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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15201
Experience:  GM Grand Master Technician 2007. 14 years experience.
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My truck has 450,000 miles on it and it has been coding this

Customer Question

my truck has 450,000 miles on it and it has been coding this for about a year, since 300,000 miles. it doesn't code all of the time, and i have no lack of power and no change in mileage. can this be electrical and not mechanical? i can pull 6% grades pulling 12,000 lbs. at 60 mph, and clear the codes all the way for 12 miles and not loose any speed. if it is mechanical, i don't think that it would be able to do that. thank you .
Submitted: 1 year ago.
Category: Chevy
Expert:  Juan Crespo replied 1 year ago.

Hi there. My regular hours are weekdays from 2 to 8 PM EST. Please contact customer service at if you need immediate assistance.