V6 stalling/poor running

[stuvaux]

hello guys

this problem started two days ago and is now getting worse

at first the car started to run badly at idle speed
then the problem went as quickly as it had appeared

then it came back again!  when it happens, sometimes it stalls. then i restart it. it stalls....restart....stalls....
also, it seems there is a lack of power as you pull away. the revs take a while to pick up, then it seems flat for a bit, under 3000 revs

any ideas on where to start looking would be very much appreciated!

thanks,   stu

[TheBoy]

Any EML, if not, does EML come on with ignition?

[stuvaux]

no EML, but light does come on with ignition, and go off as normal

i'm sorry about the explanation of the problem - its just a tricky one to put into words!!

i did clean the IAC valve the other day - it was fine for two days after that - then the problem started - could that be related?

thanks,   stu

[TheBoy]

no EML, but light does come on with ignition, and go off as normal

i'm sorry about the explanation of the problem - its just a tricky one to put into words!!

i did clean the IAC valve the other day - it was fine for two days after that - then the problem started - could that be related?

thanks,   stu

How did you clean (carb cleaner)?  Did you oil afterwards?

The power loss could be related to multirams, check they work properly as well...

[stuvaux]

yes, cleaned with carb cleaner, but didn't oil afterwards - should i have, and what with/how?

how do i check the multiram is working properly?

stu

[TheBoy]

yes, cleaned with carb cleaner, but didn't oil afterwards - should i have, and what with/how?

how do i check the multiram is working properly?

stu

A light oil, 3-in-1 etc...

[TheBoy]

When it stalls, is it a sudden stall, or does the engine hunt a bit?

[stuvaux]

yes, engine hunts for a while, then stalls if i dont,t rev/pull away

[stuvaux]

is wd40 any good on the IAC valve?
dont think i've got any 3 in 1 oil

[Auto Addict]

is wd40 any good on the IAC valve?
dont think i've got any 3 in 1 oil

WD40 is not a true lubricant.

[bestseany]

Is your problem happening when you're running on petrol or LPG?

[stuvaux]

its happening with both fuels

[TheBoy]

is wd40 any good on the IAC valve?
dont think i've got any 3 in 1 oil

Not really. A light oil is what you are after, and just 2 or 3 drops...

[stuvaux]

ok   i'll try that

how about the multiram?   whats the best way to check if it is working as it should be?

thanks

[TheBoy]

The multiram won't cause stalling, but will affect power at different rpm.  Fix the stalling issue first...

Also, air intake leak may also give stalling/uneven idle symptoms...