is she dying?

[noney82]

over the past few days my 91 325i has developed a strange fault. on tick over she sounds like she is going to cut out but the revs on the counter seem to stay the same the dont move when it is doing it. i can leave it running and its ok it doesnt cut out but its doing my head in cos the car sometimes shakes and i look like a knodding dog, an ideas anyone????

[stonesie]

sounds like its misfireing, check the rotor arm and cap first. If thay are ok then leads and plugs are next in the chain

[FBF]

pinking maybe?

[noney82]

ok thank you i'll have a look, is it chains on these models?

[noney82]

whats pinking?

[FBF]

http://en.wikipedia.org/wiki/Engine_knocking have a read of this it explains it fairly well. its timing related

[cliffybabe]

id check the air flow boot (IC boot) for any cracks etc

[stonesie]

ok thank you i'll have a look, is it chains on these models?

Nope its a cambelt


I wouldnt have thought it would be pinking/detonation at idle...... though i have been wrong before

[noney82]

ok i let you know what i find thank you all for the advice

[Jos]

wouldn't have thought pinking either, not from cold anyway unless the ECU is daffy. check your fuelpump connection too underneath the back driverside seat, these are common failure points leading to bad running as well

[Brianmoooore]

Air intake boot for splits, distributor cap/rotor arm (not leads - they last for ever), DME and/or fuel pump relays or dying fuel pump, in that order.

[noney82]

ok thank you all im going to look into the problem today when i get a few mins to meself as iv got the bloody god kids to look after at the moment

[noney82]

found the problem to be a split in my air intake boot just after my cone filter i need to get a bracket to fix it to the orig holes to stop any more damage any ideas guys?

[Brianmoooore]

Obvious solution is to put the standard air box back and feed your engine properly filtered air, bur the split in your intake boot is nothing to do with the cone filter - it's just normal deteriation of a rubber part with age.
Very common.
New one is around 11 pounds, depending on the exact spec. Give the dealer the last seven digits of your VIN.

[noney82]

it is cos of the cone its not fixed in place so as im driving the weight if it and the air mass meter housing is causing it to move up and down hance the rip so i think i will put the standared one back opn for the time being untill i get a proper fixing bracket to hold it all in place the same as the standard one is. so you say i can get one from main dealers brianmooore cheers mate

[Morat]

I got one from the dealers for not much. About 14 quid or so, well worth it over a breaker part for the peace of mind imo.

[noney82]

i'll give the dealers a bell then thank you all