V50 General : V50 2.0 d se **jerking **help **

[linearamp]

i have a V50 2.0d SE 2006 with only 38000 on the clock,
just recently is started to jerk at certain speeds . i wouldnt call it a misfire .(maybe a stumbling ) hard to explain.

in idle this doesnt happen ,idle is fine .it doesnt happen when im on a motorway doing between 50-70 mph in 5th or 6th gear..

Only seems to happen if i'm running around town especially doing around 30mph in 3rd gear thats when its the worse.its not cutting out / stalling or anything like that .when it starts doing it and i accelerate it stops .it doesnt do it when i take my foot of the acceleration pedal .just at a constant speed.

I have no warning lights on .i have taken it out on a open road and given it a blow out in 1st 2nd third gears (red lining every gear) i get no black / blue smoke from the exhaust .its driving me mad as my wife thinks im doing it on purpose (she doesnt drive).

Can anyone here give me any advice, apart from take it to a dealer thats going to cost a fortune ...maybe point me in the right direction as to what to check .

thanks in advance

[ptf]

Originally Posted by linearamp

i have a V50 2.0d SE 2006 with only 38000 on the clock,
just recently is started to jerk at certain speeds . i wouldnt call it a misfire .(maybe a stumbling ) hard to explain.

in idle this doesnt happen ,idle is fine .it doesnt happen when im on a motorway doing between 50-70 mph in 5th or 6th gear..

Only seems to happen if i'm running around town especially doing around 30mph in 3rd gear thats when its the worse.its not cutting out / stalling or anything like that .when it starts doing it and i accelerate it stops .it doesnt do it when i take my foot of the acceleration pedal .just at a constant speed.

I have no warning lights on .i have taken it out on a open road and given it a blow out in 1st 2nd third gears (red lining every gear) i get no black / blue smoke from the exhaust .its driving me mad as my wife thinks im doing it on purpose (she doesnt drive).

Can anyone here give me any advice, apart from take it to a dealer thats going to cost a fortune ...maybe point me in the right direction as to what to check .

thanks in advance

I have a 59 plate v70 with the same engine and had exactly the same issue, dealer had it twice. Incidently it was an intermittent fault. firstly they said the fuel filter was all clogged and very waxy, they changed that, but it happened again a few days after, but the worst it had ever done it, nearly had to pull over, but kept revs hard and accelerated and it cleared. went back for two days, had various test, but nothing, no codes, they can only assume it was a fuel contamination due to the filter. I went to south of france the day after picking it up and have been back 2 weeks and it seems to be fine, touch wood.

[138gat]

First thing I would do is change fuel filter, check for air in fuel lines and check fuel filter housing for any air leaks

[SonyVaio]

After the above you want to check on throttle body and give the EGR Valve a clean out.

[cheffy]

Mine was doing the same and getting progressively worse. Turned out it was the fuel filter and runs like a dream for only £60 at the local garage.

[linearamp]

Thanks for all the advice ..much appreciated ..just got a quote from a very good local garage £68 for replacing the fuel filter .So I'm going to get it replaced, when its done I will report back here hopefully will sort the problem out..

thanks again