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What EVERYONE should know about their truck & the 3VZE

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86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

What EVERYONE should know about their truck & the 3VZE

Old 09-28-2017, 06:28 AM
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Super useful information. My wife's truck has this same engine, made life interesting with gasket replacement at 362000km but runs strong still. Just hit over 600000km in September and still runs great. Yes some of these engines can be a hassle, I guess it depends on what kind of life its had and build/repair quality it underwent will determine most major issues. We pull 3000lbs quite often and do lots of uphill driving and haven't had much issue. Won't do it forever and she is getting old but it is a good engine for us.
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Old 03-26-2018, 09:04 AM
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I love the new text color! This write-up is hella helpful. I have run into all of these problems prior to finding this thread, I am glad i'm not the only one (and i've seemed to approach each the same way recommend). Also everyone, our powering steering pumps DO NOT take power steering fluid. huge mistake i've made. Thought it should be added for newbie techs like myself.
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Old 09-06-2018, 10:38 AM
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I build a lot of 3.0 engines for people and block condition is a problem if maintenance is not done on schedule. Toyota themselves recommend the green antifreeze. Engines with cast iron blocks have been used since engines were created an pose little problem if coolant is replaced on a regular basis. What you have here is a cast iron block with aluminum heads which causes problems with dissimilar metals and intergranular corrosion. All cast iron blocks will corrode if antifreeze is not changed. Even worse is that the aluminum will corrode as well.
Your best bet with these blocks is to flush and change the green antifreeze every 1 to 2 years and if still worried about it then run a sacrificial zinc anode in the radiator. You can buy a radiator cap with a zinc anode connected to it.
The Toyota red won't fix a system that has already corroded.
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Old 09-11-2018, 10:15 AM
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Question VF1A transfer output shaft

I'm in need of an output shaft(mine is bent) for a VF1A transfer case out of my 94 Runner. Anyone know where I can get one? Also need a rebuild kit for this transfer case do they have one anywhere?
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Old 09-11-2018, 12:17 PM
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Originally Posted by [email protected] View Post
I'm in need of an output shaft(mine is bent) for a VF1A transfer case out of my 94 Runner. Anyone know where I can get one? Also need a rebuild kit for this transfer case do they have one anywhere?
Even though you are hijacking this sticky thread, I will respond.....

Where are you located?? I have a low mile VF1A in good condition I might part with.
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Old 09-12-2018, 06:39 AM
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Apology

All,
I apologize not sure how this happened, It was not my intention to do so. I'm at a loss to find a good output shaft. I'm located in Sioux City IA, 51106.
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Old 10-17-2018, 07:42 AM
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I wanted to say thanks for the informative sticky. I've checked it out a couple times keeping my 91 4runner going and it's been great!
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Old 10-17-2018, 11:15 AM
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Output shaft

I am not familiar with that part number. Is that the out put shaft for the automatic or the manual? I have a complete transfer case for an automatic if that is the one you need.
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Old 10-17-2018, 02:14 PM
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Some great tips

Bought my '94 3.0 4Runner in 2000, with 98k miles on the motor (after previously owning an '84pu, '88pu and '89 4Runner). We call her the Black Pearl. Through the years, I've done much of the suggestions/tips in this thread. Lots of upgrades done for off-road and performance, too. She went to 379k miles before the dreaded head gaskets went again in 2015 (for the 4th time!) and cracked the upper block. Got a re-manufactured motor and was on the road again. Gone through all the heartaches of all the HG issues, and thought I was done with them, since I've done so much of the suggested maintenance, mentioned here. Damn, it it didn't happen again this weekend! Guess whoever rebuilt that last motor, didn't find the "new and improved Toyota head gaskets" to put on. Geez. I've got 420,500k miles out of her...thought I could hit the 500k mark. "Oh, what a feeling, Toyota"!...right? Wife is bugging me to get to get rid of her. Gonna miss the Black Pearl.
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Old 12-11-2018, 09:50 PM
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Originally Posted by TNRabbit View Post
I'm stealing this post from ToyotaNation.com; it is one of the best, most complete posts I've EVER seen in response to what to look for with your 3VZE truck; I vote this should be a sticky!

Link to original thread:http://www.toyotanation.com/forum/sh...d.php?t=283353
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Old 05-14-2019, 05:48 PM
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I need help my 3vze

Originally Posted by TNRabbit View Post
I'm stealing this post from ToyotaNation.com; it is one of the best, most complete posts I've EVER seen in response to what to look for with your 3VZE truck; I vote this should be a sticky!

Link to original thread:http://www.toyotanation.com/forum/sh...d.php?t=283353
Have the fuel injectors rebuilt they replace them and put the throttle body back on but now it's spitting gasoline into the cylinder again I need help somebody please help me out with this gas was pouring out the front of my end I don't know what's going on someone please post something to help me out
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Old 06-26-2019, 09:55 PM
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Intermediate rough idle with sputtering during acceleration

Originally Posted by TNRabbit View Post
I'm stealing this post from ToyotaNation.com; it is one of the best, most complete posts I've EVER seen in response to what to look for with your 3VZE truck; I vote this should be a sticky!

Link to original thread:http://www.toyotanation.com/forum/sh...d.php?t=283353
okay so I have a 95 4Runner 4x4 with the 3vze and an automatic. I bought it about a month ago with a mis-fire. Code14. I did plugs wires cap and rotor. Ran perfect for about 10-15 mins, trouble code was cleared never came back. Then I got in it to go to the store probably 20 mins after doing plugs and noticed a low(500-600) rough idle I checked over the plugs wires cap and rotor, all installed correctly. I pulled the codes again and got code 72. Shortly after I pulled the code, I started reading what all of you guys had to say, thank you by the way. To everyone. Anyway I checked vacuum, I think all the lines are routed correctly the egr is functioning. I figured it could use a light cleaning anyway so I pulled the egr apart cleaned it and put it back together( had the battery cable off). After putting it back together I donít have a code(I think I cleared it with the battery being disconnected) but I took it for a test drive all was well until about the time I hit operating temp. Too the point(sorry trying to give as much info as possible) the truck now idles decently but sputters From takeoff until about 2500 rpms then it clears up. Any help would be greatly appreciated as of right now there are no codes flashing so Iím kinda stumped. Should I clean the throttle body? I fiddled with the tps thatís how I got the idle close but canít figure out the sputter. Please help
a friend of mine said maybe the cam position sensor?

Last edited by Tyler Milliron; 06-26-2019 at 10:01 PM. Reason: Update
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Old 06-27-2019, 06:35 AM
  #133  
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These runners can be touchy. Looks like your trying all the obvious items. things to check would also be: check valve adjustments, you could have a tight one in that cylinder, check to see your power brake booster is not leaking( will cause lean condition in one cylinder making NOX sky high),put a old school timing light on the bad cylinder and watch the light to make sure your coil is not crapping out, I usually replace all the fuel injector connectors when changing injectors ( you could have a partially broken wire or bad connection), also check the plenum gaskets for air leaks, sometimes the TPS adjustment is hard to get right and will cause some bad missing if not right ( I gave up on the book adjustment and adjust it by ear to where it runs right). Sometimes it's just trial and error till you hit on the problem, but it will get there.
Good luck hunting.
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