Bad DPF?
Thread Starter
|
Junior User
Joined: Mar 2016
Posts: 60
Likes: 0
From: Colorado
Bad DPF?
Hey all, looking for some advice and input. I bought a 2011 F350 6.7 about 5 months ago. When I bought it it was fully deleted with a straight pipe but here in CO we have emissions so the dealership I bought it from had to put all the emissions stuff back on. I asked for receipts but they were really shady about it.
Labor Day I'm driving home from camping and the truck just stops running. It'll start and idle for about 5 seconds but dies after that or the moment I put it under load. I've checked fuel filter and fuel flow and everything seems fine. I'm beginning to wonder if the dealership f'ed me and put a used up DPF in there to try and save money? I don't get a DPF or DEF warning b/c I'm sure they never reversed the delete codes from the original delete.
Its at the mechanics tomorrow but I'm wondering, if it is the DPF, is it worth spending the money getting a new DPF or should I just save 50% and buy another delete kit? I have a little less than 2 years until the next emissions so I have some time to figure it out.
Anyone else have any other ideas on what could have killed it besides the DPF? Super confused. Thanks in advance!
Labor Day I'm driving home from camping and the truck just stops running. It'll start and idle for about 5 seconds but dies after that or the moment I put it under load. I've checked fuel filter and fuel flow and everything seems fine. I'm beginning to wonder if the dealership f'ed me and put a used up DPF in there to try and save money? I don't get a DPF or DEF warning b/c I'm sure they never reversed the delete codes from the original delete.
Its at the mechanics tomorrow but I'm wondering, if it is the DPF, is it worth spending the money getting a new DPF or should I just save 50% and buy another delete kit? I have a little less than 2 years until the next emissions so I have some time to figure it out.
Anyone else have any other ideas on what could have killed it besides the DPF? Super confused. Thanks in advance!
Last edited by hest_c; Sep 8, 2019 at 06:27 PM. Reason: Misspelling
Lead Driver
Joined: Jan 2010
Posts: 6,600
Likes: 84
How many miles in those five months? The first thing is to have the techs troubleshoot if it is or isn't the DPF. It could be anything, especially without a DTC. There can be DTCs that don't necessarily trigger a CEL.
Do you know if the dealer put stock Ford calibration back on the ECM? Or did they just hook up the DPF so they could visually call it "good?" If they just bolted it up and the truck still has a tune, that DPF has been slowly filling with soot since it hasn't been commanding active regeneration. I would have never thought about this but the shop that works on my truck was telling me a story where one of their customers purchased a "stock" F350 with the DPF installed but it turned out it was previously tuned and resold with the DPF put back on. Broke down while they were towing their horses.
If you have driven thousands of miles then it has been commanding regeneration otherwise you would have broken down in 500-1000 miles or so.
A DPF is around $4,100 just for the OEM parts.
Do you know if the dealer put stock Ford calibration back on the ECM? Or did they just hook up the DPF so they could visually call it "good?" If they just bolted it up and the truck still has a tune, that DPF has been slowly filling with soot since it hasn't been commanding active regeneration. I would have never thought about this but the shop that works on my truck was telling me a story where one of their customers purchased a "stock" F350 with the DPF installed but it turned out it was previously tuned and resold with the DPF put back on. Broke down while they were towing their horses.
If you have driven thousands of miles then it has been commanding regeneration otherwise you would have broken down in 500-1000 miles or so.
A DPF is around $4,100 just for the OEM parts.
Thread Starter
|
Junior User
Joined: Mar 2016
Posts: 60
Likes: 0
From: Colorado
I've put around 5k on the truck since I bought it. Since I'm not getting any warning lights, and knowing they were trying to do this all on the cheap, I'm assuming the shop did not reinstall the original code and just hooked up enough to pass basic emissions. I know they didn't re-connect the DEF system and I'm not getting a warning on that either. And I've seen the prices on a new DPF, it's through the roof! I may just go back to the delete kit if that's the case, I'd really just need the straight pipes again.
At the mechanic today so I'll update once I hear from them.
At the mechanic today so I'll update once I hear from them.
Lead Driver
Joined: May 2007
Posts: 5,613
Likes: 9
From: Flagstaff, Arizona
If you asked for receipts, and they seemed shady about it...…...I don't understand why in the world you would have ever bought that particular truck from that dealer????? Definitely crooks!
Thread Starter
|
Junior User
Joined: Mar 2016
Posts: 60
Likes: 0
From: Colorado
I'd already unfortunately purchased the truck when it came to that. I had two months before emissions were required and I'd planned another work around but when that failed I took it back to them as CO law requires dealerships to sell emissions passing vehicles. After they beat around the bush on invoices for the parts installed I knew they just went the cheapest route and wouldn't lift a finger to help with anything else.
Trending Topics
Mountain Pass
Joined: Sep 2004
Posts: 103
Likes: 5
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 6 Best Deals Available on New Fords & Lincolns Right Now
Brett Foote
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Verdad Gallardo
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Posting Guru
Joined: Aug 2007
Posts: 1,902
Likes: 26
From: BA, OK
I would advise you not to drive that truck another mile. If you have a deleted truck with the DPF still on the vehicle (it appears the dealer installed the hard parts but did not flash the ECM back to stock) then you are causing back pressure that will take out the engine. Problem is now you have to prove the ECM is not stock so the dealer has to fix it.
Lead Driver
Joined: Jan 2010
Posts: 6,600
Likes: 84
Yeah, I don't know how to confirm (prove) stock calibration or not. Maybe check and see if the EGT11 and EGT14 are showing crazy temps at idle? Mine isn't stock but nothing is different on the dash or my basic XLT two line display. Towing it to another dealer, paying a quick diag fee to see what they say (they'll be able to connect IDS and figure it out) and then going after the selling dealer is one way. But then you may have another tow fee to get it to the selling dealer to fix. This starts getting expensive.
If DPF on with no emissions calibration is the issue, I am impressed you made it 5,000 miles! At this point, the DPF might need replacing. I would have them fix everything and confirm there isn't engine damage.
If DPF on with no emissions calibration is the issue, I am impressed you made it 5,000 miles! At this point, the DPF might need replacing. I would have them fix everything and confirm there isn't engine damage.
More Turbo
Joined: Dec 2018
Posts: 535
Likes: 23
From: Arkansas
Does Colorado actually test and check if the emissions equipment is there? Last I heard it was just an opacity test, and a tuned truck with straight pipe exhaust would pass that so long as you weren't running on a really aggressive tune. I'm just stating what I know they do in some areas, I'm sure the liberalism is spreading and their testing is going to get more strict as time goes on.
Fleet Mechanic
Joined: Jan 2016
Posts: 1,804
Likes: 113
If you drove 5k miles like this then I doubt it would be the dpf. I would be looking at the hpfp. They will quit on you while running. If you do suspect the dpf just unbolt the exhaust pipe and see if the truck will run. I think you have other issues. Please keep us updated.
Thread Starter
|
Junior User
Joined: Mar 2016
Posts: 60
Likes: 0
From: Colorado
Finally got an update from my mechanic on Friday, when they finally got around to pulling the exhaust, after looking at a few other suspected items they wanted to check off, they found that both the CAT and the DPF were plugged up with soot and causing the engine to not be able to breath. Come to find out that the dealership I bought the truck from didn't fully return the truck to emissions standards, they just slapped a CAT and DPF on there and let me run with it, so no regen cycle, no DEF helping with the soot, nothing other than highway speeds to clean out the DPF.
After reviewing the options from the mechanic I just decided that I'm going to go back to straight pipes for the time being as getting the DPF cleaned and repaired and then reflashing the ECM and everything else was going to cost way too much. I'm also exploring options with the dealership. CO law states that a dealership cannot sell a vehicle that does not meet emissions standards. While this dealership got the truck to pass emissions it technically wasn't "brought to emissions standards" so I need to chat with them first and see if they'll step up and fix it properly or if I'll need to pursue legal actions. Good times.
After reviewing the options from the mechanic I just decided that I'm going to go back to straight pipes for the time being as getting the DPF cleaned and repaired and then reflashing the ECM and everything else was going to cost way too much. I'm also exploring options with the dealership. CO law states that a dealership cannot sell a vehicle that does not meet emissions standards. While this dealership got the truck to pass emissions it technically wasn't "brought to emissions standards" so I need to chat with them first and see if they'll step up and fix it properly or if I'll need to pursue legal actions. Good times.
FTE Legend
Joined: Mar 2017
Posts: 31,962
Likes: 9,194
From: Western NY
Finally got an update from my mechanic on Friday, when they finally got around to pulling the exhaust, after looking at a few other suspected items they wanted to check off, they found that both the CAT and the DPF were plugged up with soot and causing the engine to not be able to breath. Come to find out that the dealership I bought the truck from didn't fully return the truck to emissions standards, they just slapped a CAT and DPF on there and let me run with it, so no regen cycle, no DEF helping with the soot, nothing other than highway speeds to clean out the DPF.
After reviewing the options from the mechanic I just decided that I'm going to go back to straight pipes for the time being as getting the DPF cleaned and repaired and then reflashing the ECM and everything else was going to cost way too much. I'm also exploring options with the dealership. CO law states that a dealership cannot sell a vehicle that does not meet emissions standards. While this dealership got the truck to pass emissions it technically wasn't "brought to emissions standards" so I need to chat with them first and see if they'll step up and fix it properly or if I'll need to pursue legal actions. Good times.
After reviewing the options from the mechanic I just decided that I'm going to go back to straight pipes for the time being as getting the DPF cleaned and repaired and then reflashing the ECM and everything else was going to cost way too much. I'm also exploring options with the dealership. CO law states that a dealership cannot sell a vehicle that does not meet emissions standards. While this dealership got the truck to pass emissions it technically wasn't "brought to emissions standards" so I need to chat with them first and see if they'll step up and fix it properly or if I'll need to pursue legal actions. Good times.
Thread
Thread Starter
Forum
Replies
Last Post
Dougle07
1987 - 1996 F150 & Larger F-Series Trucks
6
Feb 12, 2014 10:20 PM
desygityaso
1994.5 - 1997 7.3L Power Stroke Diesel
11
Mar 30, 2008 09:20 PM