Engine briefly cutting out

[bmartin]

Murph7355 said:

As for any dealer never having heard of this, as mentioned above they should be keeping an eye on these fora.

This was more of an ironic comment as I'v heard this phrase so many times from car dealers. It's the most favourite response when a customer shows up with a problem that seems a bit more involving than just tightening a few screws... "Oh you are the very first customer with this problem, we'v never heard of it before"

But in fact I know that they know about the engine cutout problem so I'm a bit...hmmm...irritated ?

[Murph7355]

bmartin said:

...

But in fact I know that they know about the engine cutout problem so I'm a bit...hmmm...irritated ?

Oops. Apols.

[whoami]

astonfan09 said:

superlightr said:

Would a car manufactuer not at least look at car forums such as this or AMOC?

I would if was head of any car firm to get real feed back and issues from clients to improve the brand and keep custormers happy.

Perhaps AM should look on Piston heads.

Actually, they do. I first heard about Piston Heads through a chap who works for AM.

They must just take a look for their own amusement then.

[superlightr]

I have just sent this to AM web site to all available addresses

Dear Sirs,

As a keen AM fan, and a member of Pistonheads a car forum, a number of members and owners of AMV8s are having major issues with customer care and reliability. Please can you look at http://www.pistonheads.com/gassing/topic.asp?h=0&a...

and perhaps respond on site or sort something out for the posters who need your help but are not getting it.

Clearly good public relations helps make a brand.

regards
James

Pistonheads.com Forum Aston martin Engine breifly cutting out.

Edited by superlightr on Thursday 2nd April 09:56

update 2 replies so far:
Thank you for your enquiry. This has come through to Heritage Operations who are responsible for looking after pre DB7 models.I have escalated this to the correct department for an informed response. Regards

Dear Mr James Thank you for your e-mail regarding the Aston Martin V8. I have forwarded your e-mail to our Customer Care Manager and she will reply to you direct regarding your e-mail. Kind regards and thank you for bringing this to our attention.

Edited by superlightr on Thursday 2nd April 11:55

3rd
From: Hopkins, Andy <[e-mail]>
Subject: FW: Enquiry From astonmartin.com - Works Service From Mr James
To: [e-mail]
Date: Thursday, 2 April, 2009, 1:56 PM


Dear Mr James

Thank you for your email and information, including the link.

May I confirm that we regularly monitor website forums and blogs for information regarding our brand.

However it not our current policy to input to these sites.

Kind Regards from Aston Martin Customer Service


4th


Dear James Thank you for your taking the time to detail your concerns. I have forwarded your e-mail on to our Customer Care department. Regards Brand Communications Team, Aston Martin

Edited by superlightr on Thursday 2nd April 14:13

Edited by superlightr on Thursday 2nd April 14:27

Edited by superlightr on Thursday 2nd April 19:02

[Steve*B]

Assuming that the email reaches the correct department and they take the time to look it might help AM if those who have this problem list the details of their cars below. I'll kick it off: -

November 2006 (MY07) 4.3 Vantage - Engine cuts out every 500 miles or so for a split second normally on take off from a standing position.

Edited by Steve*B on Thursday 2nd April 11:14

[bmartin]

November 2006 (MY07) 4.3 Vantage - Engine cuts out every 500 miles or so for a split second normally on take off from a standing position.
December 2008 (MY09) 4.7 Vantage - Engine cuts out every 50 miles or so for a split second normally when cruising and pushing the throttle suddenly

[stanwan]

bmartin said:

November 2006 (MY07) 4.3 Vantage - Engine cuts out every 500 miles or so for a split second normally on take off from a standing position.
December 2008 (MY09) 4.7 Vantage - Engine cuts out every 50 miles or so for a split second normally when cruising and pushing the throttle suddenly

So this happens when the throttle is depressed. Does it feel like turbo lag, or an ignition cut? I had similiar issues with another motor as a result of improper a/f mapping and an over sensitive knock sensor...

Are you giving it enough throttle to engage traction control?

[Steve*B]

stanwan said:

Does it feel like turbo lag

No

stanwan said:

or an ignition cut?

Yes

stanwan said:

Are you giving it enough throttle to engage traction control?

No

[bmartin]

stanwan said:

So this happens when the throttle is depressed. Does it feel like turbo lag, or an ignition cut? I had similiar issues with another motor as a result of improper a/f mapping and an over sensitive knock sensor... Are you giving it enough throttle to engage traction control?

As mentioned in an earlier post, with my car, it happens when cruising and then suddenly pressing the gas pedal (e.g. when overtaking a car). So the gas pedal is maybe at 20 percent at that point in time and gets pressed to let's say 80%. If I remember correctly, the car starts to accelerate for a fraction of a second, then the engine is cutting out. My head is almost touching the steering wheel in this moment.

I know where you are coming from regarding the traction control but this seems very unlikely to me because

a) I do not completely floor the gas pedal
b) streets were always completely dry with plenty of grip
c) no sign if traction control intervention in the dash

[AMD1]

superlightr said:

However it not our current policy to input to these sites.

Kind Regards from Aston Martin Customer Service

So they are reading.....

Dear Aston Martin Customer Service, please review your current policy; we are your customers and would like you to join our discussions.









Do you think they will reply?

Edited by AMD1 on Thursday 2nd April 18:24

[XXXAngelXXX]

Steve*B said:

stanwan said:

Does it feel like turbo lag

No

stanwan said:

or an ignition cut?

Yes

stanwan said:

Are you giving it enough throttle to engage traction control?

No

that's exactly what i had like lets say 3 times on my former V8Vs....

[whoami]

XXXAngelXXX said:

Steve*B said:

stanwan said:

Does it feel like turbo lag

No

stanwan said:

or an ignition cut?

Yes

stanwan said:

Are you giving it enough throttle to engage traction control?

No

that's exactly what i had like lets say 3 times on my former V8Vs....

I get it every day, sometimes many times.

I also get the added excitement in my 4.7 of it completely cutting out when accelerating

[Grant3]

whoami said:

bmartin said:

I agree with whoami, it's a full cut out. I makes you almost touching the steering wheel with your head.

Very accurate description. It's quite violent; almost like applying the brakes very hard.

Just come into this thread rather late, sorry to hear of the problems some of you are experiencing, pleased to say that I haven't had this on either 4.3 or 4.7, but it is still a worry.. best of luck with a solution.

[rick-dms-]

it seems obvious that the cut out is happening under the same conditions for many of you, it may help if you report as to what has been done to try to repair the fault that has not worked this will help eliminate areas, it would be better if one person received this info with car details including mileage and the last six digits of the chassis number your personal details, who and when the car has been tested and what repairs where done, this should go into one email to aston who will then be able to check with the dealers concerned and yourselves, If Aston have the full picture with as many details as possible this can only help to secure a fix,

Alternatively if people are concerned with sharing personal information Aston could may set up a email address just for customers to report this concern with the details as listed above,

Just my thoughts, and please don't post personal information etc on here

[whoami]

Grant3 said:

whoami said:

bmartin said:

I agree with whoami, it's a full cut out. I makes you almost touching the steering wheel with your head.

Very accurate description. It's quite violent; almost like applying the brakes very hard.

Just come into this thread rather late, sorry to hear of the problems some of you are experiencing, pleased to say that I haven't had this on either 4.3 or 4.7, but it is still a worry.. best of luck with a solution.

Hi Grant, glad to hear that your car is going well.

I'm afraid that mine is actually dangerous (LISTEN ASTON MARTIN). Cutting out under acceleration is not something you should have to plan for when overtaking.

The car is now back with them.

AGAIN

[Grant3]

whoami said:

Hi Grant, glad to hear that your car is going well.
I'm afraid that mine is actually dangerous (LISTEN ASTON MARTIN). Cutting out under acceleration is not something you should have to plan for when overtaking.
The car is now back with them.
AGAIN

That is bad news, sincerely hope they nail it for you, having thought about this further I have had a number of what can only be described as "hiccups" where the engine hesitates/stutters a tad very briefly, maybe I have a very mild version of the same thing you describe.

Let us know what AM find out, yours certainly sound dangerous.

[stanwan]

What fuel are you folks using? Does changing the fuel type have an effect?

[bmartin]

stanwan said:

What fuel are you folks using? Does changing the fuel type have an effect?

I use ROZ98 all the time, SHELL/ARAL/ESSO (the big ones).

Edited by bmartin on Friday 3rd April 14:02

[whoami]

stanwan said:

What fuel are you folks using? Does changing the fuel type have an effect?

I use either Shell VPower or TOTAL EXCELLIUM. The problems happen with either.

However, I'm not sure what type of fuel I'd have to be using to cause the car to totally cut out whilst on the move??

[stanwan]

whoami said:

stanwan said:

What fuel are you folks using? Does changing the fuel type have an effect?

I use either Shell VPower or TOTAL EXCELLIUM. The problems happen with either.

However, I'm not sure what type of fuel I'd have to be using to cause the car to totally cut out whilst on the move??

My thoughts are that this happens when the car goes from closed-loop operation when its using the primary oxygen sensor to burn at lean/stochio ratios, to open loop, where it relies on TPS MAP lookup tables....

Sooooo, you need to get rick to log it on his system, maybe even attach a portable gas meter and then see what the car is doing when it hiccups. Might possibly be a mapping fault?