Wrench Caution Light comes on - Ford Powerstroke Diesel Forum
User Tag List

LinkBack Thread Tools Display Modes
post #1 of 5 Old 04-14-2013, 12:02 PM Thread Starter
Powerstroke.org Rookie
Join Date: Apr 2013
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Wrench Caution Light comes on

Wrench Caution Light comes on periodically resulting reduction of power message and a caution light to reduce power. Two Ford Dealers have been unable to anything when they do the computer diagnostics, they have also told me that unless we bring it into the shop with the lights on THERE IS NOTHING THEY CAN DO TO HELP ME. I can not make the light come on at our will. If I stop and turn the engine off for 10 to 15 min. the light goes out and we can drive anywhere from 50 to 200 miles. I suspect that the exhaust cleaning (burning) cycle has not come on since this problem started 450 miles back. I am driving to Alaska (my home). HELP!!!! I will be taking it to another Ford Dealer on Monday. I have 2008 F-450 4X4 dully crew cab with a 6.4L Diesel and a 5 speed auto transmission. We are towing a 15000 lb. 5th wheel trailer.
bears38 is offline  
Sponsored Links
post #2 of 5 Old 04-14-2013, 01:13 PM
Yeah it's a Turbo Diesel
mts678's Avatar
Join Date: Mar 2012
Location: Dallas
Posts: 4,049
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 83
Thanked 60 Times in 60 Posts
Feedback Score: 12 reviews
Do you have a tuner on it? Is your dpf and egr deleted or still on? If you have a tuner, have it scan for dtc's and see what codes it shows. Or if u don't have a tuner or code scanner, stop in any autozone and have them scan it for codes when the wrench light is on

Sent from AutoGuide.com App

2000 F250 7.3L CCSB 2WD
Tinted | Focal speakers & 12" Kicker | CTS Edge Insight | Wicked Wheel | 6 pos chip | 05 grill & lights | 08 mirrors & tailgate | EBVP delete | 08 console | Nathan P3 train horns & Onboard Air
Switching to hid's? Do it right!

mts678 is offline  
post #3 of 5 Old 04-15-2013, 07:01 AM
Compression Ignition Addict
04hdfatboy's Avatar
Join Date: Oct 2010
Posts: 4,594
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 16
Thanked 91 Times in 89 Posts
Feedback Score: 0 reviews
I believe the wrench light means a drivetrain malfunction.

08 F350 cc/sb 4X4
h&s minimaxx, 5" flo pro, 4" down pipe, no limit cold air intake, dirty diesel EGR delete with intake elbow, 6.0 exhaust manifolds, custom up pipes, ported intake manifold, Apex 71mm LP turbo, Rudy's cold side pipe, diesel site coolant and transmission filter, diesel site intercooler boots, ccv mod, bilstein shocks, gogo dd solenoid, HID lights, Airdog II 165, PMF traction bars, PMF drag link, moshimoto aluminum radiator
04hdfatboy is offline  
post #4 of 5 Old 04-19-2013, 11:23 AM
Compression Ignition Addict
bigt2317's Avatar
Join Date: Mar 2011
Posts: 206
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
When my wrench came on it was followed by a passive code (no check engine light but code was present). The code was for the oil temp and coolant temp deltas were too high which meant a clogged oil cooler.


Flickr pictures

2008 F350 King Ranch - A few fun things, Newton 2-1/2" leveling kit, HID headlights and fogs, 325/60 Hankook Dynapro ATM2's on stock 20" wheels, Firestone ride rite air bags, Air Lift wireless air controller, B&W gooseneck, Diesel site coolant filter, 30" LED bar
Build Thread

2005 Jeep Unlimited Rubicon - with some stuff
Build thread
bigt2317 is offline  
post #5 of 5 Old 04-26-2013, 05:07 PM
Premium Member
Powerstroke Happy's Avatar
Join Date: Mar 2010
Location: Red Hill, PA
Posts: 51
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I had the same thing happened to me. Wrench light came on. It threw a code that the dealer pulled up and I called for a malfunction of the fuel (lift) pump mounted to the frame rail. I was under warranty with mine and it went out at 47k. The code was P0232. I also had a reduction in power.

09 F-250 Lariat 6.4 Deeehezl
Crew Cab - 4x4 - Short Bed
Fully Loaded
Dieselsite Coolant Filter
AFe Drop-in Replacement CAI Filter
H&S Mini MaxTuner HD300
Hollowed out DPF and CAT
4" Superlift (Front)
6" Icon 1pc Blocks (Rear)
Nitto Trail Grapplers:
LT325/60R20 (35.12 H x 12.91 W)
oh yeah, almost forgot...530 RWHP and 1050 TQ
Powerstroke Happy 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