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6.7 Emissions issues


This is a discussion on 6.7 Emissions issues within the Engine and Performance forums, part of the Dodge Ram Cummins Diesel Forum category!
I am looking into buying a 08 6.7 cummins with 120k miles. Now i have been doing some research and ...


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Old 03-05-2016, 05:49 AM   #1 (permalink)
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Post 6.7 Emissions issues
I am looking into buying a 08 6.7 cummins with 120k miles. Now i have been doing some research and have noticed a lot of people having issues due to the egr and dpf on these trucks. Now here is my question if i were to buy this truck which is currently running fine and delete the egr and dpf and also add a tuner and a straight pipe is it possible that the damage has already been done from running the truck for 120k miles with the egr and dpf or will the delete kit clear the system and be fine.


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Old 03-05-2016, 06:01 AM   #2 (permalink)
 
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The soot buildup that has occurred over the last 120k is the only real 'damage' that has been done to the truck. As long as regular oil changes and other maintenance has been done you should be fine. Have a good shop vac ready when you do the EGR delete so you can clean everything up as it will be a mess. While you in there you will want to check/clean the grid heater as well. They are known for getting clogged up on a stock truck as well.

Greg
2012 | 2500 | CCLB | Custom MCC by Double R Diesel


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Old 04-03-2017, 11:28 AM   #3 (permalink)
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Originally Posted by Power247 View Post
While you in there you will want to check/clean the grid heater as well. They are known for getting clogged up on a stock truck as well.

Greg
2012 | 2500 | CCLB | Custom MCC by Double R Diesel
Please excuse me stupid question but:
What is a grid heater, what does it do, where can I find mine and how can I detect it being clogged?

I have a 2014 Ram 3500 6.7 Cummins with 6-speed drive >10,000 miles/month hauling cars.
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Old 04-03-2017, 04:06 PM   #4 (permalink)
 
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Originally Posted by truckmen View Post
Please excuse me stupid question but:

What is a grid heater, what does it do, where can I find mine and how can I detect it being clogged?



I have a 2014 Ram 3500 6.7 Cummins with 6-speed drive >10,000 miles/month hauling cars.


As far I know it preheats the fuel before it's injected into the cylinder


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Old 04-03-2017, 04:19 PM   #5 (permalink)
 
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Originally Posted by truckmen View Post
What is a grid heater, what does it do, where can I find mine and how can I detect it being clogged?
Cummins doesn't use glow plugs in any of the RAM trucks. The grid heater heats the incoming air to aid in starting and efficiency.
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Old 04-03-2017, 05:39 PM   #6 (permalink)
 
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Originally Posted by truckmen View Post
Please excuse me stupid question but:
What is a grid heater, what does it do, where can I find mine and how can I detect it being clogged?

I have a 2014 Ram 3500 6.7 Cummins with 6-speed drive >10,000 miles/month hauling cars.
The grid heater is located at the mouth of the intake horn. It heats the air as it passes through entering the cylinders to aid cold temp start ups. The element fins have a habit of the collecting soot being sent in to the engine when the EGR opens.

Greg
2012 | RAM 2500 | CCSB | Custom tuned by Double R Diesel
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Old 04-03-2017, 05:54 PM   #7 (permalink)
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Thank you for the clarification.
Another component I didn't know I had.
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