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Firing order on a 3.4, Help

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Old 12-12-2004, 08:53 AM
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Firing order on a 3.4, Help

Hey to all, got the new wires and I think I crossed the wirs. Heck there's only three, but somehow th truck doesn't seem to be running smooth when I started so before I start changing the wires around, Anybody got the firing order, which wires go to which coil pack? 1-3-5 to ........, thanks, EDH
Old 12-12-2004, 09:23 AM
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According to my Chilton's manual, for the 5VZ-FE (97 to 2000), the firing order is 1-2-3-4-5-6, believe it or not. Standing in front of the vehicle, looking towards the back, the left bank of cylinders are numbered 1,3 and 5, and the right bank of cylinders are numbers 2,,4 and 6(front to back). Make sure everything else is reconnected, are the boot wires on tight? Maybe a bad plug as well. Good luck!
Old 12-12-2004, 09:29 AM
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Does this help ya?
Old 12-12-2004, 09:48 AM
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That out of a Haynes?
Old 12-12-2004, 09:49 AM
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Originally Posted by Mad Chemist
According to my Chilton's manual, for the 5VZ-FE (97 to 2000), the firing order is 1-2-3-4-5-6, believe it or not. Standing in front of the vehicle, looking towards the back, the left bank of cylinders are numbered 1,3 and 5, and the right bank of cylinders are numbers 2,,4 and 6(front to back). Make sure everything else is reconnected, are the boot wires on tight? Maybe a bad plug as well. Good luck!
Where can I get a Chilton's for our 4runners? I've looked everywhere and I can only find Haynes.

EDIT: nevermind, I found a place:
http://www.delmarlearning.com/browse...=AU&cat2ID=CHM

Last edited by keisur; 12-12-2004 at 09:51 AM.
Old 12-12-2004, 10:28 AM
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firing order

Originally Posted by Mad Chemist
According to my Chilton's manual, for the 5VZ-FE (97 to 2000), the firing order is 1-2-3-4-5-6, believe it or not. Standing in front of the vehicle, looking towards the back, the left bank of cylinders are numbered 1,3 and 5, and the right bank of cylinders are numbers 2,,4 and 6(front to back). Make sure everything else is reconnected, are the boot wires on tight? Maybe a bad plug as well. Good luck!
Mad Chemist and Swede, thanks, I just got a check engine light, obviously got the wiring order wrong, thanks for the help. I'll go outside and try this right now. let you all know. thanks again, EDH
Old 12-12-2004, 10:53 AM
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I believe they no longer make Chilton manuals you can only get Hayes.
Old 12-12-2004, 10:54 AM
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Originally Posted by bbagwell
I believe they no longer make Chilton manuals you can only get Hayes.
see my edit in that post. you can get them.

and also here along with the Haynes:

http://www.amazon.com/exec/obidos/tg...glance&s=books

Last edited by keisur; 12-12-2004 at 10:55 AM.
Old 12-12-2004, 11:44 AM
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Hope you get it figured out!
Old 12-13-2004, 05:55 AM
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Firing order 3.4

Originally Posted by Mad Chemist


Hope you get it figured out!
Hey thanks to all who helped out. "Swede" the diagram was perfect. I am sending the wires back to Sparkplug.com as they did not have the much needed retainer caps to hold the wires on. I bought some NAPA "Max LIfe" wires and they came complete. I changed the plugs and wires and the trucks now starts faster/easier and runs smoother. guess it was time and all at 56,000 miles. So much for 100,000 mile tune ups!! Again thanks to all who helped and to this board it's GREAT!! EDH
Old 06-14-2007, 09:17 AM
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Spend the $$ to buy actual Toyota OEM wires. You will eventually...

The Napa wires I had for a short time made me lose gas mileage, power, and caused lots of interference on the radio. She ran noticeably better with Toyota parts.

YMMV
Old 12-09-2007, 10:46 AM
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I realize this post is old but my problem is new and similar to h7009’s. I
replaced the wires + plugs on my ’96 T100 3.4L yesterday(NKG dual electrode
plugs, Bosch wires). When I fired it up it sputtered & shuttered, miss-fired, but
would idle. I swapped the wires on cyls 1 & 3 thinking I mixed them up.
Same thing.Then I then discovered I left he coil disconnected on cyl. 5,
so I reconnected it. Still same thing. I re-swapped wires on 1 & 3 so now I
have wires as such:

1 - 2
3 - 4
5 - 6

The motor will not even start now. On the Haynes diagram in this thread,
does the little box to the left of the cylinder diag. show which cylinders the
wires are supposed to be connected to?
1 - 4
3 - 6
2 - 5 ???

Thanks.
8lugger
Old 12-09-2007, 11:06 AM
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I think I found my answer on the thread below. I'll know for sure
when I get home an hour or so to try it.

https://www.yotatech.com/forums/f2/h...k-plugs-40801/
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