Knocking noise up front...

rob1sp · 06-05-2006, 17:17

Just recently I've noticed a significant knocking sound coming from somewhere underneath the car on the driver's side, it sounds like its coming from near to where the pedals are positioned, mostly happens on rough or bumpy road surfaces (which constitutes about 90% of our roads!), the car grounded out recently on a speedbump which was actually two speedbumps about half a meter apart (wasn't fully concentrating due to car full of irritable relatives), causing the car to go up over first bump and was coming down again as I came upon the second bump, so hitting the underside of the car. Still drives fine, not pulling to one side or anything serious, just this incessant knocking, any ideas what it might be? Hoping its nothing serious as am considering selling soon so don't want to fork out shedloads to fix it...

**VRStu** · 06-05-2006, 17:44

Did the knocking only start after your speed mountain incident?

Lummox · 06-05-2006, 17:48

Might be the exhaust mounting i n the centre, quite deceptive where the noise is coming from.

rob1sp · 06-05-2006, 21:36

Yes noise only started after my incident, faint at first but over past few weeks has got steadily more noisy, thought it might be the exhaust, but sounds like its coming further forward ie. under the engine somewhere, checked front bumper as it had a run-in with a speed-bump a while ago too, but all seems to be as it should, will have to go to local mechanic and see what he can find...

millsyman22 · 07-06-2006, 12:44

sounds like it could be gearbox to subframe mount worn i have same problem there about 60 quid

jimmyskeen · 07-06-2006, 19:05

just out of interest does it knock when you change gear as mine did this
turned out to be the roll bar paint had cracked around the mounting bushes causing movment when the engine was under load

KenONeill · 09-06-2006, 12:46

Loose corner on the engine bay undertray?

06-05-2006, 17:17	#1
rob1sp Briskodian Join Date: Aug 2004 Location: Bushmills, NI Posts: 771 Thanks: 0 Thanked 0 Times in 0 Posts	Knocking noise up front... Just recently I've noticed a significant knocking sound coming from somewhere underneath the car on the driver's side, it sounds like its coming from near to where the pedals are positioned, mostly happens on rough or bumpy road surfaces (which constitutes about 90% of our roads!), the car grounded out recently on a speedbump which was actually two speedbumps about half a meter apart (wasn't fully concentrating due to car full of irritable relatives), causing the car to go up over first bump and was coming down again as I came upon the second bump, so hitting the underside of the car. Still drives fine, not pulling to one side or anything serious, just this incessant knocking, any ideas what it might be? Hoping its nothing serious as am considering selling soon so don't want to fork out shedloads to fix it... __________________ '96 Volvo 460 weapon has now replaced the beast from the east(ern bloc)...

06-05-2006, 17:44	#2
VRStu Briskoda Staff Join Date: Dec 2004 Location: Hampshire Posts: 19,810 Thanks: 90 Thanked 859 Times in 774 Posts	Re: Knocking noise up front... Did the knocking only start after your speed mountain incident? __________________ Stu - Freedom Pimp Stu's Websites - http://www.fabia-vrs.com & http://www.octavia-vrs.com Stu's Car - 2007 Octavia vRS, Race Blue, Xenons, Columbus Navigation, Rear Parking Sensors, Maxi Dot, Light Assist, Jumbo Box, 18" Alloys, Stu's Cruise Control & OEM Integrated Bluetooth Telephone. SWMBO's Car - 2008 Seat LEON TDi Stylance, Black Magic, Sports Pack, Rear Parking Sensors. Something for Weekend - 2002 Lotus Elise RaceTech, Gunmetal, Radio, Carpet Mats.

06-05-2006, 17:48	#3
Lummox Hairy Yeti Join Date: Sep 2003 Location: Newport Pagnell Posts: 21,403 Thanks: 19 Thanked 573 Times in 501 Posts	Re: Knocking noise up front... Might be the exhaust mounting i n the centre, quite deceptive where the noise is coming from. __________________ Unit 18 now open Servicing, repairs, modifications you name it we do it. Cupra console bushes at special price, PM for a very competitive quote.

06-05-2006, 21:36	#4
rob1sp Briskodian Join Date: Aug 2004 Location: Bushmills, NI Posts: 771 Thanks: 0 Thanked 0 Times in 0 Posts	Re: Knocking noise up front... Yes noise only started after my incident, faint at first but over past few weeks has got steadily more noisy, thought it might be the exhaust, but sounds like its coming further forward ie. under the engine somewhere, checked front bumper as it had a run-in with a speed-bump a while ago too, but all seems to be as it should, will have to go to local mechanic and see what he can find... __________________ '96 Volvo 460 weapon has now replaced the beast from the east(ern bloc)...

07-06-2006, 12:44	#5
millsyman22 Briskodian Join Date: Aug 2005 Location: herts Posts: 35 Thanks: 0 Thanked 0 Times in 0 Posts	Re: Knocking noise up front... sounds like it could be gearbox to subframe mount worn i have same problem there about 60 quid

07-06-2006, 19:05	#6
jimmyskeen Briskodian Join Date: Sep 2005 Location: MIDLANDS UK Posts: 35 Thanks: 0 Thanked 1 Time in 1 Post	Re: Knocking noise up front... just out of interest does it knock when you change gear as mine did this turned out to be the roll bar paint had cracked around the mounting bushes causing movment when the engine was under load

09-06-2006, 12:46	#7
KenONeill Briskodian Join Date: May 2006 Location: Normally somewhere in Scotland! Posts: 9,621 Thanks: 46 Thanked 446 Times in 439 Posts	Re: Knocking noise up front... Loose corner on the engine bay undertray?

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