A bad spark plug will not ignite the air-fuel mix in the cylinder, resulting a faulty engine run, increased consumption and lowering performance.
So, if you’ve decided to change a faulty spark plug on your Toyota Celica or just replace all of them with aftermarket performance ones, all you need is the correct replacement spark plugs and a socket ratchet with extender. Here are the steps:
Let the engine cool
Remove the plastic engine cover. There is a bolt on the right holding it in place
Remove the four bolts on the coil pack
Disconnect and remove the four coils
Unscrew the bolts from the coil rack an remove it
Using an extender, unscrew the spark plugs and remove them
Put the new spark plugs in and carefully screw them back without damaging the thread
Google News