GS CC clutch jerky when cold

[Gransportman]

For a while after cold starting my GS (just had it 4 weeks now) clutch is jerky when pulling away, especially in reverse. (I have to do some confined manoeuvring where I normally park.)

Gently pressing the accelerator has no effect until suddenly the revs jump, the clutch fully engages and I'm suddenly moving faster than intended - so far, not yet in contact with neighbours' cars...

The dealer insists this is normal but I can't believe it. Am I doing something wrong or is there a fault?

Thanks for any advice.

 

[D Walker]

It's not normal. My 4200 does not do it. It should pick up smooth, sometimes get a bump if put away with wet brakes and they bind, do you leave hand brake off. Not that I think that would cause it. Can you hear your F1 relay charging for at least 5 seconds on opening drivers door.

 

[ecarca]

I have something similar but less pronounced it seems. It's accompanied with some sort of clunky noise. It only does it cold and does not do it anymore later. It is not clutch related I think, I have a new clutch and an adjusted PIS/KIS. It is in 1st and reverse for me, not emphasized in one or the other.

I sometimes wonder if it could be the TPS. If I start the car and stay in neutral though, the engine revs normally even with the throttle only slightly depressed, so that seems to eliminate this theory.

 

[CatmanV2]

If the revs suddenly rise it sounds rather more like a problem with either the throttle body or the pedal position sensors. My money would be on the latter.
OBDII reader would help if not tell you what the problem is.

You might try a battery reset, but it's certainly not normal

C

 

[Hexadex]

For a while after cold starting my GS (just had it 4 weeks now) clutch is jerky when pulling away, especially in reverse. (I have to do some confined manoeuvring where I normally park.)

Gently pressing the accelerator has no effect until suddenly the revs jump, the clutch fully engages and I'm suddenly moving faster than intended - so far, not yet in contact with neighbours' cars...

The dealer insists this is normal but I can't believe it. Am I doing something wrong or is there a fault?

Thanks for any advice.

I get the sudden lurching when reversing, it's always been like that.

 

[Zep]

Mine is a little bit more jerky when cold, this is more pronounced since I had the PIS adjusted to improve the shift. I understand this is due to larger tolerances in the clutch when cold and maybe a bit of extra viscosity in the F1 fluid.

If you are getting a big flare in revs and then a dumping of the clutch then that is not something I have had. Are you being as gentle as you can be with the throttle?

 

[safrane]

Does not sound right at all and points to the DBW throttle and a poorly adjusted clutch.

I have not started my GS since September but did today to get something out of the garage. Smooth both out and reversing in with no judder at all...set up by Emblem in Poole.

Try doing a throttle reset as described on here.

 

[stefanocirillo]

These clutches do not like being cold. It will always be jerky the first time you pull away until it gets up to temperature. At least that is what my car has been like since ownership 2 years ago. Remember as it isn't in the engine bay but rather at the back of the car, it takes time to warm up. With a bit of finesse with your right foot on the first few pull away's you can limit how much it jerks. You should find after driving for a bit it should be nice and smooth. If not then i would agree that the clutch settings may need adjusting.

 

[safrane]

As I posed beforehand non of my post 2004 coupes have suffered a jerky clutch even when cold...if they ****** they are not set up well or set beyond normal parameters.

 

[D Walker]

As I posed beforehand non of my post 2004 coupes have suffered a jerky clutch even when cold...if they ****** they are not set up well or set beyond normal parameters.

I confir with Peter - My 05 4200 does not jerk - Will find out for definite on Sunday as its 1 deg C, and I am under orders, get the car out and get the XMAS decorations out or I (SWMBO) is going to buy all new. needless to say being a Yorkshire man the car is coming out!!!!

 

[stefanocirillo]

As I posed beforehand non of my post 2004 coupes have suffered a jerky clutch even when cold...if they ****** they are not set up well or set beyond normal parameters.

I guess will have to agree to disagree. No signs of accelerated clutch wear and as mentioned runs spot on other than the first 1 or 2 pull aways from absolute cold starts. I have a print out with the clutch PIS settings etc and all are normal. I put it down to Maserati quirky characteristics

EDIT: I will say however that mine doesnt jerk so long as i am purposeful with my right foot on the first pull away. Any sort of hesitation from cold or variable throttle input may jerk it slightly. It is only a minor jerk though so as i said previously if it is really bad something must be going on.....

 

[CatmanV2]

Mine lives outside. Even zub zero, there's no jerkiness.

C

 

[Zep]

Just a thought Gransportman. Are you aware of the brake hold function? The brakes are held on momentarily when you take your foot off the pedal to give you time to move your foot to the gas pedal. It stays on longer when you are on a slope. Could it be that you are trying to pull away before the brakes release?

 

[Hexadex]

Just a thought Gransportman. Are you aware of the brake hold function? The brakes are held on momentarily when you take your foot off the pedal to give you time to move your foot to the gas pedal. It stays on longer when you are on a slope. Could it be that you are trying to pull away before the brakes release?

My garage is on a hill, I think you could have diagnosed my particular cause of lurching.

 

[Zep]

My garage is on a hill, I think you could have diagnosed my particular cause of lurching.

Glad to be of help!