Question about 1995 Toyota 4Runner

1 Answer

I have a 1995 4runner automatic, 3vze(?)v6 engine. About two years ago I had to have the head gasket replaced($2700.00). It was done in the spring, so I didn't use the heater until the fall and found I had no heat. The garage I used gutted the thermostat. I put in a new one(195f I think), but started overheating. When I'm on a hiway it will get hot, and i've found that down shifting, or at hiway speeds, turning the overdrive off, will cool it down for a couple of minutes. City speeds, I have to go to 2 or 1, or if at a light, put it in neutral and get the rpm's up to about 3000 to cool it down again. I recently(3/11) had work done, and the mechanic told me the thermostat had to have a jiggle valve, which he installed and said I was good to go. About fifteen minutes later it started overheating again.

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 184 Answers

The jiggle valve is just to assist in ensuring no air trapped behind the thermostat.It is important but only really at the bleeding air out stage.When it gets hot,throw the heater on,it should get hot and the temperature will come down or stabilise.I would recommend removing the radiator and having the top tank removed and the core tubes cleaned thoroughly. Refit it and ensure that you fill it slowly to allow air to escape.Use a good quality coolant too.Get back with your findings if fix still needed and I will endeavor to pinpoint repair needed.

Posted on Apr 01, 2011


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Toyota 4runner v6 engine 3vze 1991 year-problem engine light on and less power-i change oxygen sensor and coil ingnition cap-i find into engine control some burned componets, i change it and for some month...

A common problem in the Toyota V-6 engine was head gasket failure. This doesn't sound like the symptoms that we had with our 4-Runner, but is worth checking. Does the vehicle use fluids, such as coolant. Or does the oil tend to discolor milky or brown?

Sep 10, 2017 | Toyota 4Runner Cars & Trucks

1 Answer

I have a 93 model v6 3vz-fe engine overheating after i replaced the head gaskets, now before i go any further i am a mechanic now i used the vrs set with a monotorgue gasket the heads didn't seal straight...

i am also a mechanic and had s ame type of problem with hq ute fitted with 350 chev eng it ran at. 220deg we had radiator checked it was 70 percent blocked it now runs 90-110 i have done quite a few heads on a lot of different makes and models over the past six years and i have the radiator cleaned or replaced now as a part of the job it saves having to worry about the engine overheating after the heads have been done for no apparent reason. i had another car with an over heating problem we could not find any thing wrong with the cooling systme or the engine after finding out the custmer had fitted the termo fans i checked them and found they ran bacwards. i rversed the polarity and it solved the problem hope this helps

Apr 06, 2011 | 1992 Toyota Camry V6

1 Answer

Need to replace gasket on the external oil pump, 95 tauras 3.8 v6

I owned a 95 Taurus for several years and done my own maint. I never heard of an external oil pump. The pump is in the oil pan and runs off the cam shaft. To replace it you have to pull the oil pan. After that it is fairly easy. Take out the bolts and it will come out. There are no springs to worry about.If you were talking about some other pump let me know.

Jan 24, 2010 | 1995 Ford Taurus

1 Answer

3vze v6 engine no power to fuel pump can only

remove the passenger side of your dash "the glove box" there is a circuit opening relay tucked up behind the speaker it's small box. it reseavs signal from efi and maf then sends power to your pump. good luck...peace and love for all...

Jan 22, 2010 | 1994 Toyota 4Runner

2 Answers

We have an engine oil leak that the Dealer says he needs to pull the engine to fix it - They estimate upto $ 3000 to fix it. Do you have any information about this.

your first mistake is going to a dealer to have work done. they always charge a buttload for work, to make up for lost revenue throughout the year.
but yes, replacing some gaskets can get costly. oil pan gaskets, head gaskets, main seals. and sometimes you need to remove the engine to fix it

Dec 20, 2009 | 2005 Saturn VUE

Not finding what you are looking for?
1995 Toyota 4Runner Logo

299 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toyota Experts


Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8567 Answers

Are you a Toyota Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides