Knocking noise in the boot

[sl33ek]

Hi guys,

I'm thinking of buying an '95 R33 GTS-T, and have put a deposit down for one.

The car drives great but there is one problem.

There is a knocking sound coming from the rear of the car, like a dull thud that occurs regularly, like once or twice every 5 seconds or so.

The owner said that it could be the shocks that need changing but I want a second opinion. He also said it might be the muffler hitting the chassis...

I've asked around and my friend said it could be the diff, but we are not mechanically mined so I just dont know. Is this a common thing with GTS-Ts?

If it is the diff, how much is it to repair/replace? Is it the shocks? or the Rear wheel steering problem, since this car steers at the rear too. Could it be the transmission??

Please help, I dont want to fork out the rest of the money until I get your opionions/theories!

Thanks!!!!

[boj01]

Have you checked that the spare tyre and tools are secure?

[sl33ek]

I doubt thats it because there is nothing in the boot except the spare wheel, and the tools are missing

[rickhead]

Have you got it up on a hoist yet. If not perhaps you should, theres lots of bushes under the rear drive train that need replacing, as well as the shocks.

[geordie]

Has it got aftermarket suspension? often worn struts and pillowball tops make knock noises, esp on gear changes etc.

[sl33ek]

Admittedly no.. does make sense doesnt it

I will see if the owner will let me take it to a mechanic before i pick it up.

He claims though that he's had it all checked underneath and he doesnt know what it is but he guesses shocks

I was just wondering if this was a common thing for a '95 model

[sl33ek]

Yes he said it was slightly lowered with adjustable rears but is not sure of the brand.

I'm starting to think its the bushes too, from my experience with my past two cars they weren't that expensive to repair

[predator]

maybe you should let them out?

[Abo Bob]

Yeah my guess is there is a midget in drag stowed away in the corner and he wants out.

Sounds dodgy, don't buy it until you find out what it is.

[Munna]

Check the jack in the boot (behind the panel to the left) if its not done up tight in its braket it will do exactly what you are saying.

[Tommyk]

is the battery secured ?

Try and move the rear of the car up and down to see if it makes the noise

[7heavn]

rear subframe bushes

[sl33ek]

Too late,

I bought it, its in my driveway as I type

Its a Nismo kitted virgin white '95 R33GTST series 1

It still made the knocking sound on the way home. I know i'm stupid for not getting it checked out but dayem, its in such great shape inside and out, you could mistake it for being brand new right out of a dealers. Not bad for a 10yo car.

Tomorrow I'll check the battery, the jacks and and while its getting it oil changed I'll get the mechanic to inspect the shocks/bushes and joints.

On another thing, the power on this thing is phenomenal, and its a nearly stock except for the bodykit, exhaust and filter. It was wet tonight so when I gave it some gas in third gear, the next thing i knew the rear wheels broke loose and i ended up in the lane next to me and not knowing how i got there. Luckily no cars were there.

Mind you my last car was a eunos 30X so I will have to completely change my driving style.

I'm happy to call this forum my new home so I look forward to posting and reading here from now on!

[dezzabye123]

my exhaust knocks on sway bars sometimes look for hit marks,,

[Tommyk]

Funnily enough, I only over the last couple of days noticed im getting some knocking coming from the rear. I also assume these to be the bushes

[sl33ek]

A friend of mine who inspected it when i got home said its most likely the exhaust and its quite common for lowered cars to make knocking sounds. I'll just have to take his word for it until a mechanical inspection.

I can live with the knocking sound, its not that loud anyway its just a small annoyance, easily drowned out by the turbo whislte, induction noise and exhaust. I love it all, it has character.

You might find this amusing but I drove home with the side mirrors folded. I didnt realise until the halfway point, and had no idea to flap them out lol.

[someonestolecc]

Congrats on the new car.

Get it checked out (since you didn't before you bought the car) as soon as you can.

Be careful