How to crank CRD over without fuel -
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back > Models > Jeep Grand Cherokee & Commander Forums > WK Grand Cherokee & XK Commander Forum > How to crank CRD over without fuel

Metalcloak: Celebrate Freedom with Free ShippingThe Cure for your Tie Rod Roll!FS: Wrangler RGB Multicolor Fog Light LEDs: Awesome Effect

Unread 06-26-2015, 09:22 AM   #1
Registered User
2008 WK 
Join Date: May 2014
Location: Houghton, MI
Posts: 284
How to crank CRD over without fuel

I'm going to be pulling all of the injectors out of my 08 CRD this weekend to replace the copper orings. For anyone that hasn't followed my "Stuck CRD Injector" thread, I have one injector with a leaking oring and the injector was fused in place by the fuel/carbon paste that was formed. I soaked the injector for over a week with various solvents, and finally got it out yesterday with the use of an injector puller. As much as I tried to clean up the solvent that was in the area, I'm sure some of it leaked into the cylinder when I pulled the injector. Also, given how wet the entire injector body was when it came out, I have a feeling that quite a bit of the solvent seeped into the cylinder before I pulled the injector. Also, once everything is buttoned up, I intend to change the oil as I'm sure it has been contaminated by said solvent.

I have an oil extractor vacuum and I intend to snake the hose down into the cylinder and suck out as much solvent as I can, but I know this won't get it all. With that being the case, I'd like to be able to crank the motor with the injector out to push out anything that may be left in the cylinder, but don't want it shooting fuel at 20k psi in the process. Is there a way to pull a fuse or otherwise disable the fuel system so I can crank it over a couple times?

bersh is offline   Reply With Quote Quick reply to this message
Unread 06-26-2015, 10:05 AM   #2
Registered User
2008 WK 
Join Date: Apr 2014
Location: Grand Rapids, Michigan
Posts: 294
unplug the fuel pump at the tank; or find the relay, which would be easier. Not sure if it will turn over long enough to push out the solvent, or if a code will be thrown right away keeping it from turning over.
Black 2008 Limited CRD
GDE Eco, EHM, 2014 Rubicon take-offs
JF Black WK Club #168
ggrassmid is offline   Reply With Quote Quick reply to this message

Quick Reply

Register Now

In order to be able to post messages on the forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
Email Address:


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

Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. is not in any way associated with Jeep or the Chrysler Corp.