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Author Topic: Knocking  (Read 4126 times)

Offline h2o

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  • Posts: 6
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  • Model: Galaxy Mk2
  • Spec: 04 TDI Zetec
  • Region: South East
Knocking
« on: November 28, 2013, 05:40:41 PM »
Hi
My 2004 Galaxy TDi suddenly started knocking  under acceleration - its not really noticeable below 30mph but gets worse as the speed increases - as in the rate of knocking increases. By 70mph its really pronounced but as soon as I lift off the accelerator it completely stops but as soon as I apply my foot to the accelerator it returns straight away. I'd be grateful if anyone could advise me as to what may be at fault. Thanks.

Offline Mirez

  • Pondering the next mod...
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  • Posts: 3658
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  • Model: Galaxy Mk2
  • Spec: 03 115PS Ghia
  • First Name: Mark
  • Region: South West
  • Country: United Kingdom
Re: Knocking
« Reply #1 on: November 28, 2013, 06:22:39 PM »
A constant knock-knock-knock whilst going along or a single knock when you accelerate or lift off?

The former will almost certainly be a CV joint gone bad (most likely inner) whilst the latter could be the stub axle joint or the engine roll restricter.
03 Ford Galaxy 1.9 TDI 115 Ghia in Spruce Green Metallic
With cream leather interior, Full Bodykit, Remapped at 145bhp, Lowered on 18's
14 VW Tiguan 2.0 TDI 177 AWD R-Line in Deep Black Pearl
With panoramic sunroof, bi-xenon headlights remapped at 205bhp.
08 Ford Transit 2.2 TDI 115 in Frozen White
With retrofitted everything except another slidey door! :)

VCDS HEX/CAN - Scans/Coding done in Wiltshire in exchange for winegums! :)

Offline h2o

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  • Posts: 6
  • Thanked: 0
  • Model: Galaxy Mk2
  • Spec: 04 TDI Zetec
  • Region: South East
Re: Knocking
« Reply #2 on: November 29, 2013, 01:13:17 PM »
Thanks for the response.
Its a constant knocking but only under acceleration, as soon as my foot comes off the accelerator it stops - would that happen if the CV joints gone?

Offline Chrispb

  • Mindsaysyesbodysaysnono
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  • Posts: 3024
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  • Model: Galaxy Mk2 Auto
  • Spec: 52reg TDI 115 Ghia
  • First Name: Chris
  • Region: South East
  • Country: United Kingdom
Re: Knocking
« Reply #3 on: November 29, 2013, 04:37:12 PM »
Hello h2o and  [W4]

As said check driveshafts/cv joints.
2009 Kia Sedona GS In Black 2.9CRDI 183PS. 5 Speed Manual WAV.
2003 MK2 Galaxy Ghia In Solid Black 1.9 TDI 115PS. 5 Speed Automatic.

Upgraded Eberspächer booster heater  to independent heating with 7 day timer.

With VCDS lite (full version) need a code clearing or want to scan for faults in the north kent area, PM me.
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The FordMPV.com Forum - The free forum for questions and answers relating to the Ford Galaxy, S-Max and C-Max

Offline Mirez

  • Pondering the next mod...
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  • Posts: 3658
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  • Model: Galaxy Mk2
  • Spec: 03 115PS Ghia
  • First Name: Mark
  • Region: South West
  • Country: United Kingdom
Re: Knocking
« Reply #4 on: November 29, 2013, 06:35:01 PM »
Yeah pretty much! Once you have and power "on" then the CV will be under load hence the noise. Sometimes, but not always, its possible to just re-pack it with grease :)
03 Ford Galaxy 1.9 TDI 115 Ghia in Spruce Green Metallic
With cream leather interior, Full Bodykit, Remapped at 145bhp, Lowered on 18's
14 VW Tiguan 2.0 TDI 177 AWD R-Line in Deep Black Pearl
With panoramic sunroof, bi-xenon headlights remapped at 205bhp.
08 Ford Transit 2.2 TDI 115 in Frozen White
With retrofitted everything except another slidey door! :)

VCDS HEX/CAN - Scans/Coding done in Wiltshire in exchange for winegums! :)

Offline SPIKEY

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  • Posts: 63
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  • Model: Galaxy Mk2
  • Spec: 04/53 TDI 115 GHIA
  • First Name: James
  • Region: London
  • Country: United Kingdom
Re: Knocking
« Reply #5 on: November 30, 2013, 08:12:04 AM »
I had the same symptoms but an accompanying wobble, it was indeed the drive shaft that had failed.
Should be easy for a mechanic to diagnose.
Parts can be found pretty reasonably with some on here using I believe polish manufactured ones, however garage labour charges will ne what adds the main bulk to the final bill

Offline h2o

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  • Posts: 6
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  • Model: Galaxy Mk2
  • Spec: 04 TDI Zetec
  • Region: South East
Re: Knocking
« Reply #6 on: December 12, 2013, 06:58:50 PM »
Thanks for all the replies / help.
I've been busy with work and haven't got round to sorting the problem yet - I took the Galaxy for a drive yesterday and for some reason the knocking seemed a lot less apparent but I'm still going to check the CV joints this evening...

However, I have just read the Common Faults section and I think I may have worn splines on the gearbox output shaft - it seldom happens, but a couple of times when I've changed gear and began to accelerate the car appears to momentarily lose drive and once I lift off and reapply the accelerator it's ok again.
Could this also be a reason for the knocking?

Many thanks.

 

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