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How To: Spark Plug Change (1 GR-FE)

Discussion in 'Technical Chat' started by chris4x4, Mar 16, 2009.

Page 5 of 116
  1. May 18, 2009 at 1:29 PM
    #81
    Keystone Designer

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    Keystone Designer Member

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    I just put in 6 Denso double platinum plugs quad electrode, gap'd at .044 at 78K miles... When I was finished, the check engine light came on. I double checked everything I did and it runs fine. The only suspicious thing I noticed is spark plug boot on number 5 is missing the rubber piece at the very tip, about 3/4 dia x 3/4 long. I am on my way to get the OBDII code. Are these plugs capable of causing a fault? I never used them before. Tonight I will try removing the negative battery lead and pressing the brake pedal...thanks for that tip.
     
    Keystone Designer, May 18, 2009
    #81
  2. May 18, 2009 at 1:30 PM
    #82
    chris4x4

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    chris4x4 [OP] With sufficient thrust, pigs fly just fine. Moderator

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    All the liturature I have read says to use the Nickle Denso plugs. I have heard of many people haveing issues when useing Platinum, or the like.
     
    chris4x4, May 18, 2009
    #82
  3. May 21, 2009 at 7:52 AM
    #83
    rb11701

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    rb11701 Oh yeah!

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    Is it easy to cross-thread the plugs? Or do you really have to insert them wrong and start to turn with some force? Is it right to assume that these would be similar to threading a thick bolt into a nut or something? I mean, it only goes in one way correct?
    That would be the toughest part for me, (not that I need to do this) threading the plug into an area that I cannot see and have to feel.
     
    rb11701, May 21, 2009
    #83
  4. May 21, 2009 at 8:03 AM
    #84
    chris4x4

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    chris4x4 [OP] With sufficient thrust, pigs fly just fine. Moderator

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    Its not to hard to mess up. Just be carfull. One thing I do when threading a spark plug in, is to make sure its in the hole, then rotate it backwards until I feel it "seat" into the threads. THEN thread it in by hand. It should go most of the way in by hand before needing the socket.
     
    chris4x4, May 21, 2009
    #84
  5. May 23, 2009 at 6:33 PM
    #85
    grantfire319

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    grantfire319 Well-Known Member

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    Replaced mine tonight using Denso's. Like its been mentioned on here hundred times, be sure to gap the "pre gapped" plugs. I got all mine to .44. It was the first time they have ever ben changed on there. The gap on the old ones went to .60. I guess the previous owner didn't do it.
     
    grantfire319, May 23, 2009
    #85
  6. May 28, 2009 at 8:33 AM
    #86
    Keystone Designer

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    Okay... I pitched the Denso double platinum plugs and installed NGK basic platinums, single electrode. Parts store didn't have OEM Denso's, I don't know if I regret it. I was able to buy one spark plug boot to pirate the rubber end off of it and install on wire #5. Now the engine has a "defibrillation" to it...about every 40 seconds it seems like it hesitates for a second or 2 and then back to normal idle. I suspect it might be that plug wire #5, NGK's or both. I use mid-grade gas. What should I look at next?

    Figured it out... bad spark plug wire. Toyota makes a beautiful OEM harness, definitiely worth the extra cost. Go Air Force!
     
    Keystone Designer, May 28, 2009
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  7. May 28, 2009 at 1:49 PM
    #87
    monoman

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    monoman Time to get dirty!

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    Did the spark plug change last weekend with my brother. I had never done these on this truck & these were the originals @ 70,000 miles. I could'nt believe how good they looked. I thought they were gonna be trashed!:eek: Got OEM plugs at Toyota by the way.....:D
     
    monoman, May 28, 2009
    #87
  8. May 30, 2009 at 3:59 AM
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    StandingCow

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    StandingCow Well-Known Member

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    Do you have to change the spark plugs in an 09 V6 at 30k or w/e? I was told by the salesman (haha yea I know) that you do not have to change these that often.

    And the manual's maint sched doesn't mention changing them this soon... I haven't read through this thread all the way yet, so sorry if someone already asked.
     
    StandingCow, May 30, 2009
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  9. May 30, 2009 at 5:27 AM
    #89
    chris4x4

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    chris4x4 [OP] With sufficient thrust, pigs fly just fine. Moderator

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    Im pretty sure the 09's are the same 30K interval as the others...Just have to check the manual..
     
    chris4x4, May 30, 2009
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  10. May 30, 2009 at 11:31 PM
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    StandingCow

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    StandingCow Well-Known Member

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    You are correct, same exact ones. I guess I will be using your guide in 29k! :)
     
    StandingCow, May 30, 2009
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  11. Jul 2, 2009 at 7:29 AM
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    crobee

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    crobee New Member

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    This is awesome.
    Great Forum.
    Thanks.
     
    crobee, Jul 2, 2009
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  12. Jul 2, 2009 at 7:30 AM
    #92
    chris4x4

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    chris4x4 [OP] With sufficient thrust, pigs fly just fine. Moderator

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    Welcome to TW! :)
     
    chris4x4, Jul 2, 2009
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  13. Jul 10, 2009 at 6:00 PM
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    rhett45acp

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    rhett45acp New Member

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    This is a great post! Thanks for all the work. I have two suggestions.

    I use dielectric grease on the coil for the plug electrical contact.

    I also use a compressor to blow the sparkplug hole out before removing. Then after removing I use a shopvac on the sparkplug hole. Anal retentive ? ??

    Best Regards
     
    rhett45acp, Jul 10, 2009
    #93
    AlCapwn likes this.
  14. Jul 10, 2009 at 6:42 PM
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    chris4x4

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    chris4x4 [OP] With sufficient thrust, pigs fly just fine. Moderator

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    Welcome to TW!!

    I usually do that as well. :)
     
    chris4x4, Jul 10, 2009
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  15. Jul 10, 2009 at 6:50 PM
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    mitiko

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    mitiko Well-Known Member

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    I think is not necessary have a cover the sparkplug have a cover and the engine also.
     
    mitiko, Jul 10, 2009
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  16. Jul 10, 2009 at 10:02 PM
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    RelentlessFab

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    RelentlessFab Eric @Relentless Fab Vendor

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    just broke 30K the other day. Now I just need to get to buy some plugs and follow your guide.
     
    RelentlessFab, Jul 10, 2009
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  17. Jul 13, 2009 at 6:39 PM
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    george3

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    george3 Well-Known Member

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    OK, I've read the whole post. I have a question. A engine is a engine. Why would you change a 6 @ 30 and a 4 @ 100? I have a 4 and I will not wait to 100 just because I am afraid the plug could get welded to the head with 100, then you break it in the head and you are F'd. Just MO.
     
    george3, Jul 13, 2009
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  18. Jul 13, 2009 at 7:24 PM
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    chris4x4

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    chris4x4 [OP] With sufficient thrust, pigs fly just fine. Moderator

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    Different ignition systems, plugs, resistance values, etc.
     
    chris4x4, Jul 13, 2009
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  19. Jul 14, 2009 at 2:24 AM
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    george3

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    george3 Well-Known Member

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    Thanks. I didn't know that. Is there somewhere I could read more on that? So I guess your plug recommendation would be different too, also I don't know that there is Anti-Sieze on the original plugs, so wouldn't it be prudent to change or put some Anti-Sieze on them B 4 100?

     
    george3, Jul 14, 2009
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  20. Jul 14, 2009 at 5:16 AM
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    chris4x4

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    chris4x4 [OP] With sufficient thrust, pigs fly just fine. Moderator

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    Im sure there is from the factory. The FSM states to use anti sieze, AND, being an Aluminum head, it makes sense.
     
    chris4x4, Jul 14, 2009
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