Ignition coil and spark plug replacement

2009 TOYOTA COROLLA
154,000 MILES • 1.8L • 4 CYL • 2WD
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ANTHONYWILSON1
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My car recently had a rough idle and after checking the Check Engine light at AutoZone, they told me that I'd have to try and replace them. I don't have the money to go to a mechanic and have them do it for me so I'm trying to do it on my own.

Will something happen to my car if I disconnect the battery to do this? And any tips to try and make this easier on myself?
Apr 22, 2022 at 3:08 PM
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ASEMASTER6371
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  • 52,796 POSTS
Good afternoon,

No need to disconnect the battery. Just remove the four connectors for the coils and remove the plugs.

I attached the procedure below for you.

Roy
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Apr 22, 2022 at 3:17 PM
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ANTHONYWILSON1
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Thank you so much! Though i am worried about the torque since I don't have that kind of wrench on me. Would i have to get a digital display wrench or is there a different way?
Apr 22, 2022 at 6:40 PM
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ASEMASTER6371
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You can rent one at a parts store.

Roy
Apr 22, 2022 at 6:55 PM