Hi. I have a Zafira with an A/T 1800 engine.
My problem is that the engine does not have a smooth idling. It feels like it is going to die when at idle and has a very rough run when accelerating. the engine feels like an old boat when it runs. Very rough.
I had the fuel filter replaced in the hope that I have a clogged filter. It has been changed now but it still runs roughly.
What Will I do??? change the spark plugs? get a fuel injector cleaner??
Please Help me!! thanks for any input.