02-13-2017, 06:28 PM
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#1
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2001 not starting after tune up
So last night I pulled the intake and replaced all 6 plugs with ngk twin tips and replaced the wires with ngk wires. I also replaced the starter contacts since I was having trouble with the truck not firing up on the first turn of the key.
After buttoning everything back up, it would turn over, try to crank, but it won't start up. I thought the plug wires were in the wrong order, but after checking they were right. The coil packs don't go on to a certain plug, do they? I was pretty sure they were all 3 the same.
Anybody have any ideas?
2001 4x4 v6. 170k miles
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02-13-2017, 06:37 PM
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#2
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1. Check the plug wires again against this:
2. Check the engine ground by the diagnostic plug.
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'99 4Runner SR5 5spd 3.4L V6 4WD(U.S), original '99 Talls in front, OME 906s in back, Hella fogs, Trekmaster shocks in front, Billy in back, no running boards, FIAMM horns, Alpine sound, Michelin LTX M/S2's, owned since new.
'97 HiLux SW4 5spd 4WD(Japan model bought in Brazil assembled in Argentina, very close to a 3.0 4Runner/Surf)
'71 FordWillys Jeep CJ5 (with straight six Ford Maverick 3.0 liter engine--lives in the mountains north of Sao Paulo Brazil)
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02-13-2017, 06:38 PM
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#3
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All 3 coil packs are the same.
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1999 T4R Limited (Mine)
2000 T4R Limited (Wife's)
2004 Tacoma Xtra Cab TRD
Last edited by tystaco; 02-13-2017 at 11:24 PM.
Reason: I am an idiot that didn't read the OP's full post. Learning daily.
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02-13-2017, 06:55 PM
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#4
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I will admit this just happened to me cause I wasn't paying attention
I had actually forgot to plug one of the coils back in when putting it back together. It was the one under the air intake assembly so I didn't catch it till I took it back apart to see what I did wrong. Hopefully yours is as simple. Doh!
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02-13-2017, 08:07 PM
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#5
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Quote:
Originally Posted by TheDurk
1. Check the plug wires again against this:
2. Check the engine ground by the diagnostic plug.
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This is not at all the way I thought it was. I'll have to check this out in the morning. Thanks
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02-13-2017, 09:18 PM
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#6
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Let's hope for no damage. I damaged a mazda 4banger many years ago mixing up 2 plug wires, arrrggggggg!!!!!
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02-13-2017, 10:30 PM
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#7
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wow, on a 2001 you have to pull the intake to replace the plugs...really..then I'm glad I have a 2000
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02-13-2017, 10:42 PM
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#8
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Quote:
Originally Posted by 3bears
wow, on a 2001 you have to pull the intake to replace the plugs...really..then I'm glad I have a 2000
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You don't have to pull the intake to change the plugs on any 5vz, not sure why the OP did. All 5vzfe's are the same except for the throttle body after 2000 I believe. After that they switched to a drive by wire rather than a cable.
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02-13-2017, 10:46 PM
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#9
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Since you said you worked on the starter, double check all the wires on on there securely.
Also, you might have unplugged the MAF sensor if you removed the intake. It's an easy one to forget when putting it all back together and would 100% not make it start.
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02-13-2017, 10:51 PM
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#10
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for no apparent reason my ICM gave up the ghost and wouldn't spark????
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02-14-2017, 08:37 AM
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#11
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Quote:
Originally Posted by gamefreakgc
Since you said you worked on the starter, double check all the wires on on there securely.
Also, you might have unplugged the MAF sensor if you removed the intake. It's an easy one to forget when putting it all back together and would 100% not make it start.
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I thought of this as well. If switching the wires doesn't do anything, I'll check the starter connections.
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02-14-2017, 10:59 AM
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#12
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Turns out the wires weren't in the correct positions. I swapped them according to the diagram. I started it up and after a few seconds it idled nicely.
Thanks for your help!
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02-14-2017, 12:17 PM
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#13
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Glad that solved your issue!
Slightly off topic, but is there any reason for the wires to be loomed per the diagram? Obviously they have to fire the proper plug, but what about the little 'wire holder looms'? Does having them in the proper slots help prevent misfires or something?
I always just followed the diagram, but I've always been curious about that.
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02-14-2017, 12:34 PM
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#14
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Quote:
Originally Posted by Tinigunner11
You don't have to pull the intake to change the plugs on any 5vz, not sure why the OP did. All 5vzfe's are the same except for the throttle body after 2000 I believe. After that they switched to a drive by wire rather than a cable.
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Wait, what? I just changed the plugs on my '01 last weekend for the first time (had the truck for 1 year). You definitely have to remove the intake to get to the plugs on the passenger side. It sits right on top of everything...?
Not my photo but this is basically what it looks like.
https://www.youtube.com/watch?v=VDBdp8rjYkw
I didn't follow this video either but that's basically the process that I went through.
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02-14-2017, 12:36 PM
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#15
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Quote:
Originally Posted by ASUMTNEER
Turns out the wires weren't in the correct positions. I swapped them according to the diagram. I started it up and after a few seconds it idled nicely.
Thanks for your help!
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You are not alone. That diagram has resolved the issue of several posters who "thought" they had it right. H/T to
@ zcruiser
whom I got it from.
Quick way to remember--the difference is always three: 1-4, 3-6, 5-2.
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'99 4Runner SR5 5spd 3.4L V6 4WD(U.S), original '99 Talls in front, OME 906s in back, Hella fogs, Trekmaster shocks in front, Billy in back, no running boards, FIAMM horns, Alpine sound, Michelin LTX M/S2's, owned since new.
'97 HiLux SW4 5spd 4WD(Japan model bought in Brazil assembled in Argentina, very close to a 3.0 4Runner/Surf)
'71 FordWillys Jeep CJ5 (with straight six Ford Maverick 3.0 liter engine--lives in the mountains north of Sao Paulo Brazil)
My Backyard Frame Swap
Last edited by TheDurk; 02-14-2017 at 12:43 PM.
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