Odd noise/vibration on acceleration

*ArtistsRifles* · 09-11-2006, 03:31 AM

This should be good...
When we acclerate we get a deep bass roaring noise (which can best be described as being like the sound you got from a car after swapping the OEM air-filter for a K&N set-up) accompanied by a vibration through the floorpan/vehicle.
Lift off the the throttle to maintain speed and the noise vanishes.
Sometimes we can accelerate without the noise/vibration at all....

I was thinking maybe the exhaust was hung wrongly and was hitting the body as the engine moves with the effect of torque.

Any one got any differing thoughts/xperiences as it's a REALLY annoying sound!!

TIA,

Explorerman2 · 11-17-2006, 03:49 PM

I have the same problem with mine and it doesn't get worse or do any harm (but I've only had it a couple of months). It is most apparent climbing hills and only there from about 2200rpm to 2800 rpm and disappears at 3000rpm.It is a loud drumming/roar/ rather like hitting those rumble strips between the slow lane and hard shoulder on motorways. Is yours only affected at these revs? does anyone else have it?

regards

Brian

shytot4x4 · 11-18-2006, 01:30 PM

Dodgy viscous fan coupling? Those fans don't half shift a lot of air when they 'catch up' with the engine speed...

Simon H

09-11-2006, 03:31 AM	#1
ArtistsRifles Elite Explorer London, England 1998 UK Spec Join Date: Sep 2006 Posts: 103 Vehicle Specs (Original Poster)	Odd noise/vibration on acceleration This should be good... When we acclerate we get a deep bass roaring noise (which can best be described as being like the sound you got from a car after swapping the OEM air-filter for a K&N set-up) accompanied by a vibration through the floorpan/vehicle. Lift off the the throttle to maintain speed and the noise vanishes. Sometimes we can accelerate without the noise/vibration at all.... I was thinking maybe the exhaust was hung wrongly and was hitting the body as the engine moves with the effect of torque. Any one got any differing thoughts/xperiences as it's a REALLY annoying sound!! TIA, __________________ Neil 1998 Series 2 Explorer 1963 Saab Sport, 1974 Saab 95 V4 1990 Bentley Turbo RL 1974 Landrover Series 3 109" 24v FFR, 1968 Alvis Stalwart 6x6 "Maud", 19xx OT-90 Czech APC

11-17-2006, 03:49 PM	#2
Explorerman2 Wannabe Elite Explorer Brighton Sussex 1999 Explorer Join Date: Nov 2006 Posts: 64 Vehicle Specs	I have the same problem with mine and it doesn't get worse or do any harm (but I've only had it a couple of months). It is most apparent climbing hills and only there from about 2200rpm to 2800 rpm and disappears at 3000rpm.It is a loud drumming/roar/ rather like hitting those rumble strips between the slow lane and hard shoulder on motorways. Is yours only affected at these revs? does anyone else have it? regards Brian

11-18-2006, 01:30 PM	#3
shytot4x4 Wannabe Elite Explorer West Yorkshire, UK Not got an Explorer now.. Join Date: Sep 2003 Posts: 184 Vehicle Specs	Dodgy viscous fan coupling? Those fans don't half shift a lot of air when they 'catch up' with the engine speed... Simon H