How hard I should try to remove spark plug - Toyota Yaris Forums

mf4361 · 03-29-2013, 06:04 PM

I finally got a chance this afternoon to change the plugs out. I used a 5/8" spark plug socket, 6" extension and a ratchet. It took a little more force than I expected to get it out. (So first thought is it might have seized up) But as suggested above a firm turn on the ratchet break it loose and it got out easily.

The old plugs are actually still in pretty good shape after 126000km (and they drove well) but its good preventive maintenance so I don't get stranded on the roadside when the time comes

After installing the new plugs, engine starts better, the starter clicks 2-3 times and it starts (compared to 4-5 clicks before). I don't see a big improvement in Performance/economy. However, Idle seems to be quieter and at high rev (>4500) it definitely sounded smoother.

Thanks for all your help and advice!!

https://www.dropbox.com/s/uyvsib1ctv...329_164906.jpg

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03-29-2013, 06:04 PM	#20
mf4361 Drives: Yaris Sedan Join Date: Dec 2012 Location: SK Posts: 43	I finally got a chance this afternoon to change the plugs out. I used a 5/8" spark plug socket, 6" extension and a ratchet. It took a little more force than I expected to get it out. (So first thought is it might have seized up) But as suggested above a firm turn on the ratchet break it loose and it got out easily. The old plugs are actually still in pretty good shape after 126000km (and they drove well) but its good preventive maintenance so I don't get stranded on the roadside when the time comes After installing the new plugs, engine starts better, the starter clicks 2-3 times and it starts (compared to 4-5 clicks before). I don't see a big improvement in Performance/economy. However, Idle seems to be quieter and at high rev (>4500) it definitely sounded smoother. Thanks for all your help and advice!! https://www.dropbox.com/s/uyvsib1ctv...329_164906.jpg