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I got the “clean exhaust filter now” message two days ago…

I got the “clean...

I got the “clean exhaust filter now” message two days ago and then it went away

Mechanic's Assistant: How many miles are on the car? How has your mileage been lately?

Now I got it again today

Mechanic's Assistant: What is the model/year of your Chevy?

2008 Silverado. 2500hd

Mechanic's Assistant: Are you fixing your Silverado yourself? What have you tried so far?

I have not done anything

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

That is all for now

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Answered in 10 minutes by:
1/8/2018
Jared D
Jared D, ASE Certified Technician
Category: Chevy
Satisfied Customers: 2,314
Experience: Shop Supervisor at County Fleet
Verified

Good morning,

Does it seem like the truck is performing Re-gen like it should or has it been a while?

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Customer reply replied 7 months ago
I check with maxidas scan tool and last regen was 438 miles ago
It does not look like it’s trying to do it again even though I drove the truck this morning for about 45 miles

Here is what I would do:

1. Using the scanner, check the "Engine Run Time Since Last DPF Regeneration" parameter. This should be less than 17.5 hours.

2. Using the scanner, check the "Fuel Used Since Last DPF Regeneration" parameter. This should be less than 57 gallons.

3. Using the scanner, check the "Distance Since Last DPF Regeneration" parameter. This should be less than 500 miles if driven at sea level. If driven at or above 10000 feet above sea level, the value is 375 miles.

4. If any value exceeds the amount listed, perform the Diesel Particulate Filter (DPF) Regeneration.

Are there any trouble codes set?

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Please let me know if you need additional info.

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Jared D
Jared D, ASE Certified Technician
Category: Chevy
Satisfied Customers: 2,314
Experience: Shop Supervisor at County Fleet
Verified
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