Graunching noise turning left
Graunching noise turning left
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Discussion

TVRWhoa

Original Poster:

349 posts

289 months

Tuesday 1st March 2005
quotequote all
Can anyone shed some light on this problem,

I've noticed something weird over the last day or so. I first noticed it when turning a sharp left I felt and heard what can only be described as a graunch, its sooo hard to put into words what it sounds like. Since then I've been trying to get it to do it again. This morning in the work car park I was able to play about until I could get it to do it again.

If you turn the steering wheel left at about say twenty-to-two (imagine a clock) then it graunches, as soon as it goes twenty five-to-one then it stops, any tighter into the turn and it doesn't come back. Its almost immediately on the turn in, and only turning left - what does anyone think this could be - I want to take it back to dealers to have a look at but some educated guesses may help to locate it sooner, thanks

kojak

4,547 posts

282 months

Tuesday 1st March 2005
quotequote all
Have you checked the oil levels in the power steering AND engine oil. I'm sure I remember that low engine oil could be a cause...believe it or not.

hut49

3,544 posts

291 months

Tuesday 1st March 2005
quotequote all
If it happens when the diff is cold and at v low speeds it could be the diff locking up and the tyre scrubbing sideways as the turn is made.

kojak

4,547 posts

282 months

Tuesday 1st March 2005
quotequote all
Is it at the back or front?

dannylt

1,906 posts

313 months

Tuesday 1st March 2005
quotequote all
Can't believe it's the diff, and can't understand how it could be engine oil either. Either a problem with the rack or the pump?

Certainly can't hurt checking the PAS levels. I had a weird intermittent PAS problem and flushing the fluid sorted it completely.

jeremyc

28,048 posts

313 months

Tuesday 1st March 2005
quotequote all
Is it speed dependant?

I experienced a "turning left graunch" that turned out to be the exhaust pipe rubbing on a chassis member.

J_S_G

6,177 posts

279 months

Tuesday 1st March 2005
quotequote all
PAS levels would be the first thing I'd check. If it sounds like a "groan", especially.

Edited to add: Just check to see if you get this noise with the car parked up, but turning the steering wheel...

>> Edited by J_S_G on Wednesday 2nd March 00:24

kojak

4,547 posts

282 months

Wednesday 2nd March 2005
quotequote all
Check this thread.

www.pistonheads.com/gassing/topic.asp?t=129583&f=6&h=0&hw=steering

This is the thread where I read about the engine oil being the culprit.

>> Edited by kojak on Wednesday 2nd March 00:08

rocket

1,282 posts

313 months

Wednesday 2nd March 2005
quotequote all
If it is a kind of hollow groaning noise then it could indeed be the oil level. Strange...but apparently true.

rmaurer

251 posts

299 months

Wednesday 2nd March 2005
quotequote all
jeremyc said:
I experienced a "turning left graunch" that turned out to be the exhaust pipe rubbing on a chassis member.


I had the same recently. I'd put the car in for a service and the exhausts were taken off and refitted. After that, turning left with a certain amount of steering lock and accelerating lightly always resulted in a rumbling/graunching through the car. I had the exhausts remounted and that sorted the problem.

jonnie5

716 posts

282 months

Wednesday 2nd March 2005
quotequote all
rmaurer said:

jeremyc said:
I experienced a "turning left graunch" that turned out to be the exhaust pipe rubbing on a chassis member.



I had the same recently. I'd put the car in for a service and the exhausts were taken off and refitted. After that, turning left with a certain amount of steering lock and accelerating lightly always resulted in a rumbling/graunching through the car. I had the exhausts remounted and that sorted the problem.


Thirded! I'd bet a beer on it being that! (If I'm reading you description correctly )

Do you feel a vibration from under your seat at the same time as he noise? If so, it will be this I'm sure. Mine was fixed with gentle persuasion with a crowbar.

AJCERB

268 posts

274 months

Wednesday 2nd March 2005
quotequote all
rocket said:
If it is a kind of hollow groaning noise then it could indeed be the oil level. Strange...but apparently true.

or it could be a body under the car...

>> Edited by AJCERB on Wednesday 2nd March 17:16

davetherave1970

2,144 posts

275 months

Wednesday 2nd March 2005
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jonnie5 said:

Mine was fixed with gentle persuasion with a crowbar.
Same here the first time. After a while it started again so I had a small bracket made up that pulled the two pipes together slightly so as they don't touch the chassis. Been good ever since!

TVRWhoa

Original Poster:

349 posts

289 months

Wednesday 2nd March 2005
quotequote all
Cheers guys for the replies, it has just come back from dealers having had a leak on the PAS as it was completely out of fluid, as the pipe has been replaced, I'm assuming that the fluid would have been filled back up but i'll check (never assume anything)

The noise definitely comes from the left front and I think I can feel it through the wheel not sure about through the car - will check the oil level too.

It is like a groan a bit like this uuuuuuuurrrrghhhh is the best way to put it and its quite short lived (the noise that is). Can't rule out the exhaust but does seem to be only when turning left.

dannylt

1,906 posts

313 months

Wednesday 2nd March 2005
quotequote all
Too much of a coincidence I'd say! Check the PAS level, or flush assuming some crap got into it.

danny

TVRWhoa

Original Poster:

349 posts

289 months

Saturday 12th March 2005
quotequote all
Just an update on the graunching noise problem-

Took it to Gorner's this morning and they diagnosed the noise as being the exhaust rubbing on the chassis when turning left, so it will be in for a bracket to stop it soon.

So all those who diagnosed exhaust pat on the back !!

Thanks for all the advice