Join Date: Apr 2012
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Renault Master Dci 120 Panel Van Conversion Engine Vibration
Hi, I am new to the site, I came across it when researching a vibration problem. I have a trans/engine vibration problem on my MWB van around 40 to 50 mph in 4/5/6 gear if under load, vib dissappears if you lift off the throttle. What I have found is that the eng/trans has a lateral resonance at approx ten Hz which is excited by the drive wheel shaft order at approx 48 mph. I have fitted some displacement sensors and have measure lateral movement of 2.5 mm peak to peak at 10 Hz of the eng/trans relative to the van structure, in the van this feels like a side to side shake. There appears to be no significant vertical or forward/aft vibration of the engine just alot of lateral vibration.
I now suspect drive shaft and or engine mount problems. My van is 6 years old and only done 18000 miles, the vibration appears to have only started in the last year or so.
My local Renault garage have not heard of this sort of problem before which surprises me!
Appologies if this is not entered in the correct place on the forum.