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Engine light on" clean exhaust filter continue to dric. Ve…

Customer Question
engine light on "...

engine light on " clean exhaust filter continue to dric

Mechanic's Assistant: Has your vehicle stalled? Has anyone run a diagnostic test to pull the trouble code?

Ve till message goes away message goes away but shows up every time I start truck , engine light stays on ran thru a manual regeneration light disappeared but showed back up with san

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

Me message

Mechanic's Assistant: What year is your Chevy?

2013 silveradeo 2500 hd

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

Code 0420 ran manual regeneration 70 +/_ minutes @ 2800 rpm, drove high way 200 +/- miles @ 70 to 80 mph.clear codes they show bak up within 24 hrs

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

Truck usually idles around 4 to 500 rpm now idles around 800 rpm . truck has 138,000 on it

Submitted: 7 months ago.Category: Chevy
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Answered in 2 hours by:
12/5/2017
Chevy Mechanic: BOBBYSS, Master Technician replied 7 months ago
BOBBYSS
BOBBYSS, Master Technician
Category: Chevy
Satisfied Customers: 17,593
Experience: ASE MASTER CERTIFIED, AA DEGREE AUTO/DIESEL TECH
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Hello my name is***** you tell me if the truck only does this when first started?
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Customer reply replied 7 months ago
The check engine light comes on an stays on after starting. About 2 minutes +/- after starting the message " cleaning exhaust filter continue to drive till message disappears" shows up. I drive to were I am going an the message always disappears be fore I get to my destination or me shutting truck off. Idle is up to7 to 800 rpm when its normal idle is 4 to 500 rpm. drove highway today aprox. 250 miles @ 75 to 80 mph. message still showed up. there were 2 codes that showed up about 3 days ago 0420 and another relating to a control module. today the code was the 0420. exhaust...............below ..... cant remember.
My friend has a repair shop an he checked this for me. we did a manual regeneration for about 70 minutes @ 2800 +/- rpm. the check engine light stayed off an about 15 miles into my trip home from shop the light came back on the same message came up and it went into reduced power.
Chevy Mechanic: BOBBYSS, Master Technician replied 7 months ago

Thanks for the information. There are two issues that typically occur with this vehicle. You either need to have the filter cleaned out or you have a programming issue with the truck. GM had a lot of programming problems which causes this to continuously reoccur and reprogramming the computer takes care of it. The filter itself should be checked first though. I hope this helps. Please let me know if you need anything else.

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