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Model specific boards => Golf mk3 => Topic started by: sporty on 19 July 2009, 16:35

Title: knocking noise from rear- 8v gti
Post by: sporty on 19 July 2009, 16:35

Hi. Seems to be unrelated to engine speed, but starts almost as soon as I pull away. Had it on a ramp and wiggled the exhaust- doesn't seem to be knocking anywhere.
Is it the suspension - again I've tried pushing the back of the car up and down when stationary and no noises again.
Is there some lubricating I need to do on the chassis?
 :sad:

Title: Re: knocking noise from rear- 8v gti
Post by: ianw3321 on 19 July 2009, 17:01

Whats in your boot?

Title: Re: knocking noise from rear- 8v gti
Post by: johnson6672 on 19 July 2009, 17:06

Axle bushes, wheel bearings?

Title: Re: knocking noise from rear- 8v gti
Post by: Mikester on 19 July 2009, 17:16

I would say EITHER the rear beam bushes, or the top mounts.

Mine does this, and its the rear beam bushes.

Is the car lowered? I lowered mine to the floor, changed the top mounts, and left the really old tired rear beam mounts as is, and it didnt take long to ruin them.

Title: Re: knocking noise from rear- 8v gti
Post by: Wayne on 19 July 2009, 18:33

Rear top mounts or exhaust hitting the beam.

Title: Re: knocking noise from rear- 8v gti
Post by: sporty on 19 July 2009, 21:07

Exhaust been checked and not fouling. Sounds like the rear mounts then- how do I check, replace and if garage fixed - about what cost is it likely to be?
Also what's the danger if not fixed?

Title: Re: knocking noise from rear- 8v gti
Post by: Mikester on 19 July 2009, 21:18

The following is a dramatization:

(http://i207.photobucket.com/albums/bb7/fozzy443/mylowercar010.jpg)

Title: Re: knocking noise from rear- 8v gti
Post by: Wayne on 19 July 2009, 23:27

^^^Lol, lets be honest his problem was not fitting any top mounts at all.

Title: Re: knocking noise from rear- 8v gti
Post by: sporty on 20 July 2009, 13:27

Deffo coming from the rear- how do I check the rear beam bushes and what likely cost to repair?

Title: Re: knocking noise from rear- 8v gti
Post by: VW BUSH on 20 July 2009, 18:44

Quote from: Wayne on 19 July 2009, 18:33

Rear top mounts or exhaust hitting the beam.

+1

Engine mount fatigue can cause exhaust to hit if beam and top mount bushes are ok

Title: Re: knocking noise from rear- 8v gti
Post by: Clobba on 21 July 2009, 12:05

I had this problem and it turned out to be the heat plate above the exhaust. So although the exhaust is secure, the heat plate was wobbling about on top. cost about £3 for screws, washers and nuts

Title: Re: knocking noise from rear- 8v gti
Post by: sporty on 21 July 2009, 17:03

Can you tell me where I should be looking?
ta

Title: Re: knocking noise from rear- 8v gti
Post by: christomk3gti on 21 July 2009, 17:14

under your car  :grin:  :grin:

theres heat shields above parts of the exhaust. they do come loose over time and cause rattly noises etc....

i know this cos mines doing it lol