hesitancy/misfire on V12VR
Discussion
Looking for a bit of advice before I contact my dealer.
On the last 2 journeys in my car (V12 Vantage Roadster, 14k miles) I have had a loss of power and slight misfire at the beginning of my journeys when the car is cold.
I am not accelerating hard (car is cold after all), rather it happens just after I go round a sharp-ish bend quickly. Car stutters, misfires, won't rev or pull. It lasts for about 5-10 seconds and then goes. Once the car is warm it seems to go away.
Any hunches gratefully accepted.
On the last 2 journeys in my car (V12 Vantage Roadster, 14k miles) I have had a loss of power and slight misfire at the beginning of my journeys when the car is cold.
I am not accelerating hard (car is cold after all), rather it happens just after I go round a sharp-ish bend quickly. Car stutters, misfires, won't rev or pull. It lasts for about 5-10 seconds and then goes. Once the car is warm it seems to go away.
Any hunches gratefully accepted.
Lots on here relating to stuff like that.
Here's one-
http://www.pistonheads.com/gassing/topic.asp?h=0&a...
Searched "aston cutting out"
Here's one-
http://www.pistonheads.com/gassing/topic.asp?h=0&a...
Searched "aston cutting out"
divetheworld said:
Lots on here relating to stuff like that.
Here's one-
http://www.pistonheads.com/gassing/topic.asp?h=0&a...
Searched "aston cutting out"
That particular V8 based issue is one that sadly I know a lot about... Here's one-
http://www.pistonheads.com/gassing/topic.asp?h=0&a...
Searched "aston cutting out"
It should not (cannot) affect a V12V as there is a different fuel tank system.
tonyhall38 said:
Dirty throttle bodies.....at a guess....am sure a certain independants will be along to explain all and offer their advice....and book token....
So what's wrong with letting the Independents throwing their hat in with a guess also so we can argue the toss rather than just killing the threat? Maybe there is something to learn?
k you on about.....I said the Indi,s will be along to offer advise....t
very subtle,,Hope it is not related to this!
http://www.pistonheads.com/gassing/topic.asp?h=0&a...
Out for a drive in the V12VSR and enjoying the sun and suddenly whilst going a round a roundabout in no particular hurry there is a drop off in power and within a few hundred yards, speed drops off further, runs rough, rattly noise coming from engine bay and engine stalls. It would start but clearly it needed to be switched off and home she went on back of a recovery vehicle.
Car went back to Aston and they tell me the following; "both cats have broken up and maybe damaged the engine, Aston Martin have asked dealership to do some compressions and cylinder checks. Worst case scenario we have to replace the engine we are looking about two weeks, they have good stock at the factory".
Car has done 4k of miles, only 1,000 in my hands (3,000 as dealer demo) and both cats have gone?
I mention this as you have talked before about engines ingesting cat materials and that being terminal for the engine.
http://www.pistonheads.com/gassing/topic.asp?h=0&a...
CraigV12V said:
Out for a drive in the V12VSR and enjoying the sun and suddenly whilst going a round a roundabout in no particular hurry there is a drop off in power and within a few hundred yards, speed drops off further, runs rough, rattly noise coming from engine bay and engine stalls. It would start but clearly it needed to be switched off and home she went on back of a recovery vehicle.
Car went back to Aston and they tell me the following; "both cats have broken up and maybe damaged the engine, Aston Martin have asked dealership to do some compressions and cylinder checks. Worst case scenario we have to replace the engine we are looking about two weeks, they have good stock at the factory".
Car has done 4k of miles, only 1,000 in my hands (3,000 as dealer demo) and both cats have gone?
I mention this as you have talked before about engines ingesting cat materials and that being terminal for the engine.
Edited by CraigV12V on Thursday 14th April 14:47[/footnote]
[footnote]Edited by DAMIT on Tuesday 3rd May 10:24
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