Hi all
Trust all is well.
My cars idling suddenly changed. On cold start (cold engine) for when car stood for overnight or 8 hours moreor less during work day.
It will idle fine at 1200 rpms and as engine warms up and revs begin to drop to 800rpms it will ilde fine and then suddenly start to spike again to 1200 and drop back to 800.
This continues for another 30odd seconds till it idles normally at 800.
I did a visual inspection on the vacuum line that runs from plenum but couldn't see a fault.
What could be causing this other than perhaps a vacuum leak?
Car is the st225 2.5l.
Kind regards
Sent from my F8331 using Tapatalk
Trust all is well.
My cars idling suddenly changed. On cold start (cold engine) for when car stood for overnight or 8 hours moreor less during work day.
It will idle fine at 1200 rpms and as engine warms up and revs begin to drop to 800rpms it will ilde fine and then suddenly start to spike again to 1200 and drop back to 800.
This continues for another 30odd seconds till it idles normally at 800.
I did a visual inspection on the vacuum line that runs from plenum but couldn't see a fault.
What could be causing this other than perhaps a vacuum leak?
Car is the st225 2.5l.
Kind regards
Sent from my F8331 using Tapatalk