DIY guide: IS250 Spark Plug change
09-28-11, 06:45 AM
#17
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Join Date: Jan 2011
Location: GA
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Do you have a 250 or a 350? Because from what I can tell, the upper intake manifold on the 250 is different, and it isn't possible to remove one or more of the ignition tubes with the IM in place.
10-22-11, 05:33 PM
#23
Thanks for this IS250 spark plug R&R write up. Everything is accurate and knocked this out in 2 hours incuding breakfast.
A couple of things to note. I don't think the factory used any thread lube on the plugs during assembly. I thought 3 spark plugs were stripped they were so hard to back out. I replaced the rubber gaskets at the bottom of the intake runners. The old ones weren't in bad condition, but the new ones had more compression/were more spongier.
Thanks again for this write up and I wouldn't pay the dealership to do this simple service.
A couple of things to note. I don't think the factory used any thread lube on the plugs during assembly. I thought 3 spark plugs were stripped they were so hard to back out. I replaced the rubber gaskets at the bottom of the intake runners. The old ones weren't in bad condition, but the new ones had more compression/were more spongier.
Thanks again for this write up and I wouldn't pay the dealership to do this simple service.
02-02-12, 08:18 AM
#24
Driver School Candidate
I just got mine replace by a buddy, $200 including spark plugs. Fair price? IDK, dealer was quoting $596 but i got the NGK iridium IX, should there be anything I am noticing, maybe some more pick up or what? Thanks
02-08-12, 05:58 PM
#28
Advanced
Thank you for the write up. It's insane all the work required just to change the plugs! Who designed it? I expected easier maintenance from a Japanese car.
