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Scottydog
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PostSubject: Spark Plugs   Wed Jun 26, 2013 9:15 pm

I changed the plugs in my FJ this past weekend. I replaced them with OEM plugs. All the old plugs seemed OK...with the exception of the one closest to the firewall on the driver's side. It had a strong smell of gas.

Is this something I should be concerned about? Or can I assume the new plug will "fix this"?

The FJ is running fine as always...

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PostSubject: Re: Spark Plugs   Wed Jun 26, 2013 9:40 pm

Could be a few things.  Plug could've been bad, and not fully combusting the gas.  Or the injector is messed up.  The smell of gas though is fairly normal.  Did the plug look the same as the others?  Was it wet?
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PostSubject: Re: Spark Plugs   Thu Jun 27, 2013 9:14 am

The plug was a bit darker than the others but did not appear to be "wet".

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Bilstein 5100s Front, Bilstein 5125 Rear Shocks, OME 895 Rear Springs Rear, 285/75/17 Nitto Terra Grapplers, Baja Utility Roof Rack, Mombasa RTT, OEM Brush Guard, Custom Rock Sliders (Defensive Designs), BMC (Defensive Design), Ricochet Skids, All-Pro Ultimate Rear Lower Control Arms, All-Pro E-Locker Guard, Volant Cold Air Intake, FlowMaster 40 Series, Hot 12v Outlet, Custom FJammer, LED Dome Lights, MPac Rear Door Storage, Orange Boxx Custom P.S.D. Rear Side Storage, Custom Rear Storage Unit, Blacked-out Emblems, Scuba Driver Mod, Smittybilt Air Compressor, Midland 75-822 CB with 4' Firestik on Bandi Mount, Sylvania Silverstar Ultra Headlights, Metal-tech Tube Doors
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MadToy
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PostSubject: Re: Spark Plugs   Thu Jun 27, 2013 10:09 am

Scottydog wrote:
The plug was a bit darker than the others but did not appear to be "wet".

I wouldn't worry about it.
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PostSubject: Re: Spark Plugs   Sat Jun 29, 2013 11:49 am

did you plugs have one brand on one side and then another brand on the other... heard they came from the factory that way!
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PostSubject: Re: Spark Plugs   Sat Jun 29, 2013 12:55 pm

How old were the plugs?

And yes - plugs often come different for each side of the motor from the factory. That isn't a problem.
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Scottydog
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PostSubject: Re: Spark Plugs   Sat Jun 29, 2013 12:57 pm

They were all Denso...my FJ has 112k and I'm not sure if they have ever been changed.

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Bilstein 5100s Front, Bilstein 5125 Rear Shocks, OME 895 Rear Springs Rear, 285/75/17 Nitto Terra Grapplers, Baja Utility Roof Rack, Mombasa RTT, OEM Brush Guard, Custom Rock Sliders (Defensive Designs), BMC (Defensive Design), Ricochet Skids, All-Pro Ultimate Rear Lower Control Arms, All-Pro E-Locker Guard, Volant Cold Air Intake, FlowMaster 40 Series, Hot 12v Outlet, Custom FJammer, LED Dome Lights, MPac Rear Door Storage, Orange Boxx Custom P.S.D. Rear Side Storage, Custom Rear Storage Unit, Blacked-out Emblems, Scuba Driver Mod, Smittybilt Air Compressor, Midland 75-822 CB with 4' Firestik on Bandi Mount, Sylvania Silverstar Ultra Headlights, Metal-tech Tube Doors
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PostSubject: Re: Spark Plugs   Sat Jun 29, 2013 1:04 pm

Scottydog wrote:
They were all Denso...my FJ has 112k and I'm not sure if they have ever been changed.

 They should be changed, at least on my 07, every 30k. I've fouled plugs at 32k.
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PostSubject: Re: Spark Plugs   Sun Jun 30, 2013 6:15 pm

My 07 is the same as SEO's and I just changed my plugs today.  All were clean and dry with none smelling like gas.  I'm guessing that you shut the truck off mid-cycle on one cylinder.  The fuel injector sprayed some fuel but the truck was off before it could ignite it.  Of course if you're supposed to change your plugs every 30k like the 07s, your plug could've been cooked and not firing very well.  Have you noticed it running smoother now?
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2011TRDIceberg
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PostSubject: Re: Spark Plugs   Mon Jul 29, 2013 9:02 am

I was told by the dealership last time I was there I needed to change my plugs, I have about 47k on mine now. But I have read the "newer" FJ's (mine is a 2011) can go until 120k before needing a change. I read in the maintenance schedule it says at 120k. I plan on changing mine at like 60k maybe unless something happens before then. The "newer" FJ's also come from factory with the iridium type plugs which have a longer life.
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PostSubject: Re: Spark Plugs   Mon Jul 29, 2013 9:56 am

Funny how the stealership advises you to change at such a low mileage yet TOYOTA says no problem til well over 100k...
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PostSubject: Re: Spark Plugs   Mon Jul 29, 2013 2:02 pm

Check the gap on the plugs. What is the gap of the odd ball plug vs the others. How long had the truck been sitting when you changed your plugs?
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