Hey All
just asking a question for a friend
He has a vy ecotec v6, it is stock be sides mace high ratio rockers, plenum spacer and cat back exhaust.
It is idling really rough and then when travelling 60 up hill the car seems to lug and gets a violent shudder,
also the gear changes seem to be drawing out,
so far it is being worked on the folowing has been adjusted:
-Full engine diagnostics
-New Oxygen sensors
-New Spark plugs and leads
-Transmission service and new oil
-Fuel injection nozzles all flushed, cleaned and serviced
-New throttle body and posistion sensors

So far he has spent in excess of $1000 With the car not getting any better.
Any ideas or suggestions would be appreciated
Cheers Kohbee