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post #1 of 5 (permalink) Old 08-10-2021, 14:03 Thread Starter
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Rumbling Vibration Noise

N+B 2001 Flair Motorhome/2000(yr.) Fiat Ducato (230)

For about a year now I have been chasing a rumbling vibration that occurs at take off from a stop and at speed if I am in lower gears and I excessively accelerate. (mostly noticeable in second but in third too if climbing an incline on the motorway)

I have systematically replaced numerous suspicious characters but I have not found the culprit.

REPLACED or REPAIRED
L + R Top and Bottom Rear Motor Mounts,
New Clutch and Flywheel,
L + R pilot drive shafts and CV (Both completely assembled as single units),
Full Transmission inspection passed with a like-new diagnosis,
Articulated headpins,
and, NEXT, I am headed towards replacing the springy bolts and exhaust fiber gasket on the exhaust assembly just behind the Turbo downpipe.

Does anyone here have or has had this issue??? Any recommendations for rooting out this vibration are appreciated!

Thanks!



4/3/2000 FIAT Ducato 18Q - 2.8 i.d.TD
8140.43 (Direct Injection)
122 PS (90kW;120 hp) @ 3,600 rpm
5 Speed

VIN: ZFA23000005887229
Engine: 3050633
Chassis: 05887229
MVS (SINCOM): 232.330.1.0

- FORGONE 2800 TD FIANC.BASSA PASSO CORTO
M = 2800 TD
V = FURGONE 4x2
Q = PORTATA 18 QUINTALI

Gearbox Stamp = 20KM57
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post #2 of 5 (permalink) Old 09-10-2021, 07:29
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Normally I'd have said that was CV joint related but you say they have been replaced, when it occurs check the rev counter, does it fluctuate? could possibly be clutch slip.


.

John
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post #3 of 5 (permalink) Old 09-10-2021, 07:36
GMJ
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Could it be something as simple as tyre wear and/or tyre pressures?

Donít argue with idiots because they will drag you down to their level and then beat you with experience. óGreg King




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post #4 of 5 (permalink) Old 09-10-2021, 07:53
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Have we ruled out anything none mechanical, such as furnishings within the accommodation unit?

John & Samantha

We bought a salvage American 5.7 litre V8 Ford RV project in July 2021.
https://vintagervadventures.com/


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post #5 of 5 (permalink) Old 09-10-2021, 08:30
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Could it be the dash in-fill (from original dash to windscreen) vibrating.
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