Clean Exhaust Filter See Owners Manual now - Chevy and GMC Duramax Diesel Forum
07.5-2010 LMM Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

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post #1 of 14 (permalink) Old 08-09-2010, 12:07 PM Thread Starter
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Clean Exhaust Filter See Owners Manual now

How do I clean the thing? I'm currently in reduced power mode as well.

Will putting it in manual 1st or 2nd and driving for 5 miles work?

Thx for any input.

-Tom
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post #2 of 14 (permalink) Old 08-09-2010, 12:11 PM
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Yes !! I've heard you leave it in the lower gears to clean it out while in limp mode

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post #3 of 14 (permalink) Old 08-09-2010, 12:19 PM Thread Starter
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Is there a certain RPM I'm looking to maintain?
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post #4 of 14 (permalink) Old 08-09-2010, 12:27 PM
saw what you did there
 
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http://www.duramaxforum.com/forum/91...st-filter.html

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post #5 of 14 (permalink) Old 08-09-2010, 12:52 PM
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Quote:
Originally Posted by thenrich View Post
How do I clean the thing?
A dpf delete package from one of the vendors is a good alternative to cleaning the filter.

2008 Silverado 2500 CCSB 4x4
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post #6 of 14 (permalink) Old 08-09-2010, 12:55 PM
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A transient condition in the middle of a normal regeneration cycle can cause this to happen.

The ECM is programmed to inhibit or stop a normal DPF regeneration if there are any other codes that cause a MIL. This will cause the Clean Exhaust Filter See Owner’s Manual Now alarm and drop you into reduced power mode. I have had this happen with a MAF Sensor error in the middle of a normal regeneration cycle while towing in the middle of a torrential rain storm.

It takes an excessive amount of idling to plug your DPF. It is really hard to get the DPF load up that bad under normal driving conditions. If you don’t have a MIL, and if powering down for a minute and then restarting does not clear it, the simplest fix is to force a MANUAL REGENERATION. You need a scanner to do that, or have the dealer do it for you with their TECH-II. A scanner can also tell you if this is what actually happened by looking at the Miles since Last Regen and the Soot Load in grams with the scanner.

Once a MANUAL REGEN is initiated the engine will run at 2000-2200 RPM for about 15 minutes and will drink about a gallon of fuel. Be sure that your hood is open to keep your engine cool and that your AC is either off, or on re-circulate. A manual Regen while parked can really stink up the inside of your truck

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post #7 of 14 (permalink) Old 08-11-2010, 06:25 AM Thread Starter
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ok I have an update:

I tried the 1st and 2nd gear thing. Didn't matter the gear - always topped out at about 2300 rpm. Either way didn't work nor did I sense a regen had occured. Took the truck to the dealer they couldn't make a regen fire with their scanner either which indicated to them that the dpf is bad.

They said GM would cover the expense - which is quite costly but that there are only 3 replacement dpf's in the country right now so it would be a few days before I get my rig back.
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post #8 of 14 (permalink) Old 08-11-2010, 07:06 AM
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Man !! That bites !!... Thats why a lot of guys are doing the DPF delete option. But if you have the warrenty that you would rather not give up, I can see that too !!

Aaron Blackwell
Cen-Tex Marine
Proudly Serving the Marine and Oil Industry

2007.5 D-MAX, EDGE DIGITAL GAUGES, QUADZILLA WITH DPF DELETE, TUNED AT 90HP NO MORE NO LESS, STRAIGHT PIPED, 17" CHROME SHAKER RIMS WITH 285 70 17 BFG KM2 MUD TERRAIN TIRES, AIR BOX MODIFIED,BUSHWACKER BED CAPS, RECON SMOKED LOW PROFILE CAB LIGHTS

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post #9 of 14 (permalink) Old 08-11-2010, 08:29 AM Thread Starter
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I would love to do the DPF delete - I even called a shop about it. It's $1500 the same price as the replacement of the DPF. The diff is GM is paying the for the DPF replacment. I found it ironic that both cost were identical. The DPF delete kit covered the cost of the pipe, edge tuner and installation.

Now if I was in a situation where GM was NOT covering the cost - that's the direction I would go. But for now $1500 bucks is $1500 bucks.
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post #10 of 14 (permalink) Old 08-11-2010, 08:33 AM
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cheaper than 1500!! unless you are getting stainless exhaust..glad you got it fixed tho

Kyle
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