testing Injectors......Fuel line cap - Dodge Cummins Diesel Forum
- HOME - FORUMS - GARAGE - TECH - ARTICLES - CHAT - CLASSIFIEDS - REVIEWS - VIDEOS - MEMBER MAP - STORE - INSURANCE -
- REGISTER - CALENDAR - INFO - SITE HELP - RULES - STAFF - MEMBERSHIP - ADVERTISE - CONTACT US -


Welcome to the Dodge Cummins Diesel Forum, the fastest growing Dodge Diesel Community on the internet.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us
Go Back   Dodge Cummins Diesel Forum > 3rd Gen. Dodge Cummins 03-07 Common Rail Forums > 3rd Gen. Powertrain
3rd Gen. Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect...NO ADVERTISING

CumminsForum.com is the premier Dodge Diesel Truck Forum on the internet. Registered Users do not see the above ads.

Auto Insurance

» Featured Product
Wheel & Tire Center

Closed Thread
 
LinkBack Thread Tools Display Modes
Old 01-12-2012, 06:54 PM   #1 (permalink)
Cummins Fan
 
Join Date: Jan 2007
Location: Northern California
Posts: 50
Thanks: 3
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
testing Injectors......Fuel line cap

so i want to stop the flow of fuel to my injectors one at a time for testing purposes, its my understanding that i can do this by blocking the fuel lines one at a time off the common rail, I understand this is very high pressure and dangerous.

i do not have a spare CR or fuel lines to use as donors, was hoping somone knew what thread that was comming off the CR, or a method of capping it, I do have a nearby hydraulic store, hoping i could find something there.

If not , can i remove one wire at a time from each injector, w/o killing myself, I know a dealer can cut one injector out at a time, but im hours away form anyone with that capability
any thoughts?
__________________
2003 5.9, built 48RE, 4" Banks Exhaust, BD lift pump, GlowShift 3 in 1 gauge, leveling kit, 34s, Ballistic locking hub conversion. New Bosch Injectors (stock), Smarty S06
b2krawler is offline   Quick reply to this message
Sponsored Links
Advertisement
 
Old 01-12-2012, 08:24 PM   #2 (permalink)
Diesel Head
 
Join Date: Feb 2010
Location: Ann Arbor, MI
Posts: 2,114
Thanks: 130
Thanked 157 Times in 141 Posts
iTrader Score: 0 reviews
There is a cap, its a miller tool. Search the forum, there is the part # listed somewhere on here. Its a cap just as you would imagine. Maybe the hydraulic shop can make you something that would work, its a real simple idea. Bring them a fuel line and see if they can make something?
__________________
'03 2500 QCLB 4x4 47RE One Piece Driveshaft
TruckPC Custom Ignition System Wiring
superman279 is offline   Quick reply to this message
Old 01-12-2012, 08:46 PM   #3 (permalink)
TECH SPECIALIST
 
steelhead01's Avatar
 
Join Date: Nov 2007
Posts: 5,178
Thanks: 366
Thanked 834 Times in 686 Posts
iTrader Score: 0 reviews
https://millerspecialtools.spx.com/D...x?id=735&gid=3
__________________
Funniest question&response on here
AH64ID: Is your kitty in place?
TONASKET:You callin me a *****???
steelhead01 is offline   Quick reply to this message
Old 01-12-2012, 10:01 PM   #4 (permalink)
Diesel Freak
 
Join Date: Apr 2009
Location: Ontario
Posts: 588
Thanks: 10
Thanked 32 Times in 30 Posts
iTrader Score: 0 reviews
so you cant just pull the electrical wires one at a time?
__________________
06 HO,Quad Cab, 4x4,48RE. Straight pipe + resonator. Mini Maxxed. S&B Cold Air. Exergy injectors. 08.5 steering upgrade. Rough country dual stabilizer
220,000 kms
04yamaha is offline   Quick reply to this message
Old 01-12-2012, 10:08 PM   #5 (permalink)
Diesel Head
 
Join Date: Feb 2010
Location: Ann Arbor, MI
Posts: 2,114
Thanks: 130
Thanked 157 Times in 141 Posts
iTrader Score: 0 reviews
Sounds like a quick way to throw an injector circuit open code and a check engine light, maybe even limp mode, who knows. Don't do it, but it will technically not allow the circuit to fire. If you wanted to bypass it electrically, get a resistor/potentiometer that has equal ohms to the injector coil and connect that to the leads for the injector, this way the computer will think everything is okay.

EDIT: the point of the tool is to test for a mechanical leak of fuel pressure. Without the cap, the fuel pressure is still lost. The injector firing is not the cause of the loss of pressure.
__________________
'03 2500 QCLB 4x4 47RE One Piece Driveshaft
TruckPC Custom Ignition System Wiring
superman279 is offline   Quick reply to this message
Old 01-12-2012, 10:41 PM   #6 (permalink)
Cummins Fan
 
Join Date: Jan 2007
Location: Northern California
Posts: 50
Thanks: 3
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
if i cap one line at a time the injector will be dry firing, can this cause damage to the injector? would only be running for a few minutes at a time
__________________
2003 5.9, built 48RE, 4" Banks Exhaust, BD lift pump, GlowShift 3 in 1 gauge, leveling kit, 34s, Ballistic locking hub conversion. New Bosch Injectors (stock), Smarty S06
b2krawler is offline   Quick reply to this message
Old 01-13-2012, 06:15 AM   #7 (permalink)
TECH SPECIALIST
 
steelhead01's Avatar
 
Join Date: Nov 2007
Posts: 5,178
Thanks: 366
Thanked 834 Times in 686 Posts
iTrader Score: 0 reviews
NO, Cummins tested and approved engine analysis method.


Quote:
Originally Posted by b2krawler View Post
if i cap one line at a time the injector will be dry firing, can this cause damage to the injector? would only be running for a few minutes at a time
__________________
Funniest question&response on here
AH64ID: Is your kitty in place?
TONASKET:You callin me a *****???
steelhead01 is offline   Quick reply to this message
The Following User Says Thank You to steelhead01 For This Useful Post:
b2krawler (01-13-2012)
Sponsored Links
Advertisement
 
Closed Thread

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Dodge Cummins Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 10:11 AM.



Powered by vBulletin® Copyright ©2000 - 2014, vBulletin Solutions, Inc.

SEO by vBSEO 3.3.2