New day, New issue.
So, while driving with the exhaust brake and tow/haul off, every 18- 20 seconds I'm hearing a noise that sounds like the exhaust brake and it lasts for 2-3 seconds and then goes away. This cycle has continued for the last 2 hours.
It doesn't matter if I'm going up hill or down hill. I tried turning on full exhaust brake and tow haul while deaccelerating hard a few times.
I tried turning off and on the tow/haul and exhaust brake but it's not changing this status.
Also, stopped and turned engine off for a few minutes to no avail.
Nothing showing up on the exhaust/turbo guage.
Any thoughts?
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