E36 318ise Auto (M40) judder

Yeah, i'll update you when i eventually get to the garage, been another day from hell today but i'll get there in the end...

Thanks for all the help fella's.

FOUND IT!

Now don't I just feel a pratt? 9 times out of 10 erratic idles on these cars seem to come from vac leaks or air intake probs of some sort, and i've spent that long focussed on that line of thinking that the problem has eventually more or less jumped up and bitten me on the backside!

I started to notice a faint whiff of petrol with the heater on whilst driving, yep, you guessed it!.. leaking injector, pound to a penny thats whats making her spluter.

Off to the garage tomorrow, methinks.

Have you changed the plugs?? and was it missing before you changed the plugs??..You could have a dodgy replacement plug its known to happen and dont forget the leads either.

Plus the 'missing' might be down to a blocked/worn fuel injector so dont think the worse yet.

I would like to add that Slick 50, IMO is NOT recommended.

They are in court at the moment for misrepresentation and mis selling and they have had a lot of payouts for engines they have knackered. I saying that I have also heard good reports as well so it's up to you.

To add to that that the clicking you hear from the head could be clogged injectors, when they are dirty/old the ball bearings inside can tick and can sound like noisy tappets.

Rob

neileg wrote: My money is on an air leak, possibly via the servo, but any of the hoses could do it. Also you could have dirty injectors. Have you tried some injector cleaner?

Ref the air leak theory; surely if there was a vac leak, the problem would be constantly occuring from cold, not just when the engine is up to normal running temp?...

I'll give the injector cleaner a try if all else fails though.

Cheers.

Doive,

Thanks for that, i'm going to rule that one out from preliminary investigations, initially wanting to rule out a transmission fault as i'm fairly new to automatics and must admit to not knowing a great deal about them, i've tried pulling up at junctions/lights in N or P without the footbrake or handbrake in use and still the problem occurs.

Still going ahead with the oil/filter change and the slick 50 tomorrow, see if this sticky tappet has anything to do with it, but any and all other suggestions most welcomed at this stage.

Thanks again.

Yep, ECU was reset after the check. I've never had a warning on the dash about anything though, theres the thing...

The ICV reading was a little on the high side, but still within its accepted range, hence no fault code thrown up on that one.

Definitely not an O2 sensor we know that much as well, and i've systematically been through intake hoses for splits and tears and they're all okily dokily, no probs with the exhaust either (its virtually new).

While I had my head under the bonnet listening to it run when its been warmed up (first real opportunity i've had) i've picked up on the tappets making a bit of a racket (not audiable from inside the car), so i'm going to change the oil and add some slick-50 tomorrow as well as a new oil filter and give it a blast, see if that improves matters any.

I've got a new set of plugs to go in tomorrow as well and i'll be giving the throttle body a clean up and renewing the gaskett, all just as a matter of course but that aside if i don't have any joy tomorrow,  i'm well and truly stuck.

Heeeeeeeeeeeeeeeeeeeeeeelp!

The plot thickens...

Been for the 'plug in' and its thrown up an 82 (Undocumented)

Starting not to like this car.

born-slippy wrote: Just had a check for prices for icv's and they aint cheap (£100) so i would certainly get your car checked before forking out any money

Damn, didn't realize they carried such a hefty pricetag.

I'll get it on to a specialist next week and run codes, see whats what, then take it from there.

Thanks again.