Alright so I changed all Spark plugs they were all black but my car still feels sluggish right after every shift, I'm stuck on what it could be. Car just got a new Fuel Pump, new flywheel, new clutch and I changed the transmission. The previous owner of the car said the transmission was new so I decided to put it on since it was already off from changing the clutch. Could this be cause by my transmission?
|