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2020 3.0 Diesel Engine fan Racing (Diesel particulate filter?)

Truckasaurus
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Brandonb0013 Enthusiast

Brandonb0013

Posted
Posted
2 hours ago, Mercracing said:


Im not who you were asking, but I’m just south in Appleton


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Awesome!  I'm up in De Pere.

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Brandonb0013
Brandonb0013

Dropped it off at the dealership this evening.  They said there was no service bulletin for this issue and they were not aware of it.  I printed off this article and left it with them since it explain

Brandonb0013
Brandonb0013

Received the truck with a new water pump installed. I'll test out the cold start with block heater in the morning.  Keep you updated as well.

Brandonb0013
Brandonb0013

I agree, I hope this is all that is needed until they can fix the remote start part.  I hope to hear your experiences if you give the block heater a shot! 

Chrisd534 Enthusiast

Chrisd534

Posted
Posted
3 hours ago, Brandonb0013 said:

This is the first time I've heard of it happening without using the block heater. Keep us updated if it continues.

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The cord is still all nicely in the bag it came in. I find it very weird. If it makes a difference while the fans were blowing high the ambient air temp was way off. I'm talking snowing and - 10 Celsius out while the truck is reading summer temps around 30 Celsius. 

Brandonb0013 Enthusiast

Brandonb0013

Posted
Posted
The cord is still all nicely in the bag it came in. I find it very weird. If it makes a difference while the fans were blowing high the ambient air temp was way off. I'm talking snowing and - 10 Celsius out while the truck is reading summer temps around 30 Celsius. 

I'd probably have the dealer replace your anbient air temp sensor if that's the case. Apparently that sensor does more than just tell you the outside temp.

 

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Chrisd534 Enthusiast

Chrisd534

Posted
Posted
Just now, Brandonb0013 said:

I'd probably have the dealer replace your anbient air temp sensor if that's the case. Apparently that sensor does more than just tell you the outside temp.

 

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The problem is they won't change anything unless its actively happening. Both times I brought it to them and they say there's nothing they can do because it can't be recreated. Both times it happened it went back to normal after a few hours and a cold soak

  • 3 years later...
Chevyluvr New Member

Chevyluvr

Posted
Posted

I am having an issue with my 2020 Silverado v6 duramax diesel: the cooling fan comes on when I start my truck and will not disengage after warming it up. My truck is going to the Chevy Service dept for the third time tomorrow as the problem is recurring. First visit: changed a sensor cost $760. Second visit: had the truck 6 days and partial harness change in the engine compartment costing another $760. It seems that when I get 25-50 drive able miles, the problem reoccurs. I called Regional Chevy Service Manager and they will work with Dealership Service Dept on this fix. Hoping this will not become a “lemon” issue. 

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