Whether you need to replace faulty fuel injectors in your Duramax or you simply want to upgrade your factory injectors, there are specialty tools and parts you should replace along the way. At Merchant Automotive, we are all about creating solution-based kits to make working on your truck much easier. That is exactly what we set out to do with our 2001-2004 LB7 fuel injector install kit.

This deluxe fuel injector install kit contains all of the needed parts we recommend replacing when switching out your fuel injectors.

Signs Of Bad Fuel Injectors in Duramax

When your Duramax powered truck starts to run rough, there are many culprits to investigate. Signs of dirty, clogged, or malfunctioning fuel injectors include problems starting your truck, rough idle, poor performance, failing an emission test, fuel consumption increase, and engine surging. It can often be difficult to diagnose malfunctioning fuel injectors on your own, so you may have to have a local shop test your injectors for proper performance.

Benefits

• Full Deluxe Install Kit
• Allows You to Use with Your Choice of Injectors
• Does Full Injector Replacement Job

Features

• Does Include Injectors
• Includes Replacement Gaskets/Hardware

Kit Includes

• Lower valve cover bolts
• Upper valve cover bolts
• Injector Lines
• Filter head rebuild kit
• Bleeder screw
• Water in fuel plug
• Fuel filter
• Return line bolts
• Oil filter
• Lower valve cover gaskets
• Injector cup o-rings
• Injector cup sealant
• Return line seals
• Injector o-rings and Coppers
• FICM seals
• Upper Radiator Pipe Seal
• Heater Pipe Seal
• Silicone Sealant

Duramax Diesel Bosch Fuel Injector

Faulty Duramax fuel injectors can cause your diesel engine to run rough and give you poor performance from your truck. You may experience anything from engine misfiring up to no-start conditions with a faulty fuel injector. Clogged or faulty fuel injectors will most certainly present themselves with some type of drivability issue on your LB7 equipped truck.

If you are experiencing slight misfiring or rough idling, you may only have one fuel injector that is causing the problem. Since fuel injectors are not a common wear item, it can be quite costly to replace them all for one failing injector. That is why we offer our fuel injectors in a kit of 8 or as a single injector, much like this one.

These fuel injectors are the same fuel injectors that came on your LB7 engine to restore factory-like driving performance. There are no core charges on these injectors and they are backed by a 12-month, unlimited mileage warranty. This is the perfect injector to replace one clogged or faulty injector on your Duramax Diesel.

• Direct Replacement
• OEM Like Fit And Finish

• Designed For LB7
• No Core Charge

Symptoms Of Clogged Or Bad Duramax Fuel Injector

One of the most common questions revolving around Duramax fuel injectors is how do I know if my Duramax fuel injector is bad?. Like any vehicle, a bad fuel injector can present itself in a few different ways. If you experience the following symptoms, you may want to have your fuel injectors professionally tested:

• Engine Misfiring
• Rough Idling
• Gas Mileage Decreases
• RPM Needle Bounces
• Truck Becomes Hard To Start
• Truck Won't Start

Details:

• Engine Manufacturer: Duramax
• Liter: 6.6 Liter
• Engine Designation: LB7
• Engine Years: 2001-2004

Applications:

• 2001-2004 Silverado/Sierra 2500HD/3500HD LB7