Engine rattling noise
Thread Starter
Newbie
Joined: Aug 2016
Posts: 13
Likes: 3
From: Gunnison Colorado
ML350, 500E, SL500, 220D, C320, 300CE
Engine rattling noise
Hello all.
My ML350 with 144K miles has developed a rattling/ticking noise when warm in idle when I put in D or R. The noise goes when RPM is increased. Also when engine is at normal temp 80C the noise will be come and go intermittently at idle in P and N.
I have changed the following
Water pump
Power steering pump
Belt tensioner
Alternator
Harmonic balancer
Check trans fluid - correct level
Idler pulley
Serpentine belt
Noise appears to be coming from lower front of engine in vicinity of harmonic balance pulley ??
Noise is still there with serpentine belt off.
Ihave not changed chain tensioner but will do next week.
Someone suggested torque converter and associated parts as a potential.
I have searched all the threads that pop up discussing similar issues but can’t seem to find anything to help. Maybe I have missed something.??
Any help or ideas appreciated !!
My ML350 with 144K miles has developed a rattling/ticking noise when warm in idle when I put in D or R. The noise goes when RPM is increased. Also when engine is at normal temp 80C the noise will be come and go intermittently at idle in P and N.
I have changed the following
Water pump
Power steering pump
Belt tensioner
Alternator
Harmonic balancer
Check trans fluid - correct level
Idler pulley
Serpentine belt
Noise appears to be coming from lower front of engine in vicinity of harmonic balance pulley ??
Noise is still there with serpentine belt off.
Ihave not changed chain tensioner but will do next week.
Someone suggested torque converter and associated parts as a potential.
I have searched all the threads that pop up discussing similar issues but can’t seem to find anything to help. Maybe I have missed something.??
Any help or ideas appreciated !!
