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Cleaning exhaust filter keep dring, have 85k on 3500 hd,

Customer Question
cleaning exhaust filter keep dring JA...
cleaning exhaust filter keep dring
JA: How many miles are on the car? How has your mileage been lately?
Customer: have 85k on 3500 hd
JA: What year is your 3500?
Customer: 2013
JA: Are you fixing your 3500 yourself? What have you tried so far?
Customer: replaced air filter, replaced secondary MAF sensor, cleaned main airflow sensor
JA: Anything else you want the mechanic to know before I connect you?
Customer: reduced engine power message also
Submitted: 1 year ago.Category: GMC
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Answered in 42 minutes by:
10/28/2016
GMC Mechanic: Matt, Engineer replied 1 year ago
Matt
Matt, Engineer
Category: GMC
Satisfied Customers: 22,255
Experience: Honors degree in Mechanical Engineering, worked 8 years as a Formula 1 engine engineer.
Verified

Hello

as you have a reduced engine power message then there should be an error code you can pull off the ECU with a scan tool

this is by far the fastest way to get to the bottom of it

it’s also worth considering fitting a new fuel filter as if only slightly blocked this can lower fuel supply pressure and choke the main pump, the pump will be more sensitive to this when its cold as diesel thickens considerably with low temperatures.

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GMC Mechanic: Matt, Engineer replied 1 year ago

Hi

do you still need help?

Bear in mind that the site takes a deposit from you at the beginning and this is held by the site until you rate my answer at which point the cash is split between the site and the expert. I am only paid for my work on this question if you rate my answer, using the star system at the top of the screen. Please do not forget! Thank you

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Matt
Matt
Matt, Engineer
Category: GMC
Satisfied Customers: 22,255
22,255 Satisfied Customers
Experience: Honors degree in Mechanical Engineering, worked 8 years as a Formula 1 engine engineer.

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