My car shake's when in idle

Question

hello i have a 2001 ford fiesta 1.3 freestyle 1299cc petrol about 2 days ago i had my engine tappings done to make my engine quieter all gone good but what i have noiced is when iam sat at the traffic lights my car seems to shake a little also when parked up with engine running. so i called the aa out they said no misfire found checked me spark plugs and fuel delivery all ok but he did advise me to get new spark plugs. so i got spark plugs but iam still getting the shakeing can any 1 help many thanks

Answer 1

123

Answer 2

bad plug wires.or one of the wires are crossed.

Answer 3

they may have disconnected a vacuum leak while performing the other work.. is the check engine lamp illuminated also?