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I have a 2015 3.0 ecodiesel no codes but my fuel mileage.

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Second opinion] i have a...
Second opinion] i have a 2015 3.0 ecodiesel no codes but my fuel mileage. when from 26/27 on hiway to 21/22 an i dont know why or what to look 4. i do have a good bit of 5.9 an 7.3 knowledge ijust got the truck took it on its first trip. did this? it has 62000 miles on it now my trip was 6200. when i got it i could set the trip gage it wood some time hit 30 now it will not get over 23 doing the same things? 57000 when i got it .were? what? have a foxwell nt510 scanner .an a shop what to look 4 thank rickJA: Has the vehicle turned into a gas hog? And how does it start -- same as usual?Customer: starts fine but milage is going downJA: What is the model of your '15 Dodge?Customer: ds crew cabJA: Are you fixing your Cab yourself? What have you tried so far?Customer: its fuel mileageJA: Anything else you want the mechanic to know before I connect you?Customer: no if reads it should b enough
Submitted: 3 months ago.Category: Dodge
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Answered in 20 minutes by:
3/24/2018
Dodge Mechanic: Chris, Shop Foreman replied 3 months ago
Chris
Chris, Shop Foreman
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Dodge Mechanic: Chris, Shop Foreman replied 3 months ago

I don't see a lot of fuel economy complaints on the Eco Diesel, but what I have seen recently is the boost sensor getting sooted up and cause performance issues. That can cause performance issues and affect fuel economy.

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Dodge Mechanic: Chris, Shop Foreman replied 3 months ago

Remove the boost sensor and clean it with some electrical contact cleaner and shop air (gently). That should help.

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Dodge Mechanic: Chris, Shop Foreman replied 3 months ago

If the sensor continues to get sooted up repeatedly, then the EGR valve is not closing completely and causing excessive sooting. Replacing the EGR valve will fix that.

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Dodge Mechanic: Chris, Shop Foreman replied 3 months ago

The boost sensor is on top of the intake manifold towards the rear. It is held onto the manifold by a single Torx screw. I can send you a picture of it if you wish.

Chris

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