Humming coming from air intake
There is a humming coming from the engine when I stop the RV or when the RV is in idle. This morning i was able to narrow it down to the air intake. When I give the engine just a little gas it goes a...
Forum Discussion
westend wrote:
I have the same engine and the same sound. It is the MAF device. I should clean it up and I'm sure the sound will go away but mine's been like that for 85K miles. If I install a new air filter, the sound usually goes away for a few thousand miles.
I haven't noticed any engine performance differences since this sound appeared but it can be noisy at stop lights and such. As was posted, opening the throttle body with the accelerator pedal eliminates the hum.
Thanks that is good to know. What is a MAF device and how do I clean it up?
