Notices
6.4L Power Stroke Diesel Engine fitted to 2008 - 2010 F250, F350 and F450 pickup trucks and F350 + Cab Chassis

Limp mode

Thread Tools
 
Search this Thread
 
Old Feb 4, 2014 | 06:11 PM
  #16  
colodan's Avatar
colodan
Thread Starter
|
New User
Joined: Apr 2011
Posts: 9
Likes: 0
I'd try dropping the DPF and blow out as much crap as you can with a shop compressor preferably after a regen (less soot to keep things stuck together). That'll buy you some time if it's actually bad. I got a half of a small sandwich baggie of black ash out from mine at 30K miles. Miles between completed regens increased by 50-75 miles right away.
right now it is in limp mode in my driveway, if I pull off dpf and blow it out, is it possible it will come out of limp mode?... fixing thermostats is a given, however, if I am going with the dpf/egr delete, not sure how much time and money I want to spend on the egr. would it be safe to drive to and get emissions with it the way it is now. providing it will pass that way. I'm assuming it will because more than likely it was stuck 6 months ago and passed fine.
I was just re-reading what they quoted you, crazy numbers, 425 to replace thermostat's.
Two big issues I see on your list of codes is stuck open stat and stuck closed EGR, they go hand in hand during a regen.
I thought it was high myself. think thermostats run about $40. EGR valve about $250-300. might be a good idea to pull out egr and see if I can clean it out before buying a new valve as I wont really be using it.
 
Reply
Old Feb 7, 2014 | 04:52 PM
  #17  
colodan's Avatar
colodan
Thread Starter
|
New User
Joined: Apr 2011
Posts: 9
Likes: 0
Just dropped the truck off at a diesel performance shop, He said its possible that with bad thermostats it is not getting hot enough to open egr valve. he is going to get his own codes before he does anything because he doesn't want to just take fords word for it. If he needs to fix everything ford quoted me on, it will be about half the price. I can live with that. I'm hoping the egr is still fine saving me some more money. Him and another place I got a quote from both said for me its probably not worth doing the delete because of the emissions tests every other year and the fact that I only put about 3000 miles a year on truck. so I'm hoping this finally fixes my issues for awhile.thanks for everyone's input on this.
 
Reply
Old Feb 7, 2014 | 05:00 PM
  #18  
senix's Avatar
senix
Super Moderator
15 Year Member
Liked
Loved
Top Answer: 1
Joined: Aug 2008
Posts: 37,384
Likes: 1,868
From: Frederick, MD
Club FTE Gold Member
Replace the Thermostats and the EGR and the housing for the EGR. The housing will break upon removal so just get one.

Once that is done drive and see what you get. When you drive it get it good and hot and keep it running till the regen is complete.

160F is aprox 1/2 the way between c and center of the guage.
 
Reply
Old Feb 8, 2014 | 08:56 AM
  #19  
StanleyZ's Avatar
StanleyZ
Logistics Pro
20 Year Member
Joined: Nov 2001
Posts: 3,788
Likes: 103
From: Georgia
You need to delete and tune. Then you need to either find a way to clean or replace the DPF before you put it back on for inspection. Any shade tree guy can do the delete. An experienced shade tree guy can do the stats.

My tuner shuts off the EGR so I don't know that you will get any problems if you use an H&S or Spartan tuner, but you will need the EGR working to pass inspection. That may take a higher level of mechanic. Lots of mechanics on Craigs List saying the can repair these trucks.

Now since it hasn't been mentioned I will remind you that mucking around with the emissions is a federal crime. I've never heard of a private citizen being charged but given the current political situation in the USA I would not be surprised if it happened. The max fine is either $2500 or $25,000 I'm not sure which, but you can Google the clean air act and find it. It may also be a state crime. So from one outlaw to another; the improvement in how my truck runs is worth taking the chance. I'm just saying. Hope this helps you.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Amelio
6.7L Power Stroke Diesel
16
May 9, 2014 05:41 PM
awq134
2009 - 2014 F150
11
Jan 9, 2012 07:57 PM
arrowheadfred
1948 - 1956 F1, F100 & Larger F-Series Trucks
14
Sep 26, 2011 09:56 PM
94WhiteF250
1999 - 2003 7.3L Power Stroke Diesel
56
Jun 19, 2011 09:30 AM
ryn6609
2004 - 2008 F150
7
Jan 7, 2005 11:49 PM




All times are GMT -5. The time now is 03:42 AM.

story-0
10 Ways Ford is LOSING to the Competition

Slideshow: 10 ways Ford is losing to the competition

By Joe Kucinski | 2026-06-15 09:52:01


VIEW MORE
story-1
Top 6 Best Deals Available on New Fords & Lincolns Right Now

Some great targets in today's expensive world.

By Brett Foote | 2026-06-15 09:35:19


VIEW MORE
story-2
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-3
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-4
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-5
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-6
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-7
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-8
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-9
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE