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How do you remove engine coolant temperature switch- which is under the radiator engine/driver side, camry 1994, 4 cyl,

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2 Answers

Coolant boiling in resevoir.


It can be faulty coolant temperature sensor.Its not sensing exact coolant heat temperature so its overheating then required level.

-----------

Get the coolant pressure tested, its definitely leaking coolant. You will need to get the coolant running line.


Pressure test will help you to know from where exactly coolant/refrigerant is getting leaked.

===========

For complete step by step troubleshooting i suggest you to go through the help links mentioned below :----

Click the link below :-----


Coolant enters in transmission on Toyota Land cruiser?

http://schematicsdiagram.blogspot.com/2012/01/coolant-enters-in-transmission-on.html

--------------

1991 Toyota Camry: Order Coolant Bypass Tube?

http://whatisbyme.blogspot.in/2012/05/1991-toyota-camry-order-coolant-bypass.html

-------------

2002 Toyota Camry: Puff of Blue or White Smoke while Starting?

http://whatisbyme.blogspot.in/2012/05/2002-toyota-camry-puff-of-blue-or-white.html

----------------

1994 Toyota Camry: Coolant Leak?

http://technoanswers.blogspot.in/2012/04/1994-toyota-camry-coolant-leak.html

----------

2006 Cadillac DTS: COOLANT LEAK AT DRIVER SIDE NEAR FIREWALL?

http://schematicsdiagram.blogspot.in/2012/04/2006-cadillac-dts-coolant-leak-at.html

----------

MAF, IAT, MAP and Coolant Level Sensor problem all together on Mazda MPV?

http://schematicsdiagram.blogspot.com/2011/12/maf-iat-map-and-coolant-level-sensor.html

---------------

GMC Engine Coolant Temperature (ECT) Sensor Replacing?

http://schematicsdiagram.blogspot.com/2011/12/gmc-engine-coolant-temperature-ect.html

------------

Loosing Coolant?

http://whoisbyme.blogspot.in/2012/06/loosing-coolant.html

---------------

Coolant temperature sensor dies again and again?

http://schematicsdiagram.blogspot.com/2012/01/coolant-temperature-sensor-dies-again.html

------------

2000 Daewoo Lanos: Where to Add Coolant?

http://repairhelpcenter.blogspot.in/2012/06/2000-daewoo-lanos-where-to-add-coolant.html

Blue Water Warning Light on Dash?

http://whatisbyme.blogspot.in/2012/07/blue-water-warning-light-on-dash.html

---------------

Replacing Oldsmobile Engine coolant sensor?

--------------

How to test Engine coolant temperature sensor?

------------------

Replace Coolant Sensor Module on Oldsmobile?

-----------

These details will help.

Thanks.

Nov 28, 2012 | 1996 Lexus GS 300

1 Answer

Gs300 coolant is bubbling in resevoir,but temp is fine ?


Get coolant temp sensor checked.

Get the coolant pressure tested, its definitely leaking coolant. You will need to get the coolant running line.


Pressure test will help you to know from where exactly coolant/refrigerant is getting leaked.

===========

For complete step by step troubleshooting i suggest you to go through the help links mentioned below :----

Click the link below :-----


Coolant enters in transmission on Toyota Land cruiser?

http://schematicsdiagram.blogspot.com/2012/01/coolant-enters-in-transmission-on.html

--------------

1991 Toyota Camry: Order Coolant Bypass Tube?

http://whatisbyme.blogspot.in/2012/05/1991-toyota-camry-order-coolant-bypass.html

-------------

2002 Toyota Camry: Puff of Blue or White Smoke while Starting?

http://whatisbyme.blogspot.in/2012/05/2002-toyota-camry-puff-of-blue-or-white.html

----------------

1994 Toyota Camry: Coolant Leak?

http://technoanswers.blogspot.in/2012/04/1994-toyota-camry-coolant-leak.html

----------

2006 Cadillac DTS: COOLANT LEAK AT DRIVER SIDE NEAR FIREWALL?

http://schematicsdiagram.blogspot.in/2012/04/2006-cadillac-dts-coolant-leak-at.html

----------

MAF, IAT, MAP and Coolant Level Sensor problem all together on Mazda MPV?

http://schematicsdiagram.blogspot.com/2011/12/maf-iat-map-and-coolant-level-sensor.html

---------------

GMC Engine Coolant Temperature (ECT) Sensor Replacing?

http://schematicsdiagram.blogspot.com/2011/12/gmc-engine-coolant-temperature-ect.html

------------

Loosing Coolant?

http://whoisbyme.blogspot.in/2012/06/loosing-coolant.html

---------------

Coolant temperature sensor dies again and again?

http://schematicsdiagram.blogspot.com/2012/01/coolant-temperature-sensor-dies-again.html

------------

2000 Daewoo Lanos: Where to Add Coolant?

http://repairhelpcenter.blogspot.in/2012/06/2000-daewoo-lanos-where-to-add-coolant.html

Blue Water Warning Light on Dash?

http://whatisbyme.blogspot.in/2012/07/blue-water-warning-light-on-dash.html

---------------

Replacing Oldsmobile Engine coolant sensor?

--------------

How to test Engine coolant temperature sensor?

------------------

Replace Coolant Sensor Module on Oldsmobile?

-----------

These details will help.

Thanks.

Nov 28, 2012 | 1994 Lexus GS 300

2 Answers

Where is the thermostat ?


Please see my tip at http://www.fixya.com/cars/r5929960-s_thermostat . These are generic instructions. Specific instructions are provided below. If you get stuck, please get back to me.

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  1. Disconnect the negative battery cable. Drain the radiator to below the level of the thermostat.
  2. If necessary, remove the air cleaner assembly.
  3. If necessary, disconnect the coolant temperature switch at the thermostat housing.
  1. Remove the upper radiator hose.
  2. Remove the mounting nuts, thermostat housing, thermostat and gasket.

Do not pry the housing off.
To install:
  1. Clean the thermostat housing and the cylinder head mating surfaces.
  2. Insert the thermostat into the rear cylinder head housing with the jiggle pin at the top. The spring side of the thermostat should face the housing.
  3. Position a new gasket onto the studs with the seal print side facing the rear cylinder housing.
  4. Install the thermostat housing and 2 nuts. Tighten the nuts to 14-22 ft. lbs. (19-5 Nm).
  5. Install the upper radiator hose.
  6. If detached, connect the coolant temperature switch.
  7. If removed, install the air cleaner housing.
  8. Fill the cooling system. Connect the negative battery cable, start the engine and check for leaks. Check the coolant level and add coolant, as necessary.

Nov 19, 2010 | 1994 Mazda MX-3

1 Answer

I need to change my thermastat but can not locate it


REMOVAL & INSTALLATION (4 Cyl. eng.) CAUTION
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.
  1. Position a suitable drain pan under the radiator drain **** and drain the cooling system.
  2. On the 1MZ-FE engine, remove the air cleaner cap assembly. Be sure to label all wiring disconnected.
  3. Disconnect the water temperature switch harness from the water inlet housing (except 5S-FE engines).
  4. Remove the oil filter on 5S-FE engines. On the 1MZ-FE engines, remove the heater hose covering the housing.
  5. Loosen the hose clamp and disconnect the lower radiator hose from the water inlet housing.
  6. Remove the two nuts from the water inlet housing and remove the housing from the water pump studs.
  7. Remove the thermostat and rubber O-ring gasket from the water inlet housing. To install:
  8. Make sure all the gasket surfaces are clean. Clean the inside of the inlet housing and the radiator hose connection with a rag.
  9. Install the new rubber O-ring gasket onto the thermostat. On 2SE and 3S-FE engines, align the jiggle valve of the thermostat with the protrusion on the water inlet housing. On 5S-FE engines, align the jiggle valve with the upper side of the stud bolt. On 2VZ-FE and 3VZ-FE engines, align the jiggle valve with the stud bolt. Insert the thermostat into the housing. Fig. 1: Remove the thermostat housing from the engine with the coolant temperature sensor - 1MZ-FE engine 89553p18.jpg
    Fig. 2: Removing the thermostat from the engine - 1MZ-FE engine 89553p19.jpg
    Fig. 3: Always discard the old O-ring from the thermostat, if reusing the old component 89553p20.jpg
    Fig. 4: Always replace the thermostat with the correct temperature specifications 89553p21.jpg
    Fig. 5: Line-up the jiggle valve with the protrusion on the housing - 5S-FE engine 89553g10.gif

  10. 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 inch lbs. (9 Nm) on 4 cyl. engines, 2VZ-FE and 3VZ-FE; 14 ft. lbs. (20 Nm) and 69 inch lbs. (8 Nm) on 1MZ-FE engines. Fig. 6: Thermostat installation - 2VZ-FE and 3VZ-FE engines 89553g11.gif
    NOTE: Don't forget to install a new O-ring onto the water inlet pipe. Apply soapy water to the O-ring prior to installation.
  11. Connect the lower radiator hose to the inlet housing and install the hose clamp. On the 3VZ-FE, tighten the bolt holding the water inlet hose to the alternator belt adjusting bar to 14 ft. lbs. (20 Nm). On the 1MZ-FE engine, tighten the bolt retaining the water inlet pipe to the cylinder head to 14 ft. lbs. (20 Nm).
  12. Attach the water temperature switch connector.
  13. On the 1MZ-FE engines, install the heater hose removed.
  14. Install the oil filter and check the oil level if removed. Install the air cleaner cap assembly on the 1MZ-FE engines.
  15. Fill the cooling system with a good brand of ethylene glycol based coolant.
  16. Start the engine and inspect for leaks.
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Oct 08, 2010 | 1990 Toyota Camry

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

Car overheats


The problem of over-heating could be due to one or all of these defective parts:
(i) thermostat
(ii) radiator
(iii) fan relay
(iv) fan switch
(v) water temperature sensor.
In your case, I suspect that your radiator probably is clogged, so needing replacement.

To Replace the radiator:
a. allow the engine to cool.
b. place a suitable container under the radiator, and drain it out by turning backward the wing-nut under it.
c. open the radiator cap to allow atmospheric air to further push down the coolant.
d. with a piece of pliers, depress the top clamp holding the radiator hose. Do the same for the lower radiator hose.
e. remove from the bottom of the radiator and plug wth suitable bolts, the two transmission fluid rubber lines.
f. with a 10-mm socket and wrench remove the two bolts holding the radiator to the front frame.
g. depress the electrical plug at the bottom of the radiator. Remove its thermo switch at the bottom left hand side of the radiator. (replace with new if changing to new radiator) Also notice two rubber cups at bottom of radiator.
i, installation of the new radiator is reverse of removal. Refill radiator with new coolant.

To replace thermostat:
a. disconnect the negative terminal of the battery.
b. drain the coolant into a container, as
explanied above.
c. remove the upper radiator hose from the thermostat housing on the engine block.
d. remove the two bolts from the thermostat housing. Please note the way it was bolted to the engine. Clean its housing and seating areas.
e. fit a new o-ring to the thermostat, and replace with a new thermostat.
f. tighten its bolts to 14-12-foot pounds.
g. Replace the top and bottom hoses back.
i. refill with new coolant.

To replace the fan relays:
a. open the hood.
b. disconnect the negative battery terminal.
c. locate the meduim-size black plastic box on the driver's side fender. This is where the fan relays are. Look inside the cover of the medium-size plastic box to see the fan relay positions.
d. gently and firmly pull out each fan relay. Replace with new ones as needed.

To replace the water temperature sensor:
a. this is bolted to the top of thermostat housing.
b. unplug it from it location.
c. use a 14-mm deep socket to remove the temperature sensor. Replacement is reverse of removal.

Dec 09, 2009 | 1995 Toyota Camry

2 Answers

How to replace thermostat


1994 Toyota Camry 2.2L EFI DOHC 4cyl
On both diesel and gasoline engines, the thermostat is located in the water inlet housing connected to the lower radiator hose.

R
CAUTION 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.
Gasoline Engines
(see Figures 1, 2, 3, 4, 5, 6 and 7)
  1. Position a suitable drain pan under the radiator drain **** and drain the cooling system.
  2. On the 1MZ-FE engine, remove the air cleaner cap assembly. Be sure to label all wiring disconnected.
  3. Disconnect the water temperature switch harness from the water inlet housing (except 5S-FE engines).
  4. Remove the oil filter on 5S-FE engines. On the 1MZ-FE engines, remove the heater hose covering the housing.
  5. Loosen the hose clamp and disconnect the lower radiator hose from the water inlet housing.
  6. Remove the two nuts from the water inlet housing and remove the housing from the water pump studs.
  7. Remove the thermostat and rubber O-ring gasket from the water inlet housing.
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 2SE and 3S-FE engines, align the jiggle valve of the thermostat with the protrusion on the water inlet housing. On 5S-FE engines, align the jiggle valve with the upper side of the stud bolt. On 2VZ-FE and 3VZ-FE engines, align the jiggle valve with the stud bolt. Insert the thermostat into the housing.
762d5d3.jpg

Fig. Fig. 1: Remove the thermostat housing from the engine with the coolant temperature sensor-1MZ-FE engine

1994ef0.jpg

Fig. Fig. 2: Removing the thermostat from the engine-1MZ-FE engine

4344e0c.jpg

Fig. Fig. 3: Always discard the old O-ring from the thermostat, if reusing the old component

2ff0a56.jpg

Fig. Fig. 4: Always replace the thermostat with the correct temperature specifications

e50fd7b.jpg

Fig. Fig. 5: The thermostat is placed in between the housing and the cylinder head as shown here-2S-ELC and 3S-FE engines

f5e46a6.jpg

Fig. Fig. 6: Line-up the jiggle valve with the protrusion on the housing-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 inch lbs. (9 Nm) on 4 cyl. engines, 2VZ-FE and 3VZ-FE; 14 ft. lbs. (20 Nm) and 69 inch lbs. (8 Nm) on 1MZ-FE engines.
62e4095.jpg

Fig. Fig. 7: Thermostat installation-2VZ-FE and 3VZ-FE engines
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. On the 3VZ-FE, tighten the bolt holding the water inlet hose to the alternator belt adjusting bar to 14 ft. lbs. (20 Nm). On the 1MZ-FE engine, tighten the bolt retaining the water inlet pipe to the cylinder head to 14 ft. lbs. (20 Nm).
  2. Attach the water temperature switch connector.
  3. On the 1MZ-FE engines, install the heater hose removed.
  4. Install the oil filter and check the oil level if removed. Install the air cleaner cap assembly on the 1MZ-FE engines.
  5. Fill the cooling system with a good brand of ethylene glycol based coolant.
  6. Start the engine and inspect for leaks.

continue...

Sep 29, 2009 | 1994 Toyota Camry

1 Answer

How to put anit-freeze in my car?


Vehicle has a coolant overflow reservoir which is a plastic tank on the passenger side engine compartment.This tank is white plastic with a green cap.This is where you can safely add coolant and the system and will be under no pressure as well. Pay attention to the level mark on the side of the plastic tank which is half full.Install 50/50 coolant water mixture into the reservoir. If you for any reason you to elect to remove the radiator cap,do so with a cold engine as the contents will be under pressure at normal operating temperatures which exceeds 200F.

Jul 29, 2009 | 1994 Toyota Camry

1 Answer

'94 Camry radiator fan problem


sounds like the engine coolant temperature sensor.

Jun 01, 2009 | 1994 Toyota Camry

1 Answer

Coolant fan switch


it's hooked up to the temperature sensor. if you don't get a temp light on, the sensor might be bad. it's usually located where the upper radiator hose goes into the engine. also check your thermostat.

Jan 13, 2009 | 1994 Toyota Camry

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