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Spark Plug Change for GS300

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Old Feb 3, 2011 | 10:20 PM
  #91  
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whats a good spark plug that does not kill the wallet?
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Old Feb 4, 2011 | 03:12 AM
  #92  
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OEMs or Iridiums
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Old Mar 27, 2011 | 03:50 PM
  #93  
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TORQUE MASTER PLUGS, I just did a major tune up on my gs300 and take it from me there CRAP. My car is running really bad now,I got a cel code po300 now so imma go back with the ngk's I took out...

Last edited by byoung1; Mar 27, 2011 at 03:56 PM.
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Old May 5, 2011 | 10:40 PM
  #94  
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i used the Denso (5303) IK16 Iridium plugs and they are working out great for me so far, got them on Amazon for $8.25 a piece
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Old Jun 6, 2011 | 04:41 AM
  #95  
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Got mine HERE Not the cheapest but work great.
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Old Jun 6, 2011 | 07:34 AM
  #96  
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I know everyone, including Lexus, says to run Iridium plugs, but it still says to use a double platinum plug under the hood. I use the Denso PK16TR11, they are cheaper, they run just as well as Iridiums, and I'll be darned if they don't last nearly as long. If it ain't broke, then why fix it. My money will go towards double platinum plugs until the car refuses to run with them, which I don't think will ever happen.

Last edited by RoboRam12; Jun 6, 2011 at 07:37 AM.
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Old Jun 20, 2011 | 08:03 PM
  #97  
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I forgot which coil packs go in which location. Can someone give me some insight of where the coil pack and plugs go?


so far i have it has

from front to back

Plug Coil Pack Plug Coil Pack Plug Coil pack
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Old Jun 21, 2011 | 09:31 PM
  #98  
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Figured it out from the picture a few posts back.
here are some pics.
After tearing down everything to get to the spark plugs I noticed oil that leaked from the valve cover gasket. So went ahead and changed the gasket as well. About 29.99 from Autozone.
The car is a 2000 GS 300 with 95k
I replace the plugs with NGK Irridium (they work great)

Problems I encountered
1. Clips on spark plug wire break very easily (as mentioned before, but can still be placed back on without the clip part that breaks)
2. Forgot where to number all plug wires before removing from plugs
3. Alot of dirt and pieces of the plug wire in the spark plug cylinders
4. In my case oil was leaking at the back of the valve cover gasket so I had to replace gaskets
5. Needed help on location of critical locations where the gasket sealant should go.
6. You don't have to remove the whole intake manifold just half of it and lift it high enough for the valve covers to clear. (4 bolts on top 2 nuts under neath. I had to use and open ended wrench for the nut closer to the firewall)
7. When reinstalling I forgot to place the bottom (coolant?) hose to the throttle body. Make sure to attach the rear bottom coolant hose before bolting up.
8 Rear bolt (on valve cover and plug wire) was not as easy to tighten but still very doable with angle socket


PM me if you need any help
Here are some random pictures I took along the way (not in order)

















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Old Sep 12, 2011 | 11:06 AM
  #99  
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im about to change my plugs tomorow. just wondering since we are moving the intake manifold out of the way, do we change out the intake manifold gasket as well? i was told by a mechanic it would need to be done as well
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Old Sep 18, 2011 | 05:23 PM
  #100  
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where do i find dual ground electrode spark plugs??
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Old Nov 9, 2011 | 07:46 AM
  #101  
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it took about 2 hours to do
i was getting pissed off with ever thing that i need to take off and then the coil pack did not want to come off.
then i missed the firing order.
found some oil in the bay but i was not worried about it so much.

when doing this, i would recommend take your time. get the spark plugs and wires....
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Old Nov 18, 2011 | 04:58 PM
  #102  
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Originally Posted by byoung1
torque master plugs, i just did a major tune up on my gs300 and take it from me there crap. My car is running really bad now,i got a cel code po300 now so imma go back with the ngk's i took out...
hey i did a major tune up on my 01 gs3 and used ngk wires with torque master plugs everything worked out good still running the plugs but thinking bout changing them out for E3 plugs my buddy used those in his is3 and you really can tell a difference....
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Old Nov 30, 2011 | 12:00 PM
  #103  
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Originally Posted by byoung1
hey i did a major tune up on my 01 gs3 and used ngk wires with torque master plugs everything worked out good still running the plugs but thinking bout changing them out for E3 plugs my buddy used those in his is3 and you really can tell a difference....
E3 Plugs have been scrutinized a lot for their exaggerations on horsepower increase claims and etc. A lot of those dyno results can be "made" to reflect those increases with the right skills on the dyno.

I've stuck with the OEMs or Iridiums without any issues. It's just kind of funny when you have guys looking for insane horsepower increases from a spark plug!
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Old Mar 6, 2012 | 08:08 AM
  #104  
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Are the torque master plugs still recommended? I know a few years back they were great. Has technology improved? I searched on their site and didn't see a place to purchase at... Any help on where to buy the TM plugs at?
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Old Mar 6, 2012 | 10:25 AM
  #105  
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Originally Posted by SADDLE
Are the torque master plugs still recommended? I know a few years back they were great. Has technology improved? I searched on their site and didn't see a place to purchase at... Any help on where to buy the TM plugs at?
I think people are of the mind, for the gs300, to just get the dual-grounded OEM-recommended platinum sparkplugs.
Save your money for other mods or fuel.
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