Good morning all.

My '03 2.8 auto has started to occasionally run rough around 1750rpm on pulling gently.

I thought at first it was the road surface - juddering sensation - but then realised it was

mechanical. Not all the time and seems worse after a period of gentle running.

Any ideas please and how can I check things out myself?

Thanks in advance..

JJ

warped discs? blocked fuel injectors? worrn tyres? big ends gone? how mny miles your car done? regards andy

Sounds like it might be a coil pack....

Thanks for suggestions - just managed to see them! Mileage 43,000 new front discs and pads and newish tyres. Engine management light came on - garage checked and said 'unregistered fault' or something like that and reset it. Still not right. What puzzles me is it is fine if I give it some welly. Is there any way of checking a coil pk? Best regards, John

If a coil pack fails its not subtle, you would usually get a very aggressive misfire.

If a coil pack fails its not subtle, you would usually get a very aggressive misfire.

At last - fault shown up. Interrmitent over rich fueling on one bank..........

Booked in next wed for detailed lokksee.

John

At last - fault shown up. Interrmitent over rich fueling on one bank..........

Booked in next wed for detailed lokksee.

John

Oh dear - nothing wrong they said. all perfect. still get a misfire at low revs light throttle. They agreed something was amiss but what am I meant to check now?????

Coils are in a row of 3? at front of engine. Shall i try a hammer........

:wonder: :wonder:

John

Oh dear - nothing wrong they said. all perfect. still get a misfire at low revs light throttle. They agreed something was amiss but what am I meant to check now?????

Coils are in a row of 3? at front of engine. Shall i try a hammer........

:wonder: :wonder:

John

Hi John - I'm looking at these models at the moment, did you manage to get this resolved and what type of costs were you looking at?

Cheers!

Sounds like it might be a coil pack....

I think that these cars will still have the good old double-ended coil assembly, in this case a twin double-ended coil and a single double ended coil - so that means that they will have HT leads as the weak point - or duff plug.

I think that these cars will still have the good old double-ended coil assembly, in this case a twin double-ended coil and a single double ended coil - so that means that they will have HT leads as the weak point - or duff plug.

So his problem was likely to have been... cheap?