Leaking fuel injectors are a fire hazard and has the potential to cause severe and costly engine damage. It is important to identify them and take care of the problem as quick as possible. Proper fuel injector cleaning techniques can restore your injectors to function like new at a fraction of the cost of new fuel injectors. May 27, 2015 · dude thats an Lb7 engine, that means you have a bad injector, chances are was not head gaskets causing the noise, but head gasket problem is very possible. have the shop disable an injector one at a time till noise goes away and i strongly recommend NOT driving the truck while you have fuel knock.... cracked pistons can be results. also before they open it up check your injector balance rates anything out of spec replace them while your there The injector block off tool can also be useful for diagnosing engine knocking sounds that may be attributable to an injector or a single cylinder problem particularly on engines where this capability is not available through the scan tool, or a bi-directional scan tool is not available.

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I later replaced the injectors when the stalling problem, noise and smoke came back. It was a good thing I replaced the injectors, they were originals and shot. On another site, I was reading a post that described all the symptoms I had today, copious smoke, lack of power and LOUD engine knocking. My AAA account paid for itself today.
2001-2015 Chevrolet Silverado 2003-2009 Chevrolet Kodiak C4500/C5500 Series 2006-2015 Chevrolet Express Vans 2001-2015 GMC Sierra 2003-2009 GMC TopKick C4500/C5500 Series 2006-2015 GMC Savana Vans Equipped with Duramax™ Diesel Engine (RPOs LBZ, LB7, LGH, LLY, LML, LMM) Please Refer to GWM/IVH
The command circuit pulls the injector to ground through the FICM, while the control circuit reports injector activity to the PCM. With the FICM connectors removed, the control circuit should measure infinity. In the case of our 2003 Sierra, each injector measured a perfect 0.3 ohms, which became this month’s Diagnostic Dilemma. Dollars and Cents
Find Lb7 in Auto Parts Sale. New listings: Duramax LB7 Turbo - $400, 2003 lb7 injectors - $400 (Butte)
Aug 23, 2012 · I have an 08 duramax that is having some issues. almost 243,00 miles on the clock. The other day, it acted like an injector stuck, lots of white smoke out of the tail pipe and a bad engine knocking. I … read more

Lb7 injector knock

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Master Injector Kit for 2001-2004.5 GM 6.6L Duramax LB7 Do the job right with our Complete Kit. 8 – 6.6L LB7 Duramax Fuel Injectors (3 options to choose from) 8 – New Glow Plugs 2 – New Valve Cover Gasket Kits 8 – New Injector Sleeves 8 – New Return Line Banjo Bolts 8 – New Fuel Injector Feed Lines. Choose in Options:
Jul 22, 2014 · LB7 injector knock LB7. Well I tore it down today and pulled the injector. No signs of the copper seal loosing seal so since I needed to get the truck back together tonight being it was half way out of the garage, I made the decision to go to the dealer and grab a new injector. We have stock and Stage 1 high-performance 2001 - 2004 Duramax LB7 injectors for sale for the 6.6L LB7 Duramax engine. If you're looking to get more power and torque out of your 6.6L Duramax, these diesel performance injectors are a great solution to upgrade your power at a great price. The BD-Power 1715502 Remanufactured Fuel Injector for your 2001-2004 GM 6.6L Duramax LB7 is a direct replacement for your factory injector. BD-Power is one of only a few shops with the capability, the know-how and equipment to fully test and rebuild common rail injectors. Apr 26, 2013 · Yes, the bad injector will make alot of white smoke engine jerking and rough idle. Being that you have the lb7, get fixed as soon as possible. Your injectors are under the valve cover and will leak fuel into the crank case destroying the oil and engine. If it isn't injector could be fuel pressure regulator, and or head gaskets. LB7 Duramax injector problems are also common with internal cracking of the body and the rusting of the inner ball seat. Later Duramax models use a hardened ball seat while the LB7 is equipped with a non-hardened seat.
LB7 dilution problems that occur after you have replaced the injectors could be return line leaks under the valve cover or leaks at the injector line to injector connection. Stripped allen head return banjo bolts may not torque or seal properly. Buy LB7 Injector Return Bolts A lot of the issues related to LB7 injectors are due to poor fuel quality. To avoid fuel contamination and injector failure, you should use fuel filters. If this is something that you are concerned about, then consider Bosch injector because it uses filter pumps from FASS, AirDog, and BD for the best performance. Fits 2001-2004 Chevy/GMC LB7 Duramax Diesel. 2 Year Unlimited Mile Warranty. 50% off the $1200 Core Charge! Looking for the absolute best replacement injector for your LB7 Duramax? Dmaxstore has you covered at an amazing price. These premium LB7 fuel injectors have been thoroughly tested for quality and performance on and off the road. 2001-04 LB7 NEW 200% OVER DRAGON FIRE All of our Modified CP3 Injection Pumps have our CP3 Technology, Microblue coating along with 60/65 Rockwell Hardness and Black DLC coating. 0 986 437 303. 2001-04 LB7 NEW Injection Pump 0 986 437 303SHO. Bosch Reman Duramax Modified Cp3 42% LB7* 0 986 437 303DF. Bosch Reman Duramax Modified Cp3 85% LB7* 2001-04 LB7 NEW 200% OVER DRAGON FIRE All of our Modified CP3 Injection Pumps have our CP3 Technology, Microblue coating along with 60/65 Rockwell Hardness and Black DLC coating. 0 986 437 303. 2001-04 LB7 NEW Injection Pump 0 986 437 303SHO. Bosch Reman Duramax Modified Cp3 42% LB7* 0 986 437 303DF. Bosch Reman Duramax Modified Cp3 85% LB7*
Jul 11, 1990 · Got them installed and have put maybe 1000 miles on them and seem to be working excellently! The power of the truck now is heads and tails over what it was before and it also fixed the injector knock I was having. I would recommend these to anybody looking for LB7 injectors and it was a pleasure dealing with LDS!! Replaced injectors, now engine has knock Discussion in '6.9L IH & 7.3L IDI Diesels' started by bird hunter, Jul 9, 2012. Jul 9, 2012 at 10:19 PM #1. bird hunter Full ... Standard® knock sensors create a voltage signal based on the vibrations caused by detonation to delay timing when spark knock occurs. BWD® knock sensors create a voltage signal based on the vibrations caused by detonation to delay timing when spark knock occurs. Replaced injectors, now engine has knock Discussion in '6.9L IH & 7.3L IDI Diesels' started by bird hunter, Jul 9, 2012. Jul 9, 2012 at 10:19 PM #1. bird hunter Full ... Aug 23, 2012 · I have an 08 duramax that is having some issues. almost 243,00 miles on the clock. The other day, it acted like an injector stuck, lots of white smoke out of the tail pipe and a bad engine knocking. I … read more