Engine power is reduced - Chevy and GMC Duramax Diesel Forum
General Discussion General Diesel Discussion.

 1Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 12 (permalink) Old 07-10-2019, 04:14 PM Thread Starter
 
Join Date: Oct 2011
Posts: 9
Engine power is reduced

If I'm idling the truck for about 2+ min the message "engine power is reduced" is displayed and the engine has no more power. After continuing driving for a mile or so the message changes to "clean exhaust filter" the engine power is back normal. My truck is a 07 with 285k miles. Any suggestions what's causing this behavior?
remiontheroad is offline  
Sponsored Links
Advertisement
 
post #2 of 12 (permalink) Old 07-10-2019, 04:27 PM
J83
DuramaxForum Enthusiast
 
J83's Avatar
 
Join Date: Apr 2014
Location: Alaska
Posts: 4,290
Quote:
Originally Posted by remiontheroad View Post
If I'm idling the truck for about 2+ min the message "engine power is reduced" is displayed and the engine has no more power. After continuing driving for a mile or so the message changes to "clean exhaust filter" the engine power is back normal. My truck is a 07 with 285k miles. Any suggestions what's causing this behavior?
Im assuming since you have a DPF warning its a new body 07. i would guess a bad sensor or a plugged up DPF. do you have any codes or anything with it or a scanner that can monitor regen cycles? Is the money light on?

2015 Chevy Silverado 2500 HD 6.6L LML
TCM & ECM Tuning by MotorOps
Y Bridge delete with SS up and down pipes
4" MBRP downpipe back exhaust with muffler
J83 is online now  
post #3 of 12 (permalink) Old 07-10-2019, 09:01 PM
Senior Member
 
GoBlowSnow's Avatar
 
Join Date: Oct 2016
Location: Denver, Colorado
Posts: 417
They put DPFs on 07s? I thought they didn't get them until 2008... On the LMMs

2008 Silverado 2500 Crew Cab Z71
GoBlowSnow is offline  
Sponsored Links
Advertisement
 
post #4 of 12 (permalink) Old 07-10-2019, 09:41 PM
DuramaxForum Fanatic
 
SilverGorillaLML's Avatar
 
Join Date: Feb 2015
Location: The mountains of va/wva listen for the banjos
Posts: 9,010
07.5 is when they switched to lmm. Try driving it until the message goes away and you complete the regen cycle. Have to maintain 55mph iirc.

My name is Nic
2012 qcsb 6.8L cummins 48re swapped ratchet shifter
2011 GMC Sierra 2500 CCSB LML,
Lil ole single s400, fuel,
supporting mods,
rancher tuned,
Various parts from SDP, WCFAB, LDS, DHD, FREEDOM RACING ENGINES GDP, EXERGY, ATS.
SilverGorillaLML is offline  
post #5 of 12 (permalink) Old 07-11-2019, 05:19 AM Thread Starter
 
Join Date: Oct 2011
Posts: 9
Don't have DPF system. It's cleaning the exhaust filter with injection diesel.
Why the message "engine power is reduced "?
remiontheroad is offline  
post #6 of 12 (permalink) Old 07-11-2019, 05:56 AM
LHN...We ARE the Joneses
 
Hook'em_Horns!'s Avatar
 
Join Date: May 2008
Location: Awww-stin, TX
Posts: 24,553
Send a message via Yahoo to Hook'em_Horns! Send a message via Skype™ to Hook'em_Horns!
Quote:
Originally Posted by remiontheroad View Post
Don't have DPF system. It's cleaning the exhaust filter with injection diesel.
Why the message "engine power is reduced "?
'exhaust filter" = DPF

It needs to complete the burn off cycle.....don't let it?, "reduced power" is what you get.

2007 LBZ 3500 LT3 DRW Crew Cab, Sulastics, Putnam XDR 15K, B&W 30K-Turnover GN+Companion, Ride-Rite Air...EFI'd by Rob
2008 LMM 3500WT DRW Crew Cab, 8 'Flat/GN, Workforce Alum Toolbox, Ride-Rite Air

Use-ta Haves 2006-6.0 3500 WT DRW ExCab Flatbed, 2005-LLY 3500 LS DRW Crew Cab, 2002-LB7 3500 LS DRW Crew Cab
I Live my life in such a way that when my feet hit the floor in the morning...Satan shudders & says "Oh shit, he's awake!"
Hook'em_Horns! is online now  
post #7 of 12 (permalink) Old 07-11-2019, 06:00 AM
Junior Member
 
Join Date: Oct 2018
Posts: 115
Quote:
Originally Posted by remiontheroad View Post
Don't have DPF system. It's cleaning the exhaust filter with injection diesel.
Why the message "engine power is reduced "?
DPF= diesel particulate FILTER.
Icutmetl is online now  
post #8 of 12 (permalink) Old 07-11-2019, 12:09 PM
Senior Member
 
GoBlowSnow's Avatar
 
Join Date: Oct 2016
Location: Denver, Colorado
Posts: 417
So if you have a DPF and it is the original to the truck, with your millage, chances are the DPF is plugged in a way that can't be cleaned via the automated normal method. It will likely need to be removed and taken to a place that can acid bathe the thing and get it cleaned that way then it should theoretically operate as new and regen every 400-500 miles or so. Also- any sensors in that area of the DPF may also be worn and tired as well.

2008 Silverado 2500 Crew Cab Z71

Last edited by GoBlowSnow; 07-11-2019 at 12:17 PM.
GoBlowSnow is offline  
post #9 of 12 (permalink) Old 07-11-2019, 12:20 PM
J83
DuramaxForum Enthusiast
 
J83's Avatar
 
Join Date: Apr 2014
Location: Alaska
Posts: 4,290
Quote:
Originally Posted by GoBlowSnow View Post
So if you have a DPF and it is the original to the truck, with your millage, chances are the DPF is plugged in a way that can't be cleaned via the automated normal method. It will likely need to be removed and taken to a place that can acid bathe the thing and get it cleaned that way then it should theoretically operate as new and regen every 400-500 miles or so. Also- any sensors in that area of the DPF may also be worn and tired as well.
or find a really big pot hole to drive through.... things fall off, stuff happens...
407driver likes this.

2015 Chevy Silverado 2500 HD 6.6L LML
TCM & ECM Tuning by MotorOps
Y Bridge delete with SS up and down pipes
4" MBRP downpipe back exhaust with muffler
J83 is online now  
post #10 of 12 (permalink) Old 07-11-2019, 02:45 PM
Junior Member
 
Join Date: Jul 2018
Posts: 53
Engine power is reduced

Quote:
Originally Posted by remiontheroad View Post
Don't have DPF system. It's cleaning the exhaust filter with injection diesel.
Why the message "engine power is reduced "?


If it doesn’t have the DPF, it will not have diesel injection into the exhaust. If it does have the diesel injection, it has to have the DPF. Only reason it wouldn’t have, is if someone has removed it. First thing is to pull the code as to what is causing the reduced power. Then you can diagnose from there. There are several things and failures that will cause the reduced power. We also need to know what, if anything, has been done to your truck. Is it deleted or stock, etc?


Sent from my iPad using Tapatalk Pro

2007.5 Chevrolet 2500HD CC SRW 6.6 LMM 190,000 miles. Bought new
Fully deleted, uppipe, 3” downpipe, EGR delete, cold air intake, cold and hot side tubes, EFI live tuning and DSP5 switch, Transgo Junior kit, PCV bypass, Allison deep pan and filter kit, Moog tie rod upgrade

2015.5 Chevrolet 3500HD CC DRW 6.6 LML 103,000 miles Bought with 98,000 miles
Stock

Last edited by Toolbox58; 07-11-2019 at 02:50 PM.
Toolbox58 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Chevy and GMC Duramax 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










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