Question about 2005 Toyota Corolla

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Thermostat housing Has the Corolla 2005 ZZE-122 got studs on Termostat housing? How would you extract them? Easy outs or try to prise them loose with a vise-grip?

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  • Toyota Master
  • 1,209 Answers

I think I would try to heat the area of the head around the broken bolts with a torch and then try to work out the broken bolts with vicegrips if you are able to get on them. If not I would think about seeking professional help. Trying to drill into a steel bolt in an aluminum heat can be disastrous.

Posted on Apr 28, 2013

Testimonial: "So they are Studs and not pressed into the Aluminum block?"

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Posted on Jan 02, 2017

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caroldon
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SOURCE: my toyota corolla nze 2002 has a rattling sound in the gear box

SInce any noise from within the engine/gear box cannot be taken lightly, it is important that you will need a good look from a service shop. If you have been carrying out the scheduled service in accordance with Toyota timings, there will not be an issue. You could check out if the noise is external,otherwise get you car to the authorised Toyota centre for an estimate. This will be better than trying out/ stipping and then waiting for spares. I hope my advise is helpful. good day

Posted on Jul 02, 2010

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1 Answer

Water pump thermostat


The hard bit is:-You will need to drill a hole down the centre of the broken bolt, when you have drilled about 2cm use a stud extract to ease out the broken bolt. Stud extractors are relatively cheap they are a tapered left hand thread which grips the side of the hole as you try and unscrew it. If you put a drop of brake fluid round the broken bolt and let it soak in, it acts as a penetrating agent. Take the drilling easy don't force it!

Dec 30, 2013 | 1992 Cadillac Eldorado

1 Answer

Where is the termostat on a 2005 dodge ram 1500


On 3.7/4.7L engines follow the lower radiator hose to the engine block.
it will be attached to the thermostat housing by the pulley.
You may need to lift the truck and disassemble the splash guard to gain easy access.
Make sure your system is cooled and not pressurized.
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Jul 14, 2012 | Dodge Cars & Trucks

1 Answer

How to change thermostat


The Termostat fit inside the Termostat Housing. It normally links to one of the radiator hoses leading from the engine block or radiator. Depending on the model you have, the termostat housing needs to be opened, the old termostat removed and the new termostat inserted. It's quiet simple. Before closing up, make sure that the both surfaces on the housing are clean and free from dirt and old sealant. If you remove a gasket, then replace with new gasket. If the housing takes a rubber O ring, then it is advisable to replace this.

Good Luck

Dec 29, 2011 | 2004 GMC Yukon

1 Answer

How to get the thermostat housing to disconnect. We have taken all bolts loose but will not come apart.


Not sure if you have the 2.7L or the 3.5L so I'll post for both sizes for you:


2.7L Removal procedures
  1. Drain cooling system.
  2. Remove radiator lower hose from thermostat housing.
  3. Remove nuts from heater tube flange studs.
  4. Loosen starter bolt at heater tube bracket.
  5. Pull heater tube out of thermostat housing and position out of the way.
  6. Remove bolt and two studs.
  7. Remove thermostat housing, O-ring and thermostat.
  8. Remove thermostat housing bolts.

3.5L Removal procedures

  1. Drain cooling system.
  2. Raise vehicle on hoist.
  3. Disconnect electrical connectors from engine oil and power steering pressure switches.
  4. Disconnect radiator and heater hoses from thermostat housing.
  5. Remove thermostat housing bolts.
  6. Remove housing, thermostat, and gasket.
NOTE:
The OEM thermostat is staked in place at the factory. To ensure proper seating of replacement thermostat, carefully remove the bulged metal from the thermostat housing using a suitable hand held grinder. It is not necessary to restake the replacement thermostat into the thermostat housing

May 07, 2011 | 2003 Dodge Intrepid

3 Answers

I need to find the truck termostat, where is it?


The thermostat is located in the front of the intake manifold under the thermostat housing, and follow the upper radiator hose over to where it connects to the engine on the intake manifold and that will be the thermostsat housing. remove the upper radiator hose from the thermostsat housing and remove the ground wire if there is one attaced to one of the two thermostat housing studs, and then remove the two studs/bolts from the thermostat housing and then remove the thermostat from the intake manifold. Be sure to replace the thermostat correctly and here is an image to help assist you.


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Sep 10, 2010 | 1997 Chevrolet C1500

1 Answer

I have a broken bolt (passenger side) on the thermostat housing and need to replace the thermostat. I've tried drilling out the bolt and extracting it with an easy out but no luck. Th remaining bolt kept...


there is a new kind of easy out .. the old left hand spiral design doesnt work somtimes .. the new one is much better (more of a straight rib) ... use penitrating oil a few hours before attempting to remove ..

in an emergency you can use "liquid gasket" you can get that at any auto parts store (use non perminant version) .. apply that to both sides of the gasket .. make it thick enough to fill the gap ..bolt down snug let cure before use .. ... but the loss of one bolt will eventually crack the boss on the remaining side .. so its a good idea to fix the problem .. you can usually get the old bolt out with the new easy out but if you cant . then just drill a hole thru the broken bolt and use a tap to make new threads for a smaller size bolt with washer ... make sure the new bolt doesnt bottom out ...

Jun 10, 2010 | Cars & Trucks

1 Answer

Whwn I try change thr thermodtst thr up bolt broke. Toyota Corolla 1990


yes they do that sometimes. water gets in the threads and causes rust and corrosion.
A professional mechanic will try to work that loose and even try to drill out the part that might be stuck in the intake manifold. You have to be really really careful not to get off center and you need a very very hard drill bit. if you are lucky part of it will still be sticking up when the thermostat housing is removed. You might be able to get some locking pliars on it and work it loose with some WD-40.
I have done all kinds of crazy things to get a grip on broken studs. I have even welded nuts onto them so I could get a good grip with a socket. spray them with solvent, tap them with a hammer, try to tighten then loosen back and forth till they come out. I'm not even going to mention what iv done with various heat sources. but a little supercold on the broken stud can help get that solvent down there.

Mar 13, 2010 | 1990 Toyota Corolla

2 Answers

Need to replace thermostat


USING A PAIR OF PLIERS RELEASE HOSE CLIP AND DISCONNECT THE HOSE FROM THE THERMOSTAT HOUSING LOOSEN AND REMOVE THE THERMOSTAT COVER BOLTS AND CAREFULLY THE TERMOSTAT COVER AND WITHDRAW THE TERMOSTAT FROM HOUSING REPLACE NEW TERMOSTAT ,RE FITTING IS THE REVERSE OF THE REMOVAL, BEARING IN MIND IN THE FOLLOWING POINTS ENSURE THAT THE THERMOSTAT IS CORRECTLY LOCATED IN THE HOUSING AND FIT A NEW SEALING RING .

Oct 24, 2009 | 1996 Volkswagen Passat

1 Answer

How do you replace a thermostat on a 2002 toyota celica


Toyota Celica, Corolla, ECHO & MR2 1999-05Toyota Celica, Corolla, ECHO & MR2 1999-05

2002 Toyota Celica 1.8L MFI DOHC 4cyl


The thermostat is located in the water inlet housing that is connected to the lower radiator hose.
The thermostat is equipped with a by-pass valve. If the engine tends to overheat, removal of the thermostat would cause a decrease in cooling system efficiency.

CAUTION NEVER drain coolant directly onto the ground! NEVER open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.
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Fig. The oil filter must be removed to access the thermostat on the 5S-FE engine
  1. Position a suitable drain pan under the radiator drain **** and drain the cooling system.
  2. On the 7A-FE engine disconnect the engine coolant temperature switch harness from the water inlet housing.
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Fig. Disconnect the engine coolant temperature switch wiring located on the side of the thermostat housing
  1. Remove the oil filter on 5S-FE engines.
  2. Loosen the hose clamp and disconnect the lower radiator hose from the water inlet housing.
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Fig. Loosen the radiator hose clamp ...

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Fig. ... then slide the hose off the thermostat housing
  1. Remove the two nuts from the water inlet housing and remove the housing from the water pump studs.
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Fig. Only two nuts hold the housing to the cylinder head

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Fig. Pull the housing straight out to remove
  1. Remove the thermostat and rubber O-ring gasket from the water inlet housing.
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Fig. Then pull the thermostat and gasket out

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Fig. Sometimes the gasket is stuck and has to be pried out of the head
To install:
  1. Make sure all the gasket surfaces are clean. Clean the inside of the inlet housing and the radiator hose connection with a rag.
  2. Install the new rubber O-ring gasket onto the thermostat. On 5S-FE engines, align the jiggle valve with the upper side of the stud bolt. Insert the thermostat into the housing.
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Fig. Only use the correct temperature range thermostat when for replacement

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Fig. Align the jiggle valve within a 10°gap of the stud bolt-7A-FE engine

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Fig. Align the jiggle valve within a 5°gap of the stud bolt-5S-FE engine
  1. Position the water inlet housing with the thermostat over the studs on the water pump and install the two nuts. Tighten the two nuts to 78-82 inch lbs. (9-10 Nm).
Don't forget to install a new O-ring onto the water inlet pipe. Apply soapy water to the O-ring prior to installation.
  1. Connect the lower radiator hose to the inlet housing and install the hose clamp.
  2. Attach the water temperature switch connector.
  3. Install the oil filter and check the oil level if removed.
  4. Fill the cooling system with a good brand of ethylene glycol based coolant.
  5. Start the engine and inspect for leaks.
  1. Remove the right hand cover under the engine.
  2. Drain the engine coolant.
  3. Remove the fan and generator V belt.
  4. Remove the generator assembly
  5. Remove the water inlet via the two nuts.
  6. Remove the thermostat.
To install:
  1. Install a new gasket onto the thermostat.
  2. Install the thermostat with the jiggle valve upward. It can be set within 10 degrees on either side of the prescribed position.
  3. Install the water inlet via the two nuts. Torque to 8 ft. lbs. (11 Nm).
  4. Install the generator assembly.
  5. Add engine coolant.
  6. Inspect for leaks.
  7. Replace the cover under the engine.
I hope help you with this (remember rated this help) Good luck.

Sep 29, 2009 | Toyota Celica Cars & Trucks

2 Answers

I was attempting to replace my thermostat adn i broke both stems to the thermostat HELP!!!!!!!!!!


That's because of corrosion. It happens!

The broken studs have to be cut, or ground down flush, with the thermostat housing. Then a center punch is used to make a deep dimple, in the center of the broken stud.

Next use a small drill bit to make a pilot hole.
Two times smaller than the stud. (Bolt)
Use caution, as you don't want the drill bit to walk off to one side. Keep the drill level, and vertical.

Now come back with a larger drill bit, but one that is smaller than the stud/bolt, and will stay away from the threads. Try to drill at least one-half inch in depth. Use an Easy Out, bolt extractor.

If it feels as though the Easy Out bolt extractor, is being forced too much, and you think there is a possibility of it breaking, STOP!
Use a drill bit that is large enough, to drill a hole that will not touch the threads. Then work a small chisel along the outside edges of the bolt 'Shell', and work that thin shell to the inside. Use a pair of needle nose pliers to try to extract the shell out. One piece at a time.

(After you have drilled the center of a stud, or bolt, out to where the threads are, there is a thin metal shell left behind)

Jun 12, 2009 | 1991 Chevrolet Caprice

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