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 Re: Spark Plugs
[Re: hupptoy]
#702922
03/07/06 08:19 PM
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Anonymous
Unregistered
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I know when I changed plugs on my 3.4 at 60K, I found that the dealer *forgot* to change them at 30K (don't use that dealer anymore).
hupptoy
Same thing happened to me! I had the 60k service done in case I sold the truck I'd have a record. At 95k it started missing badly which scared the bejeezes out of me. I decided to do the service myself and I found that the non-platinum plugs lookedg great but the platinums looked like hell because they had a 100k miles on them! Just goes to show you that if you want something done right you have to do it yourself. BTW, is that 3 plugs platinum, 3 plugs non-platinum just a cost savings measure? Seems silly.
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Re: Spark Plugs
#702923
03/07/06 08:39 PM
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Joined: Oct 2005
Posts: 1,287
Body Damage is Cool
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BTW, is that 3 plugs platinum, 3 plugs non-platinum just a cost savings measure? Seems silly. Seems like I wouldn't go back there.........
-1986 TOYOTA
22R
ZUK coil rear
Torqued T-Bars
Marlin HD clutch
Newly rebuilt!! Runnin' like a champ!
AZTTORA #492
TLCA member
"I hear there's rumors on the Internets that we're going to have a draft."
--George W. Bush
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Re: Spark Plugs
#702924
03/08/06 12:44 AM
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Joined: Jan 2006
Posts: 192
Wheeler
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I decided to do the service myself and I found that the non-platinum plugs looked great but the platinums looked like hell because they had a 100k miles on them! Just goes to show you that if you want something done right you have to do it yourself.
BTW, is that 3 plugs platinum, 3 plugs non-platinum just a cost savings measure? Seems silly. I have heard of different brands on each bank of the 3.4 (mine had Denso on one side and NGK on the other), but they were all non-Platinum. I have never heard of Toyota using Platinum on one bank and non-Platinum on the other though. What year and motor was this? hupptoy
99 4Runner SR5 3.4 Auto 4x4, 32" LTX A/T, 154K
93 Toy x-cab 22RE 5-spd 4x4, 31" LTX A/T, 150K
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Re: Spark Plugs
[Re: Mark in AZ]
#702926
03/10/06 03:03 PM
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Joined: Mar 2006
Posts: 21
OP
Need a Spot
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Well I tried the .031 gap. WRONG. I tried the .044 gap. RIGHT
The manual for the 04 2.4L is INcorrect. .044 is correct.
Yes NGK and Denso, spec. the gap at .044.
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Re: Spark Plugs
#702927
03/10/06 09:17 PM
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Joined: Jan 2006
Posts: 192
Wheeler
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I didn't know either but if you look at the maintenance schedule it says to change non-plat every 30k and all plugs at 60k. That is also echoed in the maint section on this site. http://www.4x4wire.com/toyota/maintenance/tacoma_4runner_30k/maintenancep3.html#plugsThe only thing I can figure is that the plugs under the coil packs get a slightly better spark so perhaps they figure they could get away with non-plat on that bank? Are you sure that you had 3 platinum and 3 non-platinum? Or did you just have the different brands (NGK/Denso)? The maintence schedule is a generic version for all Toyotas of that year, that is why they list both Platinum and non-Platinum plug change schedules. And the link only seems to mention the non-platinum that the trucks use. I think a lot of their cars had the platinum and their trucks had the non-platinum. hupptoy
99 4Runner SR5 3.4 Auto 4x4, 32" LTX A/T, 154K
93 Toy x-cab 22RE 5-spd 4x4, 31" LTX A/T, 150K
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Re: Spark Plugs
[Re: hupptoy]
#702928
03/12/06 02:42 PM
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Joined: Sep 2003
Posts: 146
Wheeler
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For those without manuals, you should also be able to find this info on a sticker under the hood.
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Re: Spark Plugs
[Re: bard]
#702929
03/12/06 03:21 PM
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Joined: Mar 2006
Posts: 21
OP
Need a Spot
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The Manual does say .031. The correct gap is .044.
I know, I have tried .031. This was on #90919-01164 aslo listed as K16R-U11. These are the O.E.M.plugs that are in the truck, when you purchase it.
I just installed yesterday, NGK BKR5EIX-11. These are Iridium center electrode, with a taper cut ground electrode.
I saw NO reason to change plugs every 30K miles. If, you have done this on a 2.4L, you know it is not a piece of cake.
The air intake passes over the two center plugs. It has to be taken apart to get to them.
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Re: Spark Plugs
[Re: ttus]
#702931
03/14/06 02:29 PM
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Joined: Sep 2003
Posts: 146
Wheeler
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I saw NO reason to change plugs every 30K miles. If, you have done this on a 2.4L, you know it is not a piece of cake.
The air intake passes over the two center plugs. It has to be taken apart to get to them.
I don't blame you. As long as it's runs fine and the MPG is normal, why bother. I bought my 96 used with ~120k miles on it. I changed the plugs a couple of months later and found that they were the originals. The center electrodes were worn to a V because of the twin side electrodes. Yet my MPG didn't budge a bit afterwards. I guess I won't bother replacing them ever again <img src="/forums/images/graemlins/smile.gif" alt="" />
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