my FPR and this line seems to be in the way of the head of my ratchet, does it have to come out? I have not taken out the thermostat housing or anything. I told him to pull glow I have a 2007 chevy 3500 classic. With new FPR, shim and lift pump no fueling issues anymore. 3 Discussion starter I would like to do the Fpr shim and have read about the BB shim, the kit that can be purchased, and the regulated gauge. Just the intake, ac Also looks like your FPR is on the way out as well, is your truck surging at idle? How many miles on the injectors? I did not see the balance rates on them! The only other test would be a return rate test, to FPR are not the cheapest, but I would put a new one on the new CP3 anyways so you are not really wasting money. I was told to consider putting a LBZ pump in my LB7 for increased performance needs. First I'd like to thank Tim at Midwest, and &^%$, as well as *&&^%$, and #@$%^ too for all their help. We cant shim it we have LB7 motors so we either have to replace it or tune around it. I apologiz The lb7 and lly's needed because they would pop when rail pressure of much over 24,000 was created. I'm curious about the fuel rail mod, I have I know a couple people have plugged theirs to hold better rail pressure. Doing a search finds lots of ideas how and an occasional warning that this is a mod Installing a fuel pressure regulator on an LB7 1 reading Jump to Latest 28K views 12 replies 7 participants last post by Tolliwacker Feb 16, 2007 I bet you can hit 26k with the lb7 regulator, I havent tried it yet tho. Pat may have some or Wicked diesel. 6L Duramax LLY/LBZ/LMM . Fits: 2001 thru 2004 Chevy Silverado/GMC Sierra 2500HD/3500HD LB7 Duramax Diesel Fix your failing fuel system with this Genuine Bosch Fuel Rail Pressure A common problem we see with the LB7 is a surging or lopey idle. LB7, LLY, LBZ, LMM. Symptoms were hard/no start, long crank time, white smoke. It's so special that the dealer wants about $700 for it. Some of the helpers wish to remain anonymous as they are Fits: 2004. 5" intake horn Description A common problem we see with the LB7 is a surging or lopey idle. Does this work on an '01 LB7? I am changing the head gaskets right now, and while I am in there figured My name is Dan, I drive a 2005 2500hd ccsb lly 4x4, victory red, Efi live :gearjamin Robs trans safe tunes, Edge cts w/pyro, Silverline 5" exhaust, Magnaflow downpipe, LML ds manifold, Arp Fix pinion angles with WFO axle shims for 2001-2019 Chevy Silverado/GMC Sierra 6. I hope those of you who do the FPR BB shim mod get the same results I did without making the same bonehead mistakes I did. Buy PPE - Fuel Release Valve Shim Kit 113072000 Compatible with GM 2004. And some people have had the rail pressure safety valve, like a rail pressure blow off valve, open at 24500, some 25000+, we dont have I love the FPR shim mod, when running the 10k it smooths out the jumps and jerks for really good driving manners, and the 5. 5 inch exhaust Warn 12,000 lbs winch Temp, pyro, boost piller guages Banks Trans chip Mag-hytec diff and trans pans Since ive owned it: FPR 1994. I went over to his house with my CTS and checked codes, only had one for intake heater. A new OEM Bosch fuel pressure regulator will repair this problem GM Part Number #97728979 The FPRV shim isn't worth it on the LB7. It's been a hot minute but we're back! Here I show you how to replace a fuel pressure regulator on a 6. 5 Thru 2010 Chevy Silverado/GMC Sierra 2500HD/3500HD LLY/LBZ/LMM Duramax Diesel The high performance race fuel valve was Proper way to check balance rates. I've found I’ve been chasing a p0087 code in this truck since I first bought it. Thats I saw on PPE's site that the shim kit for the fuel pressure regulator is for 2004. Didn't have a problem until the FPR went out. Can anyone point me in the right direction to get IN THIS VIDEO I WILL BE SHOWING YOU THAT YOU DO NOT NEED CUSTOM WELDED TOOLS OR ANYTHING CRAZY TO REMOVE YOUR LB7'S FPR. 8" Bulletproof lift kit (junk), Fox shocks, EFI Live by Kory, Edge CTS Insight, 4" Silverline downpipe can you use a lbz FPR on a lb7? is there a shim kit for the lb7 FPR and is this part on the cp3. 5-2010 GM 6. 3L Power Stroke Diesel - adding fpr shim? - After reading of positive effects of doing the fpr shim I am game to try it on my rig. So now the truck feels totally different. 6k is like the 10k without it:thumb:. XDP carries all the parts and accessories you need Do they make one for a LB7? Will the LBZ/LMM/LLY race valve/shim kit work with the LB7? I've searched and read but didn't find anything. 3L Power Stroke Diesel - My fpr shim results - Put a bb in and went from 45 psi w/new pump to 64 psi w/bb,pinching the fuel tester hose really takes the wobble out of gauge to zero results 1994. (same thing as shimming FPRV on lly/lbz) what i was wondering is why does gm have the fprv and banjo bolt in the first place?? if it 1994. 2002 LB7 D/A 2WD. ) second what are 2005 CCSB Silverado 2500 HD LLY Performance: LBZ Mac performance intake, LBZ mouthpiece, MBRP duals, shim kit, ported fuel rail fittings, headstuds, FASS150, FASS fuel filter delete bowl, LBZ You can shim it, but normally not necessary on the LB7. Did you replace the FPR that is physically mounted on the CP3, or the FPR valve that folks add shims to to help in leaking fuel rails? Here is a pic of the FPRV, to Okay guys I have searched and I know it's here somewhere but have not found it , what fpr do you use when putting a lbz cp3 in a lb7 truck ?? Built motor , duel fuelers , 60's overs , gtx4202r SaveShare Like Sort by Oldest first ecc_33 1892 posts · Joined 2005 #2 ·Oct 29, 2006 i dont think you need to shim the lb7's 02 chevy, extra cab long bedThanks:Crank it up diesel, Super Diesel, SoCal RIDEZ: 01 chevy 2500 DURAMAX 4X4- PPE Stand. 5inch ehx. And yes, it's early, but I ran her into town, back and forth 20 miles and she It's a LLY mod. 5 - 1997 7.


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