clean exhaust filter?!?!?! - 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 Ect

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Old 11-26-2011, 05:46 PM   eBay Motors  #1 (permalink)
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clean exhaust filter?!?!?!

well today i started my truck and the cel was on and said clean exhaust filter..

i cant get it off of there.and i dont have anyplace to drive for long enough to regen.

i was going to order downpipe back exhaust this coming friday with dpf delete and all that good stuff..

but i was going to just hold onto it until i got my twin setup and efi live.

now my question is what happens if i install the exhaust and delete the dpf? will it just have a cel or will it effect the way the truck runs.?
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Old 11-26-2011, 05:50 PM   eBay Motors  #2 (permalink)
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it is the message you get when the DPF filter is starting to clog. you need to get it cleaned or you will be dead on the side of the road. sounds like you may have used dome LSD instead of ULSD fuel, and that will clog the DPF faster than you think.
also your regen system may have a problem going into regen mode. you need to take care of this as soon as possible.
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2006 gmc 3500 xcab lb, with the LBZ.
with air dog lift pump, race valve, egr delete, and efi reprogram, thanks to husker diesel.
84 gal fuel cap.34 main and a 50 gal aux transflo system.
20k curt 5th wheel, 20k goose neck.
still stock. 4x4. 430,000 miles and counting.
transporting new units from factory to ia. dealers and ship.
engine replaced at 404,000 mi with one with 118,000 miles.
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Old 11-26-2011, 05:54 PM   eBay Motors  #3 (permalink)
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i think i have been using ULSD and can i delete the dpf and put an exhaust on it without a programmer or efi live?

will it just show a cel or will it effect the trucks performance?
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Old 11-26-2011, 06:08 PM   eBay Motors  #4 (permalink)
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on the DPF delete, you will have to check with someone like jess at husker diesel.
i know he has done this before. but i think that you will have to do a reprogram of the ECM.
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2006 gmc 3500 xcab lb, with the LBZ.
with air dog lift pump, race valve, egr delete, and efi reprogram, thanks to husker diesel.
84 gal fuel cap.34 main and a 50 gal aux transflo system.
20k curt 5th wheel, 20k goose neck.
still stock. 4x4. 430,000 miles and counting.
transporting new units from factory to ia. dealers and ship.
engine replaced at 404,000 mi with one with 118,000 miles.
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Old 11-26-2011, 06:11 PM   eBay Motors  #5 (permalink)
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I do not see your situation getting any worse. Unless you can drive the truck and get it to regen you will be dead in the water. If you change the exhaust and not program it you will get a CEL. Some have done fine without programming but you run the risk. I would see if you cannot sit in it and bring your RPMs up to make it regen.
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Old 11-26-2011, 06:17 PM   eBay Motors  #6 (permalink)
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how long do i have to drive it before it totally shuts down on me..can i drive it until i order my new exhaus?t
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Old 11-26-2011, 06:22 PM   eBay Motors  #7 (permalink)
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It will not totally shut down on you. It will just limit itself to 2000rpms. Go pull your battery cable and leave it disconnected for about a minute. Then reconnect it. It should take it out of limp for a bit unless the soot mass is heavy. Like I stated before the best thing to do is drive it so it can regen.
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06 2500 CREW CAB 4X4 LBZ LOONNGGGGG BED
EXHAUST,EFI LIVE,S&B COLD AIR INTAKE
AUTOMETER GAUGES, TRANSGO JR, BLOCKED, TIE ROD SLEEVES...

WORK RIG
2014 3500 CREW,DUALLY, LML, HARBOR 9' UTILITY BED Bone Freakin Stock
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Old 11-26-2011, 06:27 PM   eBay Motors  #8 (permalink)
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yea its alot of stop and go around here..no place to hold it at a constant speed for 10 minutes ya know..i had the drivers side battery out today..the light came on after i hooked it back up..dont know if that has anything to do with it..ill just start driving it hard for a couple days see if it will regen
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Old 11-26-2011, 06:29 PM   eBay Motors  #9 (permalink)
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You may try and Idle it for a little while. They will regen at idle just not as good. That could be alot of your problem with constant stop and go. Just get on an interstate and run her hard. It certainly sounds like a DPF delete will be the best thing for you. I have a LMM that has been DPF free since 15k...It has never given me any problem
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06 2500 CREW CAB 4X4 LBZ LOONNGGGGG BED
EXHAUST,EFI LIVE,S&B COLD AIR INTAKE
AUTOMETER GAUGES, TRANSGO JR, BLOCKED, TIE ROD SLEEVES...

WORK RIG
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Old 11-26-2011, 06:36 PM   eBay Motors  #10 (permalink)
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alright..i idle it alott..every morning and everything..closest interstate is like 30 minutes from me,.

ill go start it in the driveway right now and let it idle for a half hour
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