What happens when a diesel injector fails to close?
What happens when a diesel injector fails to close?
Over time, diesel fuel injectors wear out and fail to close completely. When this happens they cause a leak-down, resulting in a reduction of fuel pressure across the fuel rail. This can cause a difficult- or no-start condition as well as a smokey exhaust. Too much fuel will also flood a cylinder, effectively reducing …
Can a 5.9L diesel engine have a leaking injector?
Whether you’re dealing with a 5.9L or a 6.7L engine, you should understand the process of elimination of each injector on common rail Dodge Cummins applications in order to isolate leaking injectors.
Are there any problems with the Duramax injectors?
However, Duramax injectors (in general) seem to be relatively sensitive to contamination and may fail prematurely if proper maintenance is not performed at regular intervals. It is extremely common for the injector wiring harness to chafe over time.
Why is LB7 injector failure a common problem?
We know today LB7 injector failure is a common problem, and because the operating tolerances inside the fuel system are so tight, proper lubrication from the diesel fuel is critical.
What kind of injector does a GM 6.6L Duramax use?
Maximize the performance of the stock injectors in your 2006-2007 GM 6.6L Duramax with the DDP LBZ-50NZ 50HP Injector Nozzle Set (20% Over). No other upgrades provide you with the power and torque that a set of Dynomite Diesel Injector Nozzles can.
Over time, diesel fuel injectors wear out and fail to close completely. When this happens they cause a leak-down, resulting in a reduction of fuel pressure across the fuel rail. This can cause a difficult- or no-start condition as well as a smokey exhaust. Too much fuel will also flood a cylinder, effectively reducing
What causes a fuel injector to be dirty?
Fuel injectors are considered to be dirty when the hydrocarbons and additives which all forms part of today’s fuels, together with engine gunk and carbon, cause the injectors to become restricted. Fuel injector flow rates, atomization and distribution are affected and this can cause all sorts of drive-ability and performance problems.
How can I tell if my diesel engine has a bad injector?
Start the engine and allow it to reach normal operating temperature. Check each cylinder temperature by taking the temperature of each exhaust manifold runner as close to each cylinder as possible. The exhaust manifold or manifolds that are cooler than the rest are the ones with the faulty injectors.
Why does my car not start with a bad injector?
Start the engine. If it starts easier and the exhaust is cleaner, you have found the faulty injector. If the engine will not start at all, it is most likely due to a badly leaking fuel injector causing low fuel pressure. If the engine starts, it is an indication of a bad injector.
What to do if your diesel injector is running dry?
Use a wrench to loosen and remove the connector from the feed tube. Install the fuel feed block cap on the fuel line to shut off the fuel. Do not run the engine long with the fuel line disconnected or it will ruin the injector, which is now running dry. Start the engine.
How can I find out if my injector is bad?
There are two ways to locate a bad injector without spending the money taking it to the dealer for a diagnosis. Start the engine and allow it to reach normal operating temperature. Check each cylinder temperature by taking the temperature of each exhaust manifold runner as close to each cylinder as possible.
What happens when fuel injectors go bad in Dodge Ram?
There are two main ways that your injectors can go bad. The first is for them to become clogged, dirty, or unresponsive. When this happens not enough fuel enters into your Ram’s combustion chamber. The other way is if the injectors are leaking. When they leak, they can really do some damage.
How to reset the Check Engine light on a Dodge Ram?
Dodge Ram: How to Reset PCM and Check Engine Light. 1 Step 1 – Remove the PCM fuse. First, park your truck and turn it off. Pull the hood lever under the driver’s side dash, and then pull the safety catch 2 Step 2 – Reset the PCM. 3 Step 3 – Re-install the PCM fuse. 4 Related Discussions.
Why do I need to Reset my PCM on my Dodge Ram?
There are other reasons why you would need to reset the PCM, such as after the installation of aftermarket components that require a PCM reset so the truck can fully adjust to new components. The reset procedure in your Dodge Ram is as easy as they come.
Can a fuel injector cause a bad idle speed?
Idle Issues – With a fuel injector that is not properly atomizing fuel properly, your Ram is going to have a difficult time idling. It’ll feel almost exactly the same as if it had a bad spark plug. That is to say there will be a sudden drop in idle speed.
