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Rough engine idle

PostPosted: Sat Jun 19, 2010 8:18 pm
by mahoney
Hi all. Just wanted to ask for some help. I have an 04 manual liberty wagon and when i stop an the car is idling you can feel the engine shake an it doesnt fill normal. I have changed the spark plugs this week an it is still doin it. Does any one have any suggestions it would much be appreciated.

Re: Rough engine idle

PostPosted: Sat Jun 19, 2010 11:57 pm
by jdm rsk
check for any vacuum leaks, air flow sensor or 02 (air/fuel) sensor other than that i am not sure

Re: Rough engine idle

PostPosted: Sun Jun 20, 2010 7:39 pm
by mahoney
cheers ill have a look at that.

Re: Rough engine idle

PostPosted: Sun Jun 20, 2010 7:55 pm
by Spec B Wgn
run some upper engine cleaner through it...

could be a dirty injector... did you gap the plugs correctly.

Re: Rough engine idle

PostPosted: Sun Jun 20, 2010 9:34 pm
by Drew
Check your air filter - my MY01 Forester (2.0L) used to do this, when I'd been out in the bush with lots of dust collecting in the filter...

Re: Rough engine idle

PostPosted: Mon Jun 21, 2010 8:44 pm
by mahoney
The new plugs where gapped accordingly. I checked the air box cause i thought that it could have not been closed. Any particular upper engine cleaner

Re: Rough engine idle

PostPosted: Mon Jun 21, 2010 9:11 pm
by jdm rsk
mahoney wrote:The new plugs where gapped accordingly. I checked the air box cause i thought that it could have not been closed. Any particular upper engine cleaner

subaru

Re: Rough engine idle

PostPosted: Tue Jun 22, 2010 8:42 am
by mwboom
clean map sensor

Re: Rough engine idle

PostPosted: Wed Jun 23, 2010 7:42 pm
by mahoney
where bouts is the map sensor located?

Re: Rough engine idle

PostPosted: Wed Jun 23, 2010 8:22 pm
by teK--
Front passenger side of the air chamber, from what I remember.