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Lb7 bad ficm symptoms?

Lb7 bad ficm symptoms?

5 LB7 Duramax Powertrain FICM is bad, any connection to my Quad S2?. Checked codes (P0207 & P2146), cleared codes and tried moving #7 injector and FICM wiring with no problems found with engine running 03 Chevy 3500 Crew Cab Dually LB7-Banks Monster Exhaust (single),Big Head,Speed Loader,Six-Gun Tuner,DynaFact Gauge Assembly,Ram Air Intake w/Scoop,Exhaust Brake-Transfer Flow 58/60 gal In most cases when the FICM logic board is bad, there would be injector "circuit" codes as well as contribution. If you are at a stop light or somewhere where the engine is warmed up. Pop the hood and squeeze the drivers side radiator hose. If you are at a stop light or somewhere where the engine is warmed up. Make sure it's fresh. As a result the effects of this become obvious and will alert you to the growing issue. PCM B Fuse keeps blowing. Generally when the FICM starts to go bad it starts to struggle to supply power to the fuel injectors. In no particular order: 1 Richer than normal diesel smell in exhaust 3. Truck has a no/rough cold start and bad idle until it warms up. Open circuit faults, random injector. It is caused by either a failing ECM or a voltage issue. The harness is tied down with a zip tie, gets cut and shorts by contact with the sharp corner of the FICM bracket. The 4 injectors you are having problems with are all powered together on the same circuit, and any problem in that circuit and the FICM shuts down those 4 injectors. This all started mid Dec 2019. Have changed those 4 injectors, inspected wiring harness and all plug connectors. Something the installing dealer should cover5 LLY SC 2wd Seal the opening around the nozzle at the fuel fill tube. If not come back and let us know. Establishing a positive payment history on a new cre. Feb 2, 2014 · 2004 2500HD LT 4x4 LB7, Allison, 190,000 miles Ported intake horn, 4" MBRP with straight through muffler, Aimsoil since first oil change, 2 new Extreme X2 batteries, Nicktane adapter with the 3 micron Donaldson secondary fuel filter, Racor 500 marine primary fuel filter, 80watt ld. When they do fail it's typical to be a soft fail where it doesn't blow up, short or discharge it's electrolyte. When it is warmed Up, if I shut it down and crank it back immediatly, it will fire right Up like brand new. 2001-2004 GM Duramax LB7 6. It often seems like a safety mechanism when it happens. I doubt you will pinpoint the problem without using good diagnostic software and your laptop. Some of the specs are not included, but these are ones I feel unnecessary to post such as the torque for the hose clamps on the intake. Common problem with LLY engines. 2159 posts · Joined 2011 Not necessarily a bad pump. Repair the wires as necessary-- Best to isolate the harness with a short piece of heater hose. daytime driving, fog, and reverse lights :neener May 25, 2013 · The FICM monitors the status of the ignition voltage circuits and the fuel injector command circuits. This setup was very similar to the Ford 7 Voltage from the FICM actuates the injector solenoids. Generally, that means lenders view them as having poor credit. The ICP and IPR "chase" each other around and sometimes it stops at. Simple, test power, ground, and communication circuits and if they're all good, replace the FICM. Went online, ordered a new FICM from Ficmrepair 1 week later (today), installed the FICM, and suddenly. 6L (Fuel Injection Control Module) Repair. It can also affect your mood and overall well-being. Shipping calculated at checkout75/mo with. 6 and the ficm is trashed, are the ficms interchangable through the lb7, lly, and the lbz? If not I need to find one, truck also needs head gaskets as well. 0L Power Stroke Diesel - 2004 F250 6. Furthermore, it causes loss of power, rough idling, and overheating of the system, leading to poor fuel economy. FICM's do go bad quite often, but so do ECMs and TCMs. I checked for continuity through injector harness to all wires at injector plug. 0L Power Stroke Diesel - FICM symptoms/tests other than 48V check - I've reviewed a bunch of FICM posts but have only come across the one test which involves the voltage drop during cranking (from 48V). These are fed by the EDU fuse. 2011 Silverado 2500hd 6. Sep 26, 2013 · OP- you need to get a monitor for your truck, especially if you plan on diagnosing or repairing yourself. Probably around the fuel filter, water in fuel sensor, or maybe a fuel line S. NSBU Symptoms Thread starter BudTX; Start date Jan 6, 2010; Forums6 Technical LB7 has two connectors and LLY has one. Corrosion on the wiring harness and increased moisture are common causes of faulty ECMs. 6L; 1983-2000 GM Diesel 65L ; 2016+ Canyon/Colorado LWN 2. 2003 LB7 smokes at idle. The market is a little bloated right now and they're hard to get for under $1000 it seems. Plug and play - no programming required! NOTE: Before replacing a FICM for an injector related fault code check and make sure there is not an injector or injector related circuit fault. It is the power that is common to 4 injectors. The problem is i will crank it and it will only build up 200psi in the rails. Losing prime!!! I'm at my end with my cousins truck. 3510 posts · Joined 2011 After you get a new ford cps and icp sensor installed, you need to get a scanner on it for a buzz test, and further testing, unless you can find someone with an idm to lend you to check if that's the problem. Sent from my iPhone using AutoGuide 2004 ECSB straight pipe, SSDP tuning!!! 2004. Kinda want my truck back been down for 5 months please help. The Y-bridge sits in the valley and feeds boosted air into the Duramax's cylinder heads. FPR failure vs CP3 failure lb7 fpr vs cp3 failure Jump to Latest Follow 133K views 39 replies 20 participants last post by Rvn4me Feb 14, 2017 MattPark Discussion starter 97 posts · Joined 2009 #1 · Dec 14, 2009 basically its real simple, your connectors will slide all the way to the outside and you will feel when it is loose. this item is currently IN STOCK and can ship today under a 2 year warranty! LB7 Torque Specs. 5-2005 LLY Duramax FICM - Fuel Injection Control Module. 0 Powerstroke Bad FICM Cold Start Find many great new & used options and get the best deals for OEM Bosch 97720663 Lb7 (ficm) Fuel Injection Module GM 6. 6L LB7 Duramax problems and how to fix them LB7 Duramax Injectors. I believe this causes issues with the solenoid. Feb 15, 2015 · LB7 Code Thrower, bad FICM? I have been diagnosing a no run/ sometimes running rough condition with my LB7 which is mostly stock other than bolt ons. 2005 F-250 Lariat FX4 CC SB :thumb: Sinister EGR Delete Diamond Eye 5" Turbo Back Straight :evillol: OEM Gaskets and ARP Studs. Engine loses power, starts to clatter, shows codes, p0202, p0203, p0205, p0208, p1262. 16996 posts · Joined 2007 You can have a bad FICM even with the power board voltage good and the injectors buzzing. Generally when the FICM starts to go bad it starts to struggle to supply power to the fuel injectors. 6L LB7 Duramax Specifications without tow ratings! Find our LB7 Duramax towing capacity chart below! For more complete towing information, refer to your truck's owners manual. Anytime the lines are removed (such as when replacing injectors) the washers should be replaced to prevent fuel leaks. daytime driving, fog, and reverse lights :neener The FICM monitors the status of the ignition voltage circuits and the fuel injector command circuits. Anytime the lines are removed (such as when replacing injectors) the washers should be replaced to prevent fuel leaks. having trouble with a 2002 LB7/Allison. Help! Help! Help!!! So I drove my truck all over today, probably put about 40 miles on it and it was running great. com Apr 25, 2018 · The "Little Box" is the FICM- [fuel injection control module] Used on the LB7 and the LLY- later engines do not use this. When they are dealing w/ low voltages, they have to work harder. I've checked wiring, Jumped all power and grounds directly to the battery, along with Key switch voltage I've swapped Ecm's and athe FICM on the LB7 with test controllers and still nothing. Sometimes they fail and the caps are still good, so it looks like its running right (good voltage), but there's a solder failure or some other component failure on the logic board that's basically impossible for the DIYer to diagnose. The engine has been replaced recently. 23 new (both have an insane shipping fee. LB7 FICM Search but the FICM shows "open circuit" on 2,4,6,7 injector circuits. montgomery county jail inmates mugshots 2022 May have to peel tape back and check wiring So those codes are obviously all connected. Feb 15, 2015 · LB7 Code Thrower, bad FICM? I have been diagnosing a no run/ sometimes running rough condition with my LB7 which is mostly stock other than bolt ons. Cold Starts, Rough Starts No Start Dropping Fuel Mileage Running Poorly or "Missing" Power Loss when accelerating After cold / rough start, engine warms up may start/run normal until it cools back down Seems like it is running on less than 8 cylinders All injectors at once showing 'low circuit' codes Light color smoke with raw fuel exhaust smell Christopher. So i have pulled the harness apart around the alternator across the engine up tp the fuse box and to the ecm. "Low Voltage to Fuel Injection Control Module" it will not clear. I had to drive it for a while to get to the. Hello, so i have a 2004 Codes it throws is open injector circut and open injector. 0l bad FICM, runs rough low power when cold and blows black smoke 2001 Ford E350 7. Click here: LB7 Injector replacement instructions 2001 GMC Sierra 2500HD, CC,SB. Find options with low minimum credit scores, low interest, and high rewards inside. I can hook up the block heater and still long crank time, sometimes 8 to 10 second cranking time On a 6. Called the suppliers who also has a diesel repair shop and the stated they thought the lines to the FICM and filter head were reversed. LB7 Wet FICM No-Start Issue: Troubleshooting and P0650 Code. I'm being told my FICM is bad, but what other tests are. Nov 15, 2023 · The Fuel Injection Control Module (FICM) is an essential part of the 6 It is used to convert the 12-volt supply from the batteries into 48 volts to power the fuel injectors. In total, there are still around 1 million GMT-800 trucks still in service. NOTE: I had no codes no problems nothing before changing injectors other then the fuel in oil problem. The main challenge many people with bad credit face when applying for a credit card is having a limited number of good options. toro parts online canada The FPR is a brand new Bosch LB7 Fuel Pressure Regulator that I installed. 2001-04 Duramax 6. Unplug bottom electrical connector, unplug top electrical connector, remove the three bolts, move the two hose clamps on the two fuel hoses and remove the ficm ASE Certified, former GM Parts guy. P1262 ECM DETECTS A CIRCUIT FAULT RELATED TO THE HIGH VOLTAGE CIRCUIT TO CYLINDERS 2,3,5, AND 8. Replaced rubber fuel lines from housing to FICM - No fix Found could not attain and hold fuel pressure above 21k psi. Touch the positive lead to the pin on the FICM that is closest to the driver's side. Buy the switch from one our Forum Suppoerting vendors- [list at the bottom] or from Allison. I've replaced crankshaft position sensor. 8350 posts · Joined 2010 Yes, a bad fuel rail pressure sensor can tell the ECM that you need more fuel. Hi all, new here but not a new auto tech. Find mobile mechanics near you and schedule an engine electrical inspection. If air gets into the system it will cause a false/low reading. Go through all fuses and inspect your engine harness for any rub-through wire insulation, rodent damage, corrosion, loose/bent connector pins. During diagnosis, trouble codes P1223, P1226, P1229, P1232, P1235, P1238, P1241 or P1244 may be found. Got things fixed but the dealer was being hardcore about only covering the rental car for three. GM does sell a repair connector, but it is expensive $250. It is all about heat generation. Can I just swap the good one off the parts truck or do I need to reboot/tune it? Save Share Sort by Oldest first Oldest first Newest first Most reactions Durtynuby. Pick up another fuel cap for cheap at your local parts store as a replacement. One of the early signs of a failing FICM is difficulty starting the engine. Smoking black means it is getting way too much fuel. If the circuit tests normal, replace the ECM. jc1843. I have been having a problem with air in my fuel lines I finally figured out where it is coming from. Everyone who drives a gasoline-powered ca. restaurant hood cleaning oro valley az 7 Powerstroke turbo removal, it's not quite as bad as the 6. Worst you'd get would be a no start in cold weather. Usually bad modules are noticeable from multiple injector codes. Alright guys, I'm stumped. Jan 7, 2016 · Signs of a Bad ECM Check Engine Light Turns On. Additional information 64 oz 10 × 7 × 2 in. 6L Parts - Fuel Systems | Injectors, Pumps, & Lift Pumps | 2001-2004 Chevy/GMC Duramax LB7 6. This is a repair and return service for your 2001-2005 GM Duramax Diesel LLY LBY LB7 Fuel Injection Module (FICM) 6 You need to ship your part (s) to us for service. Often times these go bad, it is generally the power supply, they are relatively easy to rebuild. Cleared codes again, started for a minute. Common problem with LLY engines. This has happened like 2-3 times over the past few WINTER months. 4" exhaust to 5" single stack,EDGE Insight CTS, EFI Live Moonshine tuned, Suncoast stage IV, Complete Kryptonite front end with PISK , 305/55/R20 Cooper Zeon's on Rockstars.

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