lb7 bottle test|duramax lb7 bottle test : purchaser I am wanting to do a bottle test on my 03 LB7. One to test the fuel pressure relief valve, and another to test the return rates on the injectors per bank. I have been searching a LOT and can't find the info on which lines to tap into. Resultado da 11 de jan. de 2024 · Aqui na APWin você tem o melhor palpite Southampton x Sheffield Wednesday para 13/01/2024. Leia e lucre com os nossos .
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I am wanting to do a bottle test on my 03 LB7. One to test the fuel pressure relief valve, and another to test the return rates on the injectors per bank. I have been searching a LOT and can't find the info on which lines to tap into. On a stock LB7 there is no way to do a bottle test to check the popoff. Then again how many have ever had a LB7 pop it open.
The test is called "Bottle Test"-- here is some info-- On the drivers side fuel rail-- to the back and next to the Turbo, you will see a "U" shaped 3/8 hose-- remove the hose from . The relief valve bottle test is what I'm wanting to do. I'm suspicious of the relief valve popping open and causing a 1093 code. Dealer diagnosed injectors but I have good .The test for a leaky valve is known as a “bottle test” and is relatively simple to do. The setup is illustrated below for the LLY, LBZ, LMM engines. Image 1 shows the hose that we are working .
Do the bottle test, there is (2) return lines on the drivers side by the fire wall. The smaller line is from the injectors/cp3 pump and the larger line is from the common fuel HP . The most simple way to test injectors is find someone with EFI Live or a tech 2 and read the balance rates.
I have been searching for 3 hours trying to find the bottle test and I am having no luck. I know that this has been posted a thousand times but can someone please send me the .
Watch how we test a faulty fprv on an 01-04 LB7 Duramax. Symptoms were hard/no start, long crank time, white smoke. Very little loss of power noticed. The “bottle test” is one way to ID which bank contains troublesome injectors, but the test (I believe) involves pulling valve covers to isolate the return line from each bank. . The LB7/LLY system runs on a max of 23k, but as the FPRV ages, it can dump fuel rail pressure below the 23k and affect the engine performance. Shimming the FPRV can increase the bleed-off back to 23k or more, and it will still bleed of high rail pressure in case of a fuel spike. . There is a test to check if the FPRV is bleeding off rail .
"Bottle Test" to check the FPRV. On the drivers side fuel rail-- to the back and next to the Turbo, you will see a "U" shaped 3/8 hose-- remove the hose from the fuel rail-- and plug the hose. Now attach a 3/8 hose to the fuel rail nipple, and stick the end in a bottle.
2001 LB7 Duramax crew cab long bed 4X4 245,000 Mile Truck 91,000 Mile Engine ATS on Level 2, PPE Boost valve, airbags and air horns, High Idle Mod, All headlight on mod, Power steering mod . Test Procedure The fuel flows . Thanks! 2004 Lb7. Search. Search titles only By: Search Advanced search . Search titles only By: Search . What do i need to test it by the alt? 2004 Lb7 . sweetdiesel That's better. Aug 6, 2006 10,390 0 0 52 Thailand. Mar 4, 2013 #5 fairladyaffair said: What do i need to test it by the alt? 2004 Lb7 The “bottle test” is one way to ID which bank contains troublesome injectors, but the test (I believe) involves pulling valve covers to isolate the return line from each bank. . Hmmmm, YouTube url won’t paste. Go to YouTube and put this into search: How to test lb7 injector return rates balance rates cp3 failure rail pressure relief .I should note that the LB7 has really not been prone to facing this issue. 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 of the valve assembly. The Diagnosis The test for a leaky valve is known as a “bottle test” and is relatively simple to do. The .
bottle test. Jump to Latest 21K views 11 replies 6 participants last post by Lescook Mar 17, 2015. baconstruction Discussion starter 410 posts
It wasn't allowing them to build the proper pressure for it to start. Had to start it with gum cutter sprayed down the intake every day. See if that works on his. But take the advice, do a bottle test on the fuel return line back by firewall on drivers side. Crank over for 15 seconds, and measure how much fuel it returned into bottle. Good luck!! So i did a return rate test today. Bottom line on bottle is 40 ml. Top line is the amount returned after 15 seconds of cranking. . i have a lb7 that im just finishing up doing all 8 injectors in get it to a shop and have the run diagnostic on it is really the best way to do it and if you have all 8 injectors done witch i would suggest as its . Chevy / GMC Duramax 01-04.5 LB7 Forums. 01-04.5 LB7 Duramax Powertrain. Bottle test question. Jump to Latest 1K views 0 . I looked at doing the bottle test. Is the u shaped hose suppost to be rubber? Cuz the one on my truck is metal.
I should note that the LB7 has really not been prone to facing this issue. 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 of the valve assembly. The Diagnosis The test for a leaky valve is known as a “bottle test” and is relatively simple to do. The .
Try a bottle test as well. Do a search for "lb7 bottle test". It is a test for the fuel pressure relief valve on the drivers side fuel rail. It's uncommon on the LB7 as compared to the later engine codes, but I wouldn't rule it out. A failed FPRV that's stuck open could cause a no start due to inability to sustain proper rail pressure because .
The bottle test is just removing the return line at the top/back of the engine and replacing it with a length into a bottle crank for 15 seconds and check to see how much fuel is in the bottle correct? I'm hoping it's not the cp3 or injectors, if it is that means I'm going to have to push it up the hill and then do a three point turn. 2004 LB7 cclb efi live by street 2 sand, dsp5, boost valve, m/a pump rub, FASS 150 lift pump, 3" MBRP downpipe, 4" Diamond eye straight pipe, s&b intake, autometer egr & boost gauges, BF Goodrich all terrain KO2. . If you search lb7 bottle test, that helps as well . Jim _____ 2003 Chevy 2500hd crew cab 4x4, D/A Just a few aftermarket goodies . 2003 LB7 Duramax 284k miles 45% over injectors 4" exhaust, banks ram air cold air intake ppe wastegate valve, and Airdog lift pump. . Maybe this weekend or next I’ll be able to do the bottle test for the CP3. Something I also did the other day was test cranking with my airdog plugged in and unplugged. Plugged in the truck will crank and run .
Return rates is the amount of fuel each injector returns to the tank during a 15 second cranking cycle, and involves a test set with 4 graduated cylinders to perform as well as some engine teardown to perform it. return rates are a much more accurate test of injector health since 01-10 DURAMAX injectors are a pressure differential valve. Went to start my 04 LB7 this morning to let it warm up before going to work. As I shut the door and walk away, the engine died. . If it started and then stopped im betting its not the filter head im betting you have 1 or more injectors stuck open.Id bottle test and see if you have a ton of fuel returning to the tank.Its a free test and you . Bottle Test. Jump to Latest . (LB7) Duramax Second Generation: 2004.5-2005 (LLY) 6.2L Diesel Engine Suspension & Steering - 2001 - 2010. Top Contributors this Month View All. mp06011999 275 Replies. torqueofthetown 124 Replies. cgfitch 90 .
The only other test would be a return rate test, to rule out bad injectors returning too much fuel. PS: I just replaced one in a truck though that had about the same Desired vs Actual Mpa's and it solved the problem. . By jstrese in forum Duramax LB7 Replies: 4 Last Post: September 18th, 2011, 10:19 AM. Proper Way to Dyno. By LBZoom in forum . Dropped a "built" LB7 in my '03 back in 2017. The build included upgraded rods, cams and studded heads. Shortly after install I had a slight pressure issue in my coolant system but was advised that it was normal. Here recently, I could top off my coolant reservoir, start the truck and 5 minutes later, The overflow would dump all the coolant out . Simon I belive we need a DIY LB7 shim thread to go along with the LLY and bottle test threads. You seem to have the DIY threads down to a science . 03 D-max Honorary "Tosser" Apr 29, 2008 3,539 0 36 Lowville NY. Apr 8, 2009 #12 sweetdiesel said: Sorry for the confusing post,If i had a pic it would prob help
lb7 diesel bottle test
2001 LB7 2500HD CC/SB 2WD Slower then a three wheeled Prius running on bio-diesel . 546hp & 1025 ft/lbs at Lone Star Dyno, Spring Branch Tx. Best Run: 13.23 @101 with 1.90 60 ' Save Share . yeah try the bottle test.. i was pulling up the same codes and my truck went into limp mode. I bought the shim kit from the dmax store and my truck runs .
2001 LB7 EC/LB 6" lift, 35" Pro Comp Xtreme All Terrains, K&N CAI, PPE boost valve, 5" exhaust out the side, Heavy duty tie rods, new engine . So bottle test, please define . 2005 LLY CC/SB 6" lift, 35" Nitto Mud Grapplers, Cognito dual shock hoops with fox rezzies on all corners, Cognito UCA's, MBRP Downpipe, 5 " exhaust straight piped, S&B . Have not had a chance to do bottle test. Actually havent even found a bottle test description yet. As far as the install of the injectors im pretty sure thats fine. This is my first lb7 injector job but not my first diesel work. Im actually in the process of a 6.7 powerstroke entire fuel system job right now at work. I will look for the bottle . Yes, there is a test to check if the FPRV is bleeding off rail pressure-- "Bottle Test" Remove the "U" hose from the back of the fuel rail- plug the hose. Attach a piece of hose to the fuel rail nipple and insert the hose in a bottle, now drive the truck hard with a few full throttle runs- if the FPRV bleeds off fuel into the bottle, the valve .
Just understand I AM NOT suggesting you bottle/bypass test even though this link is describing the process. What I'm saying is use this process to make sure the mechanical bits are working or ceiling correctly, and it truly is the pressure regulator that is failing you. General Motors Duramax Diesel - LB7 Fuel System Diagnostics
Overview of the LB7 Duramax Brief History and Significance The LB7 Duramax is a 6.6-liter turbo-diesel V8 engine introduced by General Motors in 2001. It was developed in collaboration with Isuzu, combining the expertise of both companies to create a robust and reliable engine for heavy-duty trucks. The LB7 marked a significant advancement in diesel .
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lb7 bottle test|duramax lb7 bottle test