IS F (2008-2014) Discussion topics related to the IS F model

Spark Plug replacement DIY? 2008 ISF

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Old 01-24-12, 09:44 PM
  #16  
Vroomin350
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I need to do this too as I am coming up to 59K, lobux would you mind elaborating a little more on the valve lash ? I want to change the plugs and if your saying this should be taken care of too I want to do it.

Thanks
Old 01-24-12, 11:10 PM
  #17  
lobuxracer
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It's all in this thread.
Old 01-25-12, 04:44 AM
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MRxSLAYx
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Originally Posted by anxiouz
" not really that difficult" and 1.5+ hour job don't equate in my opinion. Gapping and swapping plugs in most cars takes like 15 minutes.
It takes me nowhere near 1.5 hours. Remember, im not a lexus tech
Old 02-01-12, 12:09 PM
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itsmike177
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Update: just changed the spark plugs.

I was going to take pictures to document it, but didn't think there is a need. It's pretty obvious on what needs to be moved aside to access the spark plugs and coil packs.

Just a couple of tips:
- Front spark plugs on both sides are easily accessible, no problems.
- Passenger side, definitely need to remove the battery to access the last 2 plugs.
- Driver side, will need to unbolt a fuse box and move it aside to remove the 3 coil packs closest to the firewall. It makes it easier to access as well.
- Tools: I used a magnetic spark plug socket with a built in 6inch swivel + universal joint + 6 inch extender. 10mm socket to remove the coil packs, battery nuts, and fuse boxes that were in the way. Extra long needle nose pliers to remove the connectors from the coil packs. I could not remove them by hand by depressing the tab (confined space.) Torque wrench for the sparkplugs.

Overall, took me 2.5 hours. Not difficult, just the lack of space and figuring out how to access the plugs makes the whole process take awhile.
Old 02-01-12, 12:14 PM
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UCrazyKid
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^^ Mike, thanks for the details, very helpful. Are the plugs "pre-gapped"?
Old 02-01-12, 12:40 PM
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Originally Posted by UCrazyKid
^^ Mike, thanks for the details, very helpful. Are the plugs "pre-gapped"?
All the information I received were that the plugs were pre-gapped. So I did not gap them again. I Purchased part number FK20HBR11, which are the same as the OEM plugs that came out. I believe if you purchase genuine Toyota OEM, it comes pregapped (someone correct me if I am mistaken.) I compared the gaps on the new plugs and they were uniform for all 8 (by eyeing it.)
Old 02-01-12, 12:59 PM
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Originally Posted by itsmike177
Update: just changed the spark plugs.

I was going to take pictures to document it, but didn't think there is a need. It's pretty obvious on what needs to be moved aside to access the spark plugs and coil packs.

Just a couple of tips:
- Front spark plugs on both sides are easily accessible, no problems.
- Passenger side, definitely need to remove the battery to access the last 2 plugs.
- Driver side, will need to unbolt a fuse box and move it aside to remove the 3 coil packs closest to the firewall. It makes it easier to access as well.
- Tools: I used a magnetic spark plug socket with a built in 6inch swivel + universal joint + 6 inch extender. 10mm socket to remove the coil packs, battery nuts, and fuse boxes that were in the way. Extra long needle nose pliers to remove the connectors from the coil packs. I could not remove them by hand by depressing the tab (confined space.) Torque wrench for the sparkplugs.

Overall, took me 2.5 hours. Not difficult, just the lack of space and figuring out how to access the plugs makes the whole process take awhile.
after reading this I'm still thinking my 170 plus loaner car was a great deal! Good write up!!
Old 02-01-12, 05:12 PM
  #23  
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Originally Posted by itsmike177
All the information I received were that the plugs were pre-gapped. So I did not gap them again. I Purchased part number FK20HBR11, which are the same as the OEM plugs that came out. I believe if you purchase genuine Toyota OEM, it comes pregapped (someone correct me if I am mistaken.) I compared the gaps on the new plugs and they were uniform for all 8 (by eyeing it.)
The 11 at the end of FK20HBR11 means they have a 1.1mm gap from the factory.
Old 02-01-12, 05:47 PM
  #24  
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Yes, in hindsight, I should have just brought it to a dealer.

Plugs were $100 total. If I still have the car at 120k miles, it will be to the dealers as I watch them do it. There's always that "back in my mind" that the techs never change the spark plugs and they just charge you for it, so I decided give it go and know that was really done. Plus I guess the satisfaction that I did at least something on the car myself.


Originally Posted by Mitch08ISF
after reading this I'm still thinking my 170 plus loaner car was a great deal! Good write up!!
Old 04-11-12, 08:26 PM
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I want to try the E3 plugs. Anyone familiar with them? Can't imagine them not being better at least a little bit based on my limited research.
Old 08-17-15, 10:10 AM
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Back from the dead, anyone using one step colder plugs? If so which ones, I am only at 70,000km but I am swapping my intake for a ported one this weekend so I might as well do plugs while I am in there. N2O is a definite future possibility so I was thinking of going one step colder now.
Old 10-24-15, 01:14 AM
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Originally Posted by Sylvan
Back from the dead, anyone using one step colder plugs? If so which ones, I am only at 70,000km but I am swapping my intake for a ported one this weekend so I might as well do plugs while I am in there. N2O is a definite future possibility so I was thinking of going one step colder now.
was wondering about that plug part number also
Old 02-14-16, 02:06 PM
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Old thread, I know... really want to change the spark plugs while waiting for my ecu to come back from PA (sent 2/9 via usps "2-day priority mail", yeah right).

Could anyone out there advise the torque spec for the plugs?

Thanks guys in advance.

Dennis
Old 02-14-16, 08:25 PM
  #29  
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Originally Posted by tas02
Old thread, I know... really want to change the spark plugs while waiting for my ecu to come back from PA (sent 2/9 via usps "2-day priority mail", yeah right).

Could anyone out there advise the torque spec for the plugs?

Thanks guys in advance.

Dennis
I think 20 or 25 ft lbs.
Old 02-15-16, 05:08 AM
  #30  
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thats pretty high most of the time its around 15 ft lbs


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