i have a auto zetec as well (mrs can't drive a manual) but never had that problem yet but only had it for two weeks. But have heard this problem before being linked with woolworths petrol so may be give it a bit ore time to clear out the tank and see how she goes

good luck

 

I assume the fuel filter has been changed also...

Hmm, we just picked up a second Focus in auto so I'll take it out for a run and see what I notice.

The other thing I'd look at is the throttle cable, sometimes that can have a kink in it, and cause it to be jerky as the kink gets past a sticky point. Hard to diagnose without driving it.

Does it jerk while staying at the same throttle setting, ie cruising, or more when going from off power to on power, or vice versa?

It could possibly be a driveline related problem, but its more rare in FWDs, usually RWD Falcons get driveline slop and cause jerking when going from off power to on power, etc.

Tim

 

it never happens when at say 60 kms or more, but below that it can happen while driving slowly or acceleratin fast very annoyin

 

oh yeh plus i have like 5 more years warranty so i wont accept this for much longer i dun really care what they say, a new car bein jerky just not right in my opinion , i took it in for the calibration software upgrade and they said well take a look at the jerkyness it came back much better but stil jerky hmmm ....
like i said before they tell me its fuel and climate the zetec takes premium and has always had premium but il give it a month or 2 more
if none else has this problem maybe i have a lemon and time for warranty?

 

did you wear the car in... hope you didnt flog it around when u just picked it up from the showroom hehe
when i got my new manual fiesta ( yeah yeah i know wrong section of the forum) i noticed the clutch and gear box were slightly jerky but after a couple weeks when it started wearing in it was fine.
but yeah, i know little of autos. dealerships are usualy fu%#ing hopeless. id personaly suggest going to a auto transmission place and get em to have a look at it for you. definately doesnt sound right especialy since its a new car... good luck with it

 

my car (manual) can be jerky sometimes, especially when in 1st or 2nd, but its not due to any fault of the car, but more so when i lift off power sharply in 1st or 2nd.
could be the same deal but in your auto?

 

Id blame the woolies crap fuel, evn tho you havent used it for a while it proberly blocked something.

 

why not flog it from the showroom ?

thats the best way to run them in, ive driven mine hard since the day i got it and it hammers

chris

 

LOL @ flogging straight away.
your not serious are you?? :fraz:
its the best way to wear them in if you dont want it to last very long.
no explaning needed as to why a car with a brandnew gearbox,engine, EVERYTHING that hasnt even been driven before shouldnt be flogged around.
even ford suggest no rough driving for first 1thousand k's in the manual.

 

yeh i didnt flog it until recently which was after my 15k service has done 16k to date , i noticed that since i start floggin it its gettin better and better but well c, plus if i drive with overdrive off its 90% jerk free with it on 65% jerk free , eh if it doesnt get better im gettin a falcon lol peace

 

That's how u get rid of the problems, blow 'em out the back pipe by putting a bigger exhaust in to help them flow out faster and running it at 6,000rpm to keep the air flow high for all those nasty problems...

I went easy on my car for a few hundred kilometres... in reality it was about 3-4000 before I got a little spirited. On the other hand, there's nothing worse than a Car that has done 15,000km and feels like a 3 cylinder. We had a Falcon XT V8 manual arrive at my old Dealership months ago that drove like a 4 cylinder camry...a week with one of the salespeople each night saw it absolutely hammering not long after that, it needed to be broken in just like a horse. Lots of horses he he he.

I'd say that's what you get for buying an auto, but the Focus auto is known for being smooth too!!! Spend some cash for a month and fill it with Optimax or Ultimate for 3-4 tanks and drive it a little harder, if it still isn't better after than then take it to another Dealer. Why take it to an auto specialist when you have free parts and labour under warranty for something that is obviously not your fault? (and don't tell me it's because Ford can't fix it - I know, just try another Dealer and let them know the problems the previous Dealer had, don't bitch to them about anything, just be friendly.)

 

gday

I had the same issue with my focus and the following was done

Changed Fuel Pump in tank
Reflashed the putah
Found dead spark plug, replaced all
Kink in fuel line, whole fuel line replaced
Crack in throttle body - replaced

She seems to be running now without dramas

 

Did you find a new car in amongst all that minge?!?!?!!

Tim I didn't know you guys picked up a new car out of all that!! Get the LX in the end?

By the way everyone, I heard Timbo's car on Friday night, he was champion enough to be on the road at the time that I was pulling into Newcastle airport, that thing sounds like sex on wheels!!!!! Great job mate.

 

are you sure your jerking isnt a misfire, check your leads.......

 

No i am quite serious, there are some schools of thought that say drive it like you always will from the start....

chris

 

Did you find a new car in amongst all that minge?!?!?!!

Tim I didn't know you guys picked up a new car out of all that!! Get the LX in the end?

By the way everyone, I heard Timbo's car on Friday night, he was champion enough to be on the road at the time that I was pulling into Newcastle airport, that thing sounds like sex on wheels!!!!! Great job mate.

I'll update the thread I started on our new Focus, major pain the butt factor, but sorted - my car has a twin.

And thanks for the comment on the exhaust, am pretty happy with it, was good to be in the position to catch ya.

Tim!