4Pcs Diesel Fuel Injector Cap Block-Off Tool Kit for 6.4L Powerstroke, 6.6L Dura

Description

4Pcs Diesel Fuel Injector Cap Block-Off Tool Kit
for 6.4L Powerstroke, 6.6L Duramax, 5.9L&6.7L Dodge/Cummins
Item Description:
4Pcs common sizes of diesel injector caps/block-off tools, for you to work on and diagnose fuel system issues on Powerstroke, Duramax, and Cummins engines.
The Diesel Fuel Injector Cap/Block-Off Tool Kit includes the following tools:
1Pc 12mm Cap for 2008-2010 6.4L Ford Powerstroke applications;
1Pc 14mm Cap for 2001-2005 6.6L Chevrolet/GMC Duramax applications (LB7 & LLY) and 2003-2007 5.9L Dodge/Cummins applications;
1Pc 16mm Cap for 2011-2016 6.6L Chevrolet/GMC Duramax applications (LGH & LML);
1Pc 18mm Cap for 2006-2011 6.6L Chevrolet/GMC Duramax applications (LBZ & LMM) and 2007-2017 6.7L Dodge/Cummins applications;
Features:
This diesel fuel injector cap/block-off tool set is a toolbox essential for everyone working on Duramax, Powerstroke, and Dodge/Cummins fuel systems.
When a diesel engine fails to start, your first troubleshooting step should be to check fuel rail pressure. If the pressure is low, the most likely culprit is a defective diesel fuel injector returning excess fuel back to the tank. A return flow volume test will allow you to determine if excessive fuel return flow is the issue.
To identify the individual cylinder that is at fault, you will use this cap/block-off tool. The diesel fuel injection line is removed from one cylinder at a time and the cap is then installed on the fuel rail in place of each injection line. When the bad injector is blocked off, the fuel pressure at the rail will increase and your engine will start.
In some situations, it can be useful to have multiple block-off tools, because multiple diesel injectors returning a small amount of diesel fuel will display the same symptoms as an individual diesel injector returning an excessive amount of fuel.
The diesel injector cap tool can also be used for diagnosing engine knocking sounds that could possibly be caused by a diesel injector or a single cylinder issue, especially on engines where you can't use a scan tool or if a scan tool is unavailable.
When working on high pressure fuel systems, always remember to read appropriate factory service information, use common sense, and above all, WEAR SAFETY GOGGLES to protect yourself!
Package includes:
Four (4Pcs) Caps/Block-off Tools.
Please check pictures for more details.
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Delivery Time
4-7 working days to clients in USA
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◎Warranty & Returns
We accept exchange/replace item within 14 days after customer receive merchandise.
We will process RMA within 3 business days when we receive the item backed. We exchange/replace item if only item is in same condition as when        we shipped out. No exception.
Unwanted item must be in unused condition only.
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