pippyrips

When my car is cold it sometimes shudders (for want of a better word) when pulling off from a stand still through the cluth pedal. It doesn't do it when progression further down the gears and disappears completely after it has warmed up (5mins or so)

Any ideas what this might be???

Cheers

dave_wrx_320

mine used to do that, it was the clutch release bearing, was told it happens alot on classics, had the clutch changed a few weeks back because it started to slip and had an sti clutch release bearing fitted instead of the normal wrx one, and the problem has stopped.

mef

My MY00 does it too, worst on damp mornings, very annoying but it soon goes away and you forget about it until tomorrow morning! AFAIK it's a Subaru trait, standard equipment, live with it!

Martin

muly

my93 wrx started to do this after 2 days of owner ship, turned out to be the clutch release bearing, so got a new clutch in ,and its like a new car

Mal26

It sounds like clutch judder which most subarus experience - it often results from damage to the surface of the flywheel which in the long term may need resurfaced or replaced. If the clutch isn't slipping I'd put up with it.

I think the MY99 model was particularly affected and a lot of people had new flywheels and clutches replaced under warranty.

pippyrips

cheers boys

Soapy Sam

The SIDC FAQ notes that some people reckon that a couple of good racing starts will help the judder.

I agree, perhaps a "sticky" residue builds up over time and this gets burnt off. Whatever, it does the trick.

There is an argument to do this regularly and NOT live with the judder as the flywheel wears unevenly. The longer you leave it the worse it will get until you have to replace or skim the flywheel.

Just my 2p

Mal26

A lot of people talk about doing a Santa Pod start but surely revs + slipping clutch = heat which must result in more residue/heat damage to flywheel?

Silver Scooby Sport

iTrader: (15)

I got that judder from cold as well...... think it's just a Subaru thing from what i have read before

Simon

Soapy Sam

I'm no expert, but I'm not sure that 1 or 2 Santa Pod starts would cause enough heat to damage (warp?) the flywheel. If you consider the heat generated in the discs under braking and liken it to the amount of time the clutch is actually slipping.....

Maybe one of the gurus could offer an informed opinion?

I had a helix fitted 15k ago, it was perfect - smooth, no judder until a couple of weeks ago and I thought "F**k, here we go again", so I did a couple of Santa pods and it's fine. It will probably come back, but I don't intend to "live with it", it drives me up the wall, after all a car as good as this shouldn't judder like an old bus.....

Scooby Roo

I've seen threads on this and it could also be the flywheel, unless I'm being a total **** wit

zhastaph

In the MY99 and MY00 it is defo a trait, but you can cure it. It's exactly as you describe above, only when cold.

When mine starts juddering (MY00), I build her up to about 30 mph, keep her in 4th gear, release the clutch, rev her to about 4,500rpm and then slip the clutch for a bit (bout 3 or 4 seconds should be enough). It has the same affect as 'a launch', but I do it this way cos it's not particulalry dangerous, a lot easier on the drive train and you don't get no funny looks from every bugger and his dog that's standin around.

After this I normally find it's cured for about 3 months, before it comes back again

currymonster

my MY 00 uk did it and my STI V does to a lesser extent, is eased a little by a touch more gas i find, but they all do it, cal