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HOW TO: Change Your Spark Plugs and Wires (2.7 liter 3RZ-FE engine)

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Old 02-01-2013, 11:31 AM   #21
trdracing5 [OP] trdracing5 is offline
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Quote:
Originally Posted by ohcray View Post
I'm probably the only noob reading this, but I have an '04 2.7L with 200K miles on it and will be replacing the plugs and wires soon. But where are the two things mentioned above located? I wish there was an exploded view of the engine and tranny somewhere with everything labeled...

OP-Great instructions, by the way!
Glad it was able to help you.
BTW you do not have a rotor you have a coil pack so you dont have to worry about the rotor!

<Image of Coil Pack>

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Old 07-26-2013, 03:46 AM   #22
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Firing order

Great post, but you gave the lower right location on the distributor to both the number two and the number three plug wires and my cap is numbered but not in the same manner as your instructions. If distributor rotates clockwise I have number one in the top right, below that there's number 2, lower left is number 4 (not 3) then number 3 at upper left. Which makes me think something's wrong here and I confirmed and labeled my routing before disassembling or reading your post. Can you give me a hollar back with your decision on which is the correct way? Please, and much abliged for all the otherwise seemingly helpful info.
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Old 07-30-2013, 09:48 PM   #23
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I had to pull the intake tube out of the way...pain in the ass to get those two nuts off the bottom of it...especially when the exhaust manifold is still hot
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Old 08-17-2013, 07:14 AM   #24
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Thanks for the write up OP. Very helpful for noobs like me 😎
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Old 08-31-2013, 12:01 AM   #25
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just got the CEL code for a cylinder 2 misfire. will be doing this tomorrow. rep for you sir!
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Old 10-16-2013, 06:27 AM   #26
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Great write up, thanks!!
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Old 01-24-2014, 10:52 AM   #27
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Quote:
Originally Posted by ohcray View Post
I'm probably the only noob reading this, but I have an '04 2.7L with 200K miles on it and will be replacing the plugs and wires soon. But where are the two things mentioned above located? I wish there was an exploded view of the engine and tranny somewhere with everything labeled...

OP-Great instructions, by the way!

Im a noob too and I have question about my 2003 2.7 and why does this year model does not have the traditional plug wires like what is pictured above. Mine has individual ignition coils on each cylinder but no plug wires. These plug wires look as if they are tied into a wiring harness??
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Old 02-23-2014, 01:59 PM   #28
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tacosoup89 your truck's ignition is controlled by a computer, TDI -Toyota Direct Ignition, a distributor-less ignition system. Since you have no distributor, you are not going to have; cap, rotor, and spark plug wires. You are just going to have electrical wiring, from the computer, going to each ignition coil that sits on top of each spark plug.
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Old 08-22-2014, 11:17 AM   #29
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Could someone spread some knowledge on me? Is there a different time period between changing the spark plug wires on older 1st gens, than the coil packs on the newer ones? I'm not really sure what the benefit is of having to replace 4 packs at $60-80 EACH, vs. $60 for an entire wire set.

It's also confusing that when I search for "spark plug wires" for my 2004 2.7l at a Advanced Auto Parts website, the return shows the same wires I had on my 1999.

Also, does anybody replace the connecting wires of the coil packs?

Thanks!!
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Old 08-22-2014, 04:25 PM   #30
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I haven't heard of anyone replacing the coil packs unless they are bad.
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Old 08-29-2014, 09:04 PM   #31
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cylinder 2 misfire

Quote:
Originally Posted by raginmd View Post
just got the CEL code for a cylinder 2 misfire. will be doing this tomorrow. rep for you sir!
Raginmd , what did you find out about this? My sons is now doing the same thing. We just picked up new wires for it.
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Old 09-03-2014, 11:50 AM   #32
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What are the best OEM spark plugs to get NGK or DENSO
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Old 10-23-2014, 07:27 PM   #33
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When/what condition does one change the spark plugs and/or wires?
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Old 11-29-2014, 02:46 PM   #34
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I just changed out my plugs & wires today & was blown away by the difference they made. My truck has 48,500 miles on it but still had the original wires & plugs from 1998. Overall truck ran fine but just felt gutless & idled a little rough. It also hated to be lugged at all & the whole truck would shudder if you didn't keep the rpms up around 2k. Now all that is solved! Motor is quieter in general, idles smooth, feels peppy again & doesn't care about being lugged anymore! The whole job took me about 30 min or so maybe a little longer because my neighbors kept stopping & bugging me.

I used OEM denso plugs I picked up from the dealer for $2.22 each & bought the nice NGK wires off amazon for $40 shipped.
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