Replacing LB7 Duramax Injectors
If your LB7 Duramax is experiencing erratic performance, it's likely that the injectors need to be replaced. Even if you've replaced the injectors on your truck in the past, you may find that they're not functioning properly anymore. In some cases, the problem can be traced to faulty injectors, and replacing them can be expensive. Many shops charge as much as $3000 for an entire injector overhaul, so be sure to get the lb7 injectors repair done quickly and correctly.
The LB7 Duramax's fuel system is a high-pressure common-rail system, with direct injection and a CP3 fuel injection pump. Because the Duramax doesn't have a fuel lift pump, the system relies heavily on this pump to draw and pressurize fuel from the tank. Performance modifications put extra strain on this pump, and issues with it are common.
The injectors in the LBB7 Duramax are difficult to access, since they are not installed directly in the cylinder head. Instead, they're placed in special injector cups that are pressed into the cylinder head. As such, replacing the injectors and the injector cups can be very difficult. The only way to access the injectors is to drain the coolant and pull out the injector cups, which requires at least 12-14 hours of labor.
Aftermarket injectors are an excellent way to improve the performance of a Duramax engine. Aftermarket injectors for the LB7 Duramax are available from Bosch. This new design uses the latest technologies and materials to enhance performance over the older style LB7 injectors. In addition, the injection nozzle is equipped with an advanced nozzle.
To replace the injectors in the LB7 Duramax, you'll need to contact the Dieselogic experts who will remove the valve cover and the air intake piping, and disconnect the turbo and fuel lines. You'll also need to disconnect the wiring harnesses and valve covers before removing the injectors. As these components can get stuck inside the injectors, you'll need to clean them thoroughly to remove any sludge that might have built up.
While the LB7 Duramax engine is very efficient, it also has a high compression ratio, which makes it prone to malfunctioning. While stock trucks are unlikely to have LB7 Duramax problems, performance-minded trucks may experience them. You should always check with your manufacturer for details and ensure that the injectors are in the right condition.
Replacing LB7 injectors is not a difficult procedure, but it is time-consuming. Most of the work involves getting access to the injectors. Depending on how much time you want to spend, you can accomplish the job in one weekend. As long as you understand how to perform a diagnosis, you'll be able to perform the replacement yourself.
Another sign that your LB7 Duramax injectors may be in need of replacement is white smoke from the engine. While this is not necessarily an indication of a bad injector, it can be an indicator that the engine is not receiving enough fuel. Check out this post that has expounded on the topic: https://en.wikipedia.org/wiki/Engine.