Strange Question? Need Help!
I have a Gulfstream Crescendo Class A Diesel Pusher 2007, I noticed something strange and need help identifying what is going on.
When driving at almost any speed, I can feel and hear something engage it almost feels like the exhaust brake, but the RPM's do not change and I am not slowing or breaking I am driving and accelerating. I have tried shutting off the exhaust brake and it still does it, I have tried Shutting off the Generator thinking it might have been a change in RPM on the Generator. And it still persists.
The transmission does not downshift the RPM remains steady
The generator is not the sound I am hearing
I used both Economy mode and regular mode on the transmission No difference
IT is a freight liner chassis if this helps
Engine Oil just replaced, Generator just serviced
Chassis has about 47k miles
Other weird things that could be related????
Air filter suction thing in the engine bay keep showing I need to replace the filter, Had camping world look and they said I do not need to replace but if I reset the vacuum sensor it keeps showing replace.
Fuel economy seems a little lower than I would expect I average about 6.7 per the dash computer
I do not know if this is completely normal but I am trying to identify it I will be taking for 2000 mile plus trip in about a month and want to be sure nothing is wrong.
Thanks in advance for the help???
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