6.0 Help! P0281, fuel knock, injector???? - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
LinkBack Thread Tools Display Modes
post #1 of 10 (permalink) Old 03-09-2015, 02:24 PM Thread Starter
PSN Newb
 
Join Date: May 2013
Location: Oakland,TN
Posts: 10
6.0 Help! P0281, fuel knock, injector????

I was driving my 06 F350 dually home and everything was running great. I was coming up to a red light and when I let off the throttle I heard a pop and then the truck started idling bad, knocking and pouring quite a bit of white smoke out of the tailpipe. I limped home with it but I noticed when I gave it gas the noise would go away and the truck ran pretty decent. I pulled the P0281 #7 Contribution code. Is fuel knock really that loud or do yall think I have bigger problems. I am not off work until Friday to take it apart so I was hoping to get some input before then. The truck sounds like the old 6.9 diesel when it is idling. Some background on the truck: 92K miles, Magnaflow 4 inch exhaust, EGR delete, 03 turbo, S&B Intake, Elite Insanity tune, Head studs, 10" Fabtech lift, 22.5 semi conversion. If it is an injector should I just replace the one or would I be better off upgrading to bigger injectors? Any input would be greatly appreciated.
modular89 is offline  
Sponsored Links
Advertisement
 
post #2 of 10 (permalink) Old 03-09-2015, 06:43 PM
PSN Veteran
 
cfherrman's Avatar
 
Join Date: Mar 2015
Location: Hays, Kansas
Posts: 611
Re: 6.0 Help! P0281, fuel knock, injector????

I do know that a bad injector will not be noticed at higher rpms because the other 7 make up for it

06 f250 personal, 05 bmw x5 wife, 14 f350 srw work

Quote:
Originally Posted by Zmann View Post
it's a 6.0 nervous goes with it
cfherrman is offline  
post #3 of 10 (permalink) Old 03-10-2015, 12:36 AM
PSN Local
 
Mike T's Avatar
 
Join Date: Jan 2015
Location: Union, Ms.
Posts: 156
Garage
Re: 6.0 Help! P0281, fuel knock, injector????

Is the turbo making boost in a normal manner?

05 F350 cclb dually, egr delete, blue spring upgrade, coolant filter, cat and muffler delete, scanguage II
Mike T is offline  
 
post #4 of 10 (permalink) Old 03-10-2015, 02:10 AM Thread Starter
PSN Newb
 
Join Date: May 2013
Location: Oakland,TN
Posts: 10
Re: 6.0 Help! P0281, fuel knock, injector????

It did have a low boost code but when I was taking it easy trying to make it home it was still making boost. The problem just started all of the sudden.
modular89 is offline  
post #5 of 10 (permalink) Old 03-10-2015, 11:22 AM
PSN Veteran
 
roughneck0913's Avatar
 
Join Date: Oct 2008
Location: Arkansas
Posts: 842
Re: 6.0 Help! P0281, fuel knock, injector????

Sounds like the injector needs pulled honestly sounds like a tip broke. Possibly the head I've had quite a few now with tips breaking off. 7-8 have been #7 sadly

Sold---2000 f-250 4x4 cclb 6 pos tuned by cale airdog 250, holding a stock tranny. afe cold air few other tricks under the hood always
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


2008 F-250 CCSB 4x4 ZF-6 deleted from day 3
roughneck0913 is offline  
post #6 of 10 (permalink) Old 03-11-2015, 02:38 PM Thread Starter
PSN Newb
 
Join Date: May 2013
Location: Oakland,TN
Posts: 10
Re: 6.0 Help! P0281, fuel knock, injector????

I am really hoping it is only an injector
modular89 is offline  
post #7 of 10 (permalink) Old 03-12-2015, 01:59 AM
PSN Veteran
 
matthewd11's Avatar
 
Join Date: Nov 2007
Location: Rhode Island
Posts: 4,731
Re: 6.0 Help! P0281, fuel knock, injector????

stop driving it now before you melt a piston. Pull that injector and see what happened.

07 CCSB 4x4 Lariat FX4 Bronze Metallic/Sage
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
matthewd11 is online now  
post #8 of 10 (permalink) Old 03-12-2015, 05:29 AM Thread Starter
PSN Newb
 
Join Date: May 2013
Location: Oakland,TN
Posts: 10
Re: 6.0 Help! P0281, fuel knock, injector????

It has been parked since it happened. I drove it about 2 miles after it started and parked it.
modular89 is offline  
post #9 of 10 (permalink) Old 03-20-2015, 07:04 AM Thread Starter
PSN Newb
 
Join Date: May 2013
Location: Oakland,TN
Posts: 10
Re: 6.0 Help! P0281, fuel knock, injector????

Finally got a chance to look at it. The bolt for the injector hold down had loosened up and the injector had come up a little causing the O-rings on the injector to bust. Replaced the injector and the truck runs like new.
modular89 is offline  
post #10 of 10 (permalink) Old 03-20-2015, 10:09 AM
PSN Local
 
Mike T's Avatar
 
Join Date: Jan 2015
Location: Union, Ms.
Posts: 156
Garage
Re: 6.0 Help! P0281, fuel knock, injector????

If you don't torque those bolts to spec that can happen.

05 F350 cclb dually, egr delete, blue spring upgrade, coolant filter, cat and muffler delete, scanguage II
Mike T is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the PowerStrokeNation : Ford Powerstroke 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:
OR

Log-in













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

 
For the best viewing experience please update your browser to Google Chrome