Question about 1994 Toyota 4Runner

3 Answers

I have a 1994 Toyota four runner And the it leaks from the thermostat area and now there is Steam coming from the radiator What is going on. And

Posted by Anonymous on

Ad

3 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 279 Answers

Lodhi Auto is correct about pressure testing the cooling system. However, the system should be checked at the same pressure that is listed on the radiator cap of your vehicle [ie 13 to 16 psi] Many leaks are intermittent, because the leakage only occurs when the system pressure is near the maximum. Testing a 16 psi system at 10 psi can often miss these types of leaks. Inspect ALL the rubber hoses in the system. Replace ANY hose that is bulging or swelling [larger outside diameter]. This usually happens close to the hose clamps. Typical life expectancy for rubber coolant hoses is about 10 years.
When I have a customer come in with a ruptured hose and the hoses are 10 years old or older, I advise that they change ALL the hoses. Otherwise, the remaining hoses will fail one by one, causing multiple failures, great aggravation & larger overall expense for you and needless down time of the vehicle. FYI, the aluminum & plastic radiators used in modern vehicles have a life expectancy of about 12 years.

Posted on Apr 18, 2015

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Toyota Master
  • 954 Answers

Pressure test the cooling system when the engine is cold and the radiator is topped up. After pressurizing the system up to 10 psi examine the leakage all around the engine, radiator and all the joints.

Posted on Apr 13, 2015

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 778 Answers

Do as Lodhi Autos said and find whether it's the thermostat housing gasket that is initially leaking or could just be the hose clamp needs tightening if it's leaking at the hose. Also the rubber hoses seem to leak right next to where the clamp squeezes it to the thermostat nipple and you may be able to cut a little off the hose and move it down then re clamp it as a temporary fix if that is the case just until you can replace the hose. I would start there because it's the first thing you mentioned in your original post.
Let us know how you do? And good luck as overheating an engine is shortening it's useful life to the point that too hot can seize it up.

Posted on Apr 18, 2015

6 Suggested Answers

6ya6ya
  • 2 Answers

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

Hi,
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.
goodluck!

Posted on Jan 02, 2017

hotratchet
  • 952 Answers

SOURCE: need to replace the thermostat in a 1994 Toyota Camry

1. Look up along the lower radiator hose. It will plug into a metal tube on the engine side. Follow the metal tube. It goes to a housing. The housing is kind of buried in the driver's side of the engine. There are 2 smaller coolant tubes plugged in above it. You do not need to touch those, although it looks at first glance like you do.
2. Disconnect lower radiator hose at the metal tube.
3. Disconnect fan switches 1 and 2. These are on elecrtical harnesses going to this housing.
4. Disconnect a sensor on the front of the engine, just above the lower hose. I believe this is the knock sensor, but I'm not sure.
5. Now for the fun part. There are 3 bolts holding this housing on. You can see one at the top. There are 2 others underneath it, such that the bolts form a triangle pattern. You will have to get the bottom 2 out by feel (blind). They are 10mm.
6. Also, if you look to the front of the housing, you will note another 10mm bolt on the front holding down a black plastic leg. This is a wiring harness duct. Remove that bolt. Trace back along the duct. There is one more bolt on the driver's side retaining the duct. There is also one on the back of the engine at the firewall / driver's side. Remove these 2 as well.
7. There is a 12mm bolt holding the metal tube from that housing to the driver's side. Remove that bolt.
8. Gently pry the plastic wiring duct toward driver's side, and back toward firewall. You have just enough to get it off of the stud on the thermostat housing.
9. Now you can pull the housing. It will not come all the way out. It will come loose enough to give you just enough clearance to remove the thermostat (barely). Once you remove the thermostat, you have to pass it downward and toward the firewall to fumble it out.
By the way, you will notice that the metal tube is kind of wiggly in the thermostat housiung. This is normal.
10. Pass the new thermostat in the same way you got the old one out. Make sure when you plug it in that it has an air bleed poppet, and that this poppet is facing up.
11. Reassemble by reversing removal. Getting the nuts / bolts back in blind is... fun...
I don't know the torque spec. You can get a torqure wrench in there barely if you get creative with extensions, knuckles, etc. I wouldn't go abouve 8-10 ft-lb.

Posted on May 01, 2009

  • 11 Answers

SOURCE: coolant leaking

Hello Kasalama :

Is it possible to wash off the engine while protecting the distribuutor and other electronics so we can start with a clean and dry engine ? . * Make sure that your radiator is full and that the Radiator/ Coolant overflow reservoir is at the proper level . * I would put a large piece of cardboard on the floor and along with a bright flash light or shop light use it to guide you where the leak s coming from .

If that is not helpful , I would perform a pressure check on the cooling system . The pressure check can be performed as a diagnostic tool . Put the truck in park and apply the parking brake . Attach the pressure diapham and Start the engine . You will have to manually pump it to a specified pressure as indicated on the gauge/ manometer .

The pressure diaphram usally attaches where the " radiator cap " is . Applying pressure can show leaking hoses, pipes and leaks in the radiator or fittings .

Be mindful that you can also have a leaking Intake manifold Gasket .

I hope that this info has been of help to you .

Posted on May 31, 2009

  • 1 Answer

SOURCE: I have a 1996 Acura 3.2TL[V6] and it is overheating...

I had the same problem, whole new radiator, new hoses, new thermostat, and still overheating. What the problem was for me...bad radiator cap...all that money and a $20 fix...try it?

Posted on Oct 01, 2009

Testimonial: "YES... I HAD THIS DONE ALREADY... BUT IT HAPPENED EXACTLY AS YOU SAID... THANKS ANYWAY!!!"

  • 1 Answer

SOURCE: water leak under the intake manifold,1995 toyota 4 runner

There is a heater core bypass pipe that runs from the block (under the manifold) to the bacl of theengine where you will see a flat rectangular "sheet metal" thing with a pipe coming out of it. The a rubber hose connects. You need to pull the top air plenums and intake to get to it. The p[ipe flange bolts to the block with silicone rtv as a sealant.

Posted on Nov 27, 2009

Testimonial: "thanxs"

  • 104 Answers

SOURCE: cant find thermostat on 1994 toyota camry

its on the driver sidde of the engine. You will see the radiator hose running to the thermostat housing. You must remove the radiator hose and thermostat housing to see it. also make sure your radiator caps seals aren't leaking, especially the one on the top passenger side of the engine!!

Posted on May 10, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

1994 toyota pickup 2.4 boiling the water


Check for bubbles in the radiator when the engine is running,if bubbles are evident then head/head gasket is at fault. Also could blocked 8mm bypass hose from thermostat area.( also check the basic like thermostat operation and radiator for both internal and external blockage.

Apr 12, 2011 | 1994 Toyota Pickup

1 Answer

Smoke coming out of the front hood is it a thermostat problem?


from mean from the grill or the hood and the front panels gap?? smoke or steam?? steam is your radiator is leaking a very fine mist and looks like smoke. smoke is youre buring oil from an oil leak somewhere the engine. good luck

Aug 03, 2010 | 1994 Lincoln Town Car

1 Answer

Cant find thermostat on 1994 toyota camry


its on the driver sidde of the engine. You will see the radiator hose running to the thermostat housing. You must remove the radiator hose and thermostat housing to see it. also make sure your radiator caps seals aren't leaking, especially the one on the top passenger side of the engine!!

May 10, 2010 | 1994 Toyota Camry

2 Answers

Coolant leak... have a pretty bad coolant leak that looks like its behind my timing chain cover... need to add like a gallon of water a day in it... just had the water pumped and thermostat changed......


If you really mean behind the timing chain cover than perhaps the
chain has worn through it which does make for a leak. Probably not the answer you want to hear but not an uncommon problem.

Apr 22, 2010 | 1994 Toyota Pickup

1 Answer

Where is the thermostat located on a 94 toy/4 cylider


Follow the top radiator hose from the radiator to where it attaches onto the engine. The thermostat is inside the housing that the hose attaches to. Remove the radiator hose at thermostat housing. Remove the housing. There are usually two bolts. The thermostat is inside. Scrape off all old gasket material and clean the housing. Install new thermostat and gasket. Be sure not to overtighten the bolts on the housing. The housing is usually cast metal and is easily cracked or broken if the bolts are overtightened. Hope this helps and best wishes.

Jul 31, 2009 | 1994 Toyota 4Runner

2 Answers

My 1994 jeep grand cherokee laredo is running hot


could be a lot of different things. bad heater core, cracked, ripped, or soft hoses, crack in the radiator, bad thermostat, clogged lines. next time you run the vehicle, try to see if you can see under the hood to see where the steam is coming from. that will help you to see if there is a bad line or hose. then try to flush the radiator to see if there is a clog in the lines. then go to get a new thermostat if none of those. then you get into the more expensive items the heater core and the radiator.

Jun 24, 2009 | 1994 Jeep Grand Cherokee

1 Answer

1991 four runner is over heating .rad. full of antafreeze. what else could it be?


The thermostat could be sticking in the closed position, needs changing. Follow tpo radiator hose to thermostat housing, it's inside that housing.

Mar 15, 2009 | 1991 Toyota 4Runner

2 Answers

Steam from front end of car


your radidator hose on the left side has a hole in it and when it gets warm it leaks out. i would replace the hose.

Dec 18, 2008 | 1999 Isuzu Rodeo

Not finding what you are looking for?
1994 Toyota 4Runner Logo

55 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toyota Experts

yadayada
yadayada

Level 3 Expert

76164 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8273 Answers

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

Answer questions

Manuals & User Guides

Loading...