I'm driving a Audi A4 1.8T 2007. the car is not pulling and its shaking a bit. I changed the spark plucks. still the same and fuel consumption is higher. what can be wrong?
Does it shake when engine is idling or when you apply your brakes or driving a tcertain speeds ? As far as fuel consumption when was the last time you changed the air filter, replace fuel filter, clean throttle body, put in some fuel injector cleaner to gas tank.
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