Grumbling noise at 2000-2200rpm

2002 Mitsubishi Pajero 3 litre petrol LWB auto
Car: Mitsubishi Pajero
Year: 2002
Variant: 3 litre petrol LWB auto
Categories: Gearbox & Clutch
When in park/neutral or drive(all gears) there is a rumbling noise from the engine at 2000-2200rpm range. Also coasting in Drive the rumbling noise will come in even when slowing down and foot is off the accelerator. Any ideas?
Problem added: Nov 18, 2011 (12 years ago)
petery

Points: 2
Check crankshaft pulley .If air con fitted , does noise disappear when it's switched on ?
Answered Nov 18, 2011 (12 years ago)
whittingehame

Points: 37,699
Reply
The grumbling noise is still thre with or without the a/c on.
Answered Nov 18, 2011 (12 years ago)
petery

Points: 2
Reply
Check crankshaft pulley .
Answered Nov 18, 2011 (12 years ago)
whittingehame

Points: 37,699
Reply

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Crankshaft Pulley
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