Possibly a couple of problems. - Ford Powerstroke Diesel Forum
6.4L Problems Forum Having Trouble? Post here

User Tag List

LinkBack Thread Tools Display Modes
post #1 of 3 Old 09-07-2010, 05:45 PM Thread Starter
Serving Our Country!

KVB-R's Avatar
Join Date: Dec 2009
Location: Shaw AFB
Posts: 140
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Possibly a couple of problems.

Hi all,

My '10, job #2, F-250 recently on a somewhat long trip started idling weird. It wasn't really a rough idle, but seemed a little cyclical or harmonious and the truck would shake in sync with the idle at stop lights. When I say shake it wasn't a vibrating but more like the someone was shoving the truck a little. Maybe sort of like someone was revving the engine ever so slightly at like 6-8 time s a second? Once I got moving all seemed fine. Like I said this was the only time in 9k miles this happened and I'm not sure if it's an issue at all...

Secondly, occasionally when I run the air conditioning I get this nasty smell which last for about 5 minutes or till I get used to it. What causes this and is there any way to prevent it? It's just a little embarrassing when you've got a good looking girl in the truck and it makes it's presence....

OK, that's all for now and thanks again to all in advance!


Spartan'd, 4" ICON Stage II, 35" Duratracs, XPD additive and M1 full synthetic
KVB-R is offline  
Sponsored Links
post #2 of 3 Old 09-08-2010, 10:36 AM
Powerstroke.org Rookie
Join Date: Feb 2010
Posts: 10
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
mine idles pretty rough at the stop light when the DPF regen is occuring.
R_S_C is offline  
post #3 of 3 Old 09-15-2010, 05:36 AM
Powerstroke.org Rookie
Join Date: Jun 2010
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Wink A/C odor

You may have mold/mildew build-up in the ductwork (if it's a sour kind of smell). If you operate in a high humidity location, and run the air conditioning all of the time, condensation in the dutcwork could be created when you shut the truck off. You may have to get a spray-can of some sort of fungicide (if that's the correct term) and spray it in the ductwork (also check the cabin air filter if one exists). Afterwards, you might try turning off the A/C and running outside air through the ductwork the last couple of miles just to bring the ductwork back to ambient temperature and minimize the condensation issue. My wife's Jeep Grand Cherokee had the same problem and that's how the dealership said to keep the problem from recurring - and it worked so long as she remembered to do it...which wasn't very often.


2010 F-350, 6.4L SuperDuty; CC/SRW/SWB Lariat/Fx4
3.55 rear axle ratio
Factory running boards and Rhino liner
Firestone air bags
Banks Six-Gun Bundle

KC8RXQ is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the 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:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

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
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

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