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Which Trucks Came With the 3VZE

The 3VZ-E was the V6 option from 1988 to 1995 in the fifth-generation Pickup, the second-generation 4Runner and the early T100. Four-cylinder trucks of the same years ran the 22R-E.

You will see it written 3VZ, 3VZE and 3VZ-E, and some people simply say the 3.0. All the same engine. Note that it is 3VZ-E, not 3VZ-FE — the FE suffix belongs to a different engine family and does not apply here.

Being straight about this engine's reputation: the 3VZE has a well-known head gasket history, and that is what brings most people to this page. It is a fixable problem, not a reason to give up on the truck, and doing it properly the first time is the whole game.

Cylinder Heads — the Main Event

If the gaskets have gone, the heads are almost always worth addressing at the same time. We offer them several ways:

The 3VZ head gasket set covers the gaskets alone, and the Pro head stud set is the upgrade we would recommend to anyone doing this job once and not wanting to do it again. Factory head bolts are torque-to-yield; studs clamp more evenly and can be re-torqued.

For a full engine refresh, the Master Rebuild Kit for 1993-1995.

Timing

The 3VZE is a timing belt engine, not a chain engine like the 22R family, and the belt is a scheduled replacement item that a great many of these trucks are overdue for. The timing belt kit for 1988-1992 covers it.

Getting the marks right is the part that catches people out, and it is the single most-read 3VZ article we publish: 3VZ timing. Read it before you take the covers off, not after.

Also here: 3VZ valve shims, 2.60mm to 2.95mm.

Fuel and Ignition

Most 3VZE running complaints trace back to a small number of aged components rather than anything serious.

The 3VZE throttle body is a common one, and the throttle position sensor with it — the OEM TPS for 1989-1995 fits the 22R-E and the 3VZE both. A misadjusted TPS produces symptoms people chase for months.

Also worth checking before anything expensive: the OE fuel pressure regulator, the 1988-91 street distributor, and the street tune-up kit with NGK plug wires for 1988-1991. If the truck is hard to start cold specifically, our cold start injector and time switch article is the place to begin.

The 3VZ silicone vacuum hose kit replaces the factory lines, which by now are brittle and a genuine source of running faults — and it is one of the cheapest jobs on this list.

Breathe — Intake and Exhaust

The LCE Street Header Kit for 1988-1995 fits 4WD Pickup and 4Runner only, with no crossover — check that against your truck before ordering. Fit it with the 5VZ/3VZ header stud set.

On the intake side, the LC Pro air intake kit for 1988-1995. Downstream, the 1985-1995 Pickup Pro Flow exhaust system covers the rest.

Other Parts Worth Knowing About

The 3VZ hi-torque starter for 1994-1995, and the 3.0L V6 Power Flow power steering pump kit with ABS.

Should You Rebuild It or Swap to a 5VZ?

It is a fair question and we get asked it weekly. The 5VZ-FE 3.4L that replaced this engine is more powerful, more reliable and better supported.

But a 3VZE that has had its heads done properly, with studs, a fresh timing belt and sorted vacuum lines, is a perfectly good engine that will keep a 4Runner going for years — and it stays in the truck it was designed for, with no wiring, mounts or exhaust to solve. If the truck is otherwise sound and you like it, fix the 3VZE. If you are already deep into the engine bay for other reasons, the swap starts to make sense.

Tell us the year, the truck and what is wrong with it and we will give you a straight answer rather than the one that sells the most parts. If you would rather we built it, let us do your build.

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