Hey guys

I have 13 ml350 rwd aprox 89xxx now m276

I don't remember when it happened

but when i stop in red light or stop sign my engine noise is different than normal

it sound like small vibrate and i am not sure but kind of valve noise(i feel like hard to explain) and only r and d range

I can't feel anything when car is moving.

Only car is stop and r and d range and when i change the n and p range i can heard anything. it is normal

anybody have idea why car is making noise only stop position and r and d mode?

thanks

 

impossible to diagnose a noise over the Internet by a description. Take a video, HD quality, and upload. Could be motor mounts, could be a pulley, could be a million things.

Did you scan truck for codes with a real scanner?

 

if it only happens while in gear maybe something with the transmission?

but yes, fairly impossible to diagnose from such a description, unless maybe its a very popular problem and everyone knows what the sound is, clearly not in this scenario.

 

"noise" is a popular problem, yes. But without hearing it, no way to even start.

And...codes?