To change the spark plugs at Chevrolet Cobalt, perform these actions:
(1) Use the "10" head to uncover five bolts of the ignition cover.
(2) Remove the cover without removing the crankcase ventilation system.
3) Detach the connectors from the ignition plug.
4) With the help of the head "on 10" unscrew the retaining screws.
5. Remove the ignition (s).
(6) With a candle head, "16" out by candlelight.
7) Gently remove them from the candle wells.
(8) By becoming new candles and prolongation of candles, 25 Nm.
Set it all up by checking the compression of the ignition.