Lly duramax glow plug symptoms. Sep 17, 2010 · Used that same set up on all 4.


  1. Lly duramax glow plug symptoms. Jul 30, 2016 · Recently I got a U0106 cel for glow plug control module. 6 turbo duramax, it developed a problem with the coolant being pumped out of the reservoir back in February 2022 I added bars leak head gasket repair it seemed to help and then I had more symptoms so I added another bottle and made it through the summer. Tighten Tighten the glow plug harness connector nut to 2 N·m (18 lb in). GM Duramax - 04. After reading lots of threads about horror stories of twisted off glow plugs, I decided to do some research. GET THE LATEST MERCH!https://nazty-nate. The easiest is to check your glow plugs before testing your glow plug control module. Here are a few signs to look for that might signal your glow plugs need to be replaced. 5-05 LLY Duramax Powertrain Glow Plug Module. Your dashboard will display this warning if the WIF sensor on the bottom of the fuel filter ever senses any water. Sep 25, 2023 · Worked fine for a day, then error light came back. Replacing failed glow plugs can eliminate check engine lights and hard starting. Jan 7, 2023 · Merchant Automotive Glow Plug Removal Tool Adapter and Socket - 2001-2016 GM Duramax - Merchant Automotive provides a Glow Plug Removal Tool Adapter and Socket designed for use with 2001-2016 GM Duramax engines. Dec 7, 2012 · My reference works says open or short in the #1 glow plug control circuit. 5+ trucks should not need more than 4 seconds to heat the glow plugs. I got my new glow plugs from o o o o'reileys and they do not come with a nut or washer. 5 Thru 2005 Chevy Silverado/GMC Sierra 2500HD/3500HD LB7/LLY/LBZ Duramax Diesel NGK glow plugs are built for quality and reliability. To test your glow plugs, simply connect a 12-volt test light to the positive battery terminal. •The glow plug wait lamp is ON for 1 second during cold start. Nov 24, 2021 · Buy 12639701 Diesel Glow Plugs 9G for Duramax LLY LML LMM Chevy&GMC LBZ LGH 6. Feb 22, 2021 · The glow plugs on a diesel engine will typically last around 100K miles, but they can fail before then. •The glow plug wait lamp may not illuminate during a warm engine start. To some extent, the Duramax team tries to convince the buyers that both engines are almost alike for their own benefit. 99. 6l and the glow plug indicator light is not coming on. Dec 14, 2010 · 04. Put one wire on each post of a battery. It may take several attempts at starting the vehicle before achieving ignition, depending on the outside temperature. Any help would be appreciated Feb 25, 2018 · •The glow plugs turn ON and heat up in 2 seconds and then are pulse-width modulated (PWM) for another 2 seconds. Does anyone have a wiring diagram from the PCM to the GP Module? Dec 31, 2013 · I had a #6 glow plug go bad on my 2004 LLY (P0676 DTC Code). However, the IAH was like 4. Duramax LLY Reliability Ultimately, despite the common problems we are going to discuss in-depth below, the LLY is still a very reliable engine and has proven capable of Replace the faulty Glow Plugs and restore proper operation in your 2004. GM Duramax. Aug 18, 2020 · The Duramax LLY engine suffers from problems with bent rods, blown head gaskets, EGR valve failure, glow plug failure, overheating, and fuel pressure relief valve failure. Oct 11, 2018 · Control of the instant start system (ISS) glow plugs is accomplished by a glow control module unit and 4. replaced the glow plug control modual, erased the code and and have been good since. checked it p0380. I suppose I could pull controller and swap relays but right now Im confused. 1. If the diagnostics for P0671-P0678 led to a glow plug resistance of more than 1 ohm, replace all of the glow plugs. These handle a lot of current, so are destined to fail. Jul 9, 2008 · Install the cylinder number 2 glow plug harness connector and nut. 5-05 LLY Duramax Powertrain. Glow plugs are one of the most important components when trying to start a diesel in cold weather. Used #8 for the nut to take the wire off then a #12 I think for the glow plug. Feb 14, 2022 · Replaced the glow plug controller reset the codes and same issue. Check for codes before you replace it though. I replaced mine with new nuts and washers, put some dielectric grease on the connector and some anti seize on the threads of the glow plug. 5-2005 LLY glow plug modules to go bad. Domestically made - Our LML, LLY, LMM, and LBZ Duramax glow GM Duramax - 2004. (Duramax "LLY" Model Diesel Motor). There are also many other possible causes for an excess of white smoke, including low engine cranking speed, low compression and air in the fuel system. Jump to Latest my glow plugs stopped working. This OE replacement is built to the same high quality standards as the original components that were installed on your truck from the factory. The second way is by removing the glow plug and getting 2 jumper leads or wires. put the postive wire on the end of the glow plug where the power wire connects. This was an advantage as it made servicing the injectors much easier and allowed ease when doing a visual inspection. I had done one on the odd side before with no problem. Mar 17, 2023 · 04. ramsdell_ Apr 10, 2024; 7 698 Oct 14, 2024. 5-05 LLY Duramax Powertrain Glow Plug Controller Problem. February 2015 I did my head gaskets, engine out of truck, head studs and grade C gaskets, the usual repairs for a head gasket repair, as well as the Modded Water Pump Jan 31, 2006 · 6. '16 Chev 2500HD LTZ Z71, CC, Duramax, Allsion, 4wd, new Sept 2016, has factory fifth wheel prep so added a Curt hitch. Sep 16, 2020 · In this video I will show you exactly how to find the bad glow plug and replace it! My truck was giving a P0673 code. When LLY and LBZ came face-to-face, some differences between them were glaring. It does matter what quality glow plug you install since it can heavily damage your engine. Welcome Guest. 6V. Attention LLY owners - many glow plugs being sold online for the LLY Duramax application are NOT the correct part. Apr 3, 2021 · Result: Glow plug controller was sending a signal to 1,3,5&7 glow plugs even after engine was started and warm. Jump to Latest 26K Threw a code yesterday po675 glow plug circ failure #5. Install the left charge air cooler inlet pipe. However upon removing the inner fender I see that the steering shaft is in the way. replaced the fuel filter twice, the fuel filter housing, and every fuel line and sending unit. One other change I forgot to past on. Turnpike. A glow plug is a heating element that is used to heat incoming fuel and air. Jun 5, 2009 · They replaced the glow plug controller, the glow plugs, broke a glow plug off and removed and reinstalled the head after repairing it. Replace the faulty Glow Plugs and restore proper operation in your 2006-2007 Chevy/GMC 6. But unfortunately, in colder weather, LLY glow plug failing is very common. 5L,( "F" Eng #141 cast block) NV4500, crewcab, dually,Diamond Eye 4" Turbo Back Exhaust w/2. Dec 28, 2018 · Needless to say the glow plugs do not heat up the engine cylinders for proper startup in cold weather. and somewhere between several trips back to the dealer, the fuel injectors went out and leaked diesel fuel out Fits: 2004. I then put it on my reader and getting 2 codes P0381 and P0650. The temperature and the power consumption is controlled between the engine control module (ECM) and the controller within a wide range to suit the engine's pre-heating If the diagnostics for P0671-P0678 led to a glow plug resistance of more than 1 ohm, replace all of the glow plugs. Consider our glow plug kits with new glow plugs and controller. Fits: 2004. It usually lasts for 0-5 seconds depending on the ambient temp. GM Duramax; 2001-2004 LB7 DURAMAX. The #30 fuse has not blown again (havent tried starting either). The factory glow plug controllers have been found to overcycle the glow plugs which could result in glow plug damage. Worn or inoperative glow plugs can cause a hard start or even check engine lights on today's newer trucks. While most are dimensionally correct and will physically fit, you will likely find yourself with a truck that starts harder than before you changed the glow plugs. Just because the check engine light isnt on doesnt mean there are no codes Even at -30*, 2004. It really fits the symptoms the Jun 18, 2023 · The most common lly duramax problems and their fixes are outlined concisely below. I was told the air heater is temperature dependant, I have my truck in a heated shop, set to 50 degrees. My glow plug light stays on for the wrong time period!Some glow plug controllers sense glow plug resistance. Glow plugs. 5-05 LLY Duramax - Engine - Glow Plugs and Related 920-361-7711 GM LLY Duramax Glow Plug (0) Reviews: Write first review. The difference between 61G and 9G is that the 9G is a newer version, I really doubt the engine will really care (mine doesn't) what's in there except that there's a glow plug that heats the cylinders. NGK constructs their premium Glow plugs with only the finest material which decreases corros Dec 29, 2010 · 03 gmc 2500hd duramax lb7, my batteries were low so i charged them then i started truck 6hours later and the check engine light came on. They are manufacturer to ensure fast ignition even at below freezing temperatures. The temperature and the power consumption is controlled between the engine control module (ECM) and the controller within a wide range to suit the engine's pre-heating Sep 18, 2020 · Yes, it definitely does. For the earlier glow plug, please see "related items" below. Sep 21, 2009 · The Truck: 06 Chevy LBZ CCSB DSP5 by Idaho Rob Coddens, EGR lost in boating accident, PVC to catch can, built trans by Duramax Tuner, MBRP 3" down to 4" straight exhaust, Max Flow headers/uppipes, S&B intake, Max Flow trans cooler, trans cooler line fix, PPE Deep oil pan, Deep trans pan, Edge Insight CTS with duel EGT probes, HIDs all around, Oversized tie rods and centerlink, toolbox w/built Jan 29, 2020 · Damaged glow plugs or a faulty glow plug control module can cause white smoke on engine start up. " Apr 10, 2013 · Glow Plug Controller Availability. Sep 17, 2010 · Used that same set up on all 4. Glow plugs were Oct 24, 2016 · A fast open glow plug is a plug with an internal open circuitry, with no visual damage to the tip of the plug. They are not that hard to change if you are looking to change them yourself. Then disconnect the wires from each of your glow plugs and touch the probe of the test light to the terminal of the glow plug itself (not the wiring harness). 6L LLY/LBZ Duramax. 2-3 volts depending on the temp, battery voltage, and glow plug resistance. When the tip of a glow plug enters the cylinder, engine damage may occur. Feb 1, 2023 · The revised LLY version, released in 2004, had externally-located fuel injectors. What happens is when the truck is cold the glow plug light does not turn off for at least 10 seconds and I am scared to wait longer because I know the tip can break off. Feb 11, 2008 · The first way is by checking the resistance of the glow plug with a DMM. Jan 23, 2006 · Diesel Engine Glow Plug Trouble Codes - keywords DTC GPCM hard P0671 P0672 P0673 P0674 P0675 P0676 P0677 P0678 SES start #PIP3586A - (Dec 16, 2005). Jan 13, 2017 · Control of the instant start system (ISS) glow plugs is accomplished by a glow control module unit and 4. And from what I remember the LLY plugs will only see the 4. 5-2005 LLY duramax diesel engine. All good. Premium Diesel Glow Plugs Made in the USA - For 2006 - 2016 LLY, LBZ, LMM, and LML Chevy / GMC Duramax -These glow plugs will NOT fit 2005 and earlier LLY Duramax - they only fit "second generation" (2006 and later) LLY's. But LB7 glow plugs are 12v Nov 30, 2011 · Dont know about the relays but on the glow plugs they say if you disconect the glow plugs and then take a test light and hook the test light to the positive side of the battery and then touch it to the end of the unhooked glow plug if the test light does not lite up it is bad and if it does light up it is good. Replacement was still covered under warranty because it is part of the 100000 coverage. A slow open glow plug is a plug that has internal open circuitry, and the tip of the plug is missing or damaged. Glow Plug Controller Problem. This is designed to help aid the combustion of fuel in a diesel engine especially during startup. Mechanic probed the larger "C2" connector and discovered the yellow wire's signal voltage was only 2. The LLY engine has a power rating of 360 horsepower, and the LBZ engine has a power rating of 310 horsepower. I know by the end of ten seconds the glow plugs have to be ready so I start the truck anyway and it starts fine. Some symptoms of the P0670 code include engine knocking when the engine is cold, a lack of power when the engine is cold, and a lit check engine light. Dec 4, 2013 · glow plug module is probably going bad. by 04. If you need any other information please just ask. 2005 LLY Duramax, 330,000KMS, HSP Intercooler Pipes, Stock Turbo, Stock Injectors, Head Studs, EFI by PPEI. 5-2005 Chevy/GMC 6. Includes: (1) GM Glow Plug, Part# 97326305; Replaces Part#: Jul 27, 2024 · 05' gmc 2500 6. Glow plugs were 12 volts until it kicked off, then 0 volts. . I checked all My grounds and checked my glow plug controller relay. Changed the 8 glow plugs but still nothing only has 150200 km on it. 5-2005 GM 6. Usually when somebody changes one glow plug they change all 8 of them. " 2015 Silverado 2500HD Z71 - AirDog II-4G DF-100 - CP4 to CP3 Conversion May 3, 2015 · This is synonymous with the glow plug light on the dashboard. 5 - 2005. The lly duramax engine is susceptible to glow plug failure, fuel injector failure, and egr valve issues. 75 volts and when the GPCM kicked off it went up to 5. 6L LLY Engine DTC U0106 Resets or Will Not Clear - kw diesel glow plug glowplug SES control module communication start wait light #PIP3010A - (Dec 17, 2004) 6. 6L, 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 Silverado, Savana, Sierra The GM 97326305 Glow Plug is a direct replacement for your 2004. 6L Duramax LLY. hope Aug 22, 2022 · This video will show you how to replace the glow plugs on the 2004-2005 6. The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in the PI. Looking back I do remember one day I started it, it missed and after that time the glow plugs started to go on the passenger side only. I don't understand this. Error code is U106, "Lost communication with Glow Plug Control Module". All debris must be removed from the cylinder. Right now Amazon offers the 9G for $21 each free Prime shipping 8 X $21 = $168 Jan 16, 2018 · When I connect main power wire from glow plugs to controller I turn on key and 0 volts, dont even get a microsecond of any kind of voltage. I tried several different angles but can't get a socket on it. Help! Dec 16, 2012 · 2004-2005 Duramax LLY 80042 (bosch plugs have the LLY engine code printed on them) LB7 and LLY glow plugs will physically interchange. then drops to 750 and is fine. LLY GLOW PLUG SET FITS 2004. 04 Symptoms of Bad Glow Plug Apr 28, 2022 · 1996 K3500 6. 75 volts. Hard Starting. 5 thru 2005 Chevy Silverado/GMC Sierra 2500HD/3500HD LLY Duramax Diesel. Description: Sep 6, 2022 · Faulty glow plugs, a malfunctioning glow plug control module, and circuit problems are some of the problems that could trigger the issue. The more miles an engine has on it, the more likely some components will need replacement. If a glow plug has failed an engine can struggle to start. It will illuminate when the glow plugs are active to warm up the engine in cold climates. Jun 15, 2010 · 06-07 LBZ & LLY Duramax Powertrain glow plug trouble. Tired of throwing money at this thing. Oct 25, 2011 · I would not buy this kind of stuff off of eBay especially glow plugs. Dec 12, 2020 · Glow Plug Failure. I checked the fuse link at the under hood fuse box and it shows power on both ends. Went thru both fuse boxes after finding and testing cam shaft sensor wires. I spoke with a friend who is a tech at a GM dealership and he confirmed that they twist off in the head "all the time. If one or more glow plugs fail, the combustion chamber won't have the necessary heat required to ignite the fuel. Replace the oil pressure sensor switch reset the codes and again the same issue. I had it plugged in and it said to reprogram the glow plug control module and the code will go away. Jan 8, 2013 · 6. My Account Contact Us. Glow plugs heat fuel and air to improve your engine’s combustion efficiency. In cold conditions, the combustion chamber may not reach the required After that, some electrical checks may be in order, but keep the glow plug controller at the top of your suspect list. When I picked it up (late afternoon, 90 deg and after the guy moved it) it took forever for the glow plug light to go off. Nov 15, 2013 · I have a 2004 GMC sierra 3500 pick up truck four-wheel-drive with the 6. That code is from the glow plug controller. So checking voltage at the plugs does no good. Many code readers will not read the codes from any modules except the ECM. Now, I am not sure how to do this. 5-2005 LLY VIN Code 2 - Engine - Glow Plugs & Misc. 5" Flo-Pro Crossover, AirDog II DF165 w/ tank sock,delete,TD-Max boost controller,OPS extension hose,Glow Plug Harness,Glowshift Maxtow gauges,Boost & Fuel Pressure Bolts,2/0 Battery Cable Upgrade,PMD Re-Location Kit, in bumper, Optilube Feb 6, 2017 · If it reads warmer than it actually is, then it won't command the plugs. Glow plugs go out from time to time it is a common occurrence. 920-361-7700. If any of the glow plug tips are missing, the cylinder head must be removed. Jul 30, 2013 · These glow plugs will NOT fit 2005 and earlier LLY Duramax - they only fit "second generation" (2006 and later) LLY's. Condition/Concern: Dec 4, 2013 · - Next, with the wire still removed from the IAH, I started the truck and checked the voltage at the GPCM for the glow plugs and IAH. Nowadays there are a lot of low quality cheap glow plugs or what can be worse fake copies of famous brands glow plugs. Jun 19, 2023 · Glow plugs in LLY Duramax fails due to wear and tear over time. 7V. Aug 10, 2015 · Truck Background. 6L LLY Duramax. I replaced the sensor, that code went away, but the one circuit code is still there. LLY Duramax Glow Plug failure is a common problem amongst late model year trucks. Its not unheard of for 2004. 7 volts for a split second, then drop back to 1. Sep 23, 2015 · Went to replace Glow Plug #4 as I got the dreaded check engine light and my OBD tool told me it was the reason. Connect the cylinder number 2 and cylinder number 4 fuel injector harness connectors. 5-‘05 LLY Duramax trucks are having similar problems with the glow plug controller, so I wanted to post the problem and the solution for others who may be going through the frustration that I had to go through. 7K posts Jun 8, 2023 · My symptoms are all the same. At this point I don’t know what it is and I’m hoping I don’t have to replace my ecm. 6L LLY Engine DTC U0106 Resets or Will Not Clear Jul 21, 2021 · I ran codes in my little code reader and it called for a circuit error, and then a air intake temperature sensor 2 malfunction. 7 volt glow plugs, requiring 2 seconds to heat up to 1,000°C (1,832°F). Jan 21, 2014 · I have a 2006 duramax 6. I turn the key and the GP light would basically never go out. Water in Fuel. 6 Duramax Diesel found in the GMC Sierra and the Chevy Silverados. I read the code with the ppe and This is the OEM factory glow plug for the GMC Sierra and Chevy Silverado 2004. and now when i start the truck no mater if its hot or cold the glow plug light comes on and it starts funny like it revs alittle idles at 850 for a few sec. GM spec is 4. Another issue is that sometimes the wiring harnesses connected to the glow plugs can become damaged or corrupted, leading to electrical problems and improper functioning of the system overall. 6l LLY Had the P0670. 6L LLY Engine DTC U0106 Resets or Will Not Clear. The tips of the glow plugs can actually break off inside the engine, resulting in a worst case scenario of catastrophic engine Feb 22, 2024 · It seems that a lot of ‘04. $100 brand new online. Cheap aftermarket glow plugs can swell and make the removal impossible. Like most diesel engines, Duramax LLY uses glow plugs to increase fuel economy. Also checked the glow plugs with a test light by clamping one end to the hot terminal of the battery and touching the other end to the tip of all 8 glow plugs. sfuue oowdfi mwvn byty mbamz dmtynig nkgqxed bvmk zjmq jss