Shut down process

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Apr 6, 2022 | 08:27 PM

Hunter3006

Thread Starter

5th Wheeling

Joined: Feb 2022

Posts: 37

Likes: 3

Shut down process

Hi everyone, two weeks ago I had a check engine light codes P20BA (def heater) and P0401 (EGR cooler Insufficient flow). I replaced the def heater and a couple of days later the check engine light went out for about a week and a half. Now the P0401 code is back. So I assume that a I have to replace the EGR cooler? Also will the P0401 code cause the truck to start the shut down process?

Apr 7, 2022 | 05:18 AM

Overkill2

FTE Legend

Joined: Mar 2017

Posts: 31,761

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From: Western NY

Quote:

Originally Posted by Hunter3006

Hey good morning.

What year truck and how many miles? Prior problems at all? More info will help others give suggestions.

Apr 7, 2022 | 06:14 AM

Hunter3006

Thread Starter

5th Wheeling

Joined: Feb 2022

Posts: 37

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2012, 205000 miles, 6.7

Last edited by Hunter3006; Apr 7, 2022 at 07:08 AM. Reason: added 6.7

Apr 7, 2022 | 07:09 AM

Hunter3006

Thread Starter

5th Wheeling

Joined: Feb 2022

Posts: 37

Likes: 3

6.7 diesel

Apr 7, 2022 | 07:16 AM

kper05

Lead Driver

Joined: Jan 2010

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Based on my experience, sporadic P0401 is the early stages of the EGR cooler plugging issue. Active P0401 will cause engine derate but with the two months I had the issue, it didn't cause a shutdown condition. Normal daily driving you won't notice the derate much but put it to work and it has an obvious lack of power, especially when you reach a hill. However, the truck wasn't healthy and didn't sound normal, best to just resolve the issue as soon as you can get parts.

205k miles is a good run if this is the original cooler. Unfortunately, it's an unlisted maintenance item just with various mileage results.

Apr 7, 2022 | 07:29 AM

Hunter3006

Thread Starter

5th Wheeling

Joined: Feb 2022

Posts: 37

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As for as i know it's the original cooler. I'm the third owner, my Dad being the 2nd. He bought it at 124000 miles.

Apr 7, 2022 | 12:54 PM

doczenith1

More Turbo

Joined: Aug 2002

Posts: 538

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From: Lansing, MI

Quote:

Originally Posted by Hunter3006

As for as i know it's the original cooler. I'm the third owner, my Dad being the 2nd. He bought it at 124000 miles.

My EGR cooler clogged at 58,000 miles (and 61 months). I had a lot of short trips unloaded during those miles so I was not all that surprised. I was able to get it covered under the 8/80 emissions warranty. If I remember correctly the bill would have been around $2,000.