Question about 1986 Toyota Camry

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Coolant sensor I have a 1986 camry. I am looking for the part number for a cooling system sensor that is on the upper radiator hose housing. There are 4 sensors, 2 with vacuum lines and 2 without, 1 of each is closer to the block and 1 of each is farther from the block. I need the one that does not have any vacuum lines attached, and is farther away from the engine block.

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Hi there
you can go on line and go to the autozone web site and there is a do it yourself section there that you can look up parts and it gives you prices it has been a real big help for me
best regards mike

Posted on Mar 08, 2009

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Want to know whats these codes mean [Engine rpn 704 rpm],[Map sensor 45 kpr], [cool ant temp 141f], [Dtc t caused rreezerrame p1281]. for a 2000 grand cherokee


Hi, the first part is data taken along with the code. The code P1281 indicates the engine is running cold (141 degrees--should be at least 190). Is your temp gage running lower than you are used to? If yes, it may be your thermostat has failed open. I have pasted below instructions for replacing the thermostat. Please let me know if you have any questions, and thanks for using FixYa.


3.7L & 4.7L Engines WARNING Do not loosen radiator drain **** with system hot and pressurized. Serious burns from coolant can occur.


NOTE Do not waste reusable coolant. If solution is clean, drain coolant into a clean container for reuse. If thermostat is being replaced, be sure that replacement is specified thermostat for vehicle model and engine type.

  1. Disconnect negative battery cable at battery.
  2. Drain cooling system.
  3. Raise vehicle on hoist.
  4. Remove splash shield.
  5. Remove lower radiator hose clamp and lower radiator hose at thermostat housing.
  6. Remove thermostat housing mounting bolts, thermostat housing and thermostat.

To install:
  1. Clean mating areas of timing chain cover and thermostat housing.
  2. Install thermostat (spring side down) into recessed machined groove on timing chain cover.
  3. Position thermostat housing on timing chain cover.
  4. Install two housing-to-timing chain cover bolts. Tighten bolts to 115 inch lbs. (13 Nm).
    CAUTION Housing must be tightened evenly and thermostat must be centered into recessed groove in timing chain cover. If not, it may result in a cracked housing, damaged timing chain cover threads or coolant leaks.
  5. Install lower radiator hose on thermostat housing.
  6. Install splash shield.
  7. Lower vehicle.
  8. Fill cooling system.
  9. Connect negative battery cable to battery.
  10. Start and warm the engine. Check for leaks.


Removal & Installation, 4.0 liter engine

  1. Disconnect the negative battery cable.
  2. If necessary, disconnect the coolant temperature sensor electrical connector.
  3. Disconnect the upper radiator hose from the thermostat housing.
  4. Remove the attaching bolts and lift the housing from the engine.
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Remove the thermostat and gasket.
To install:
  1. Clean all gasket surfaces thoroughly.
  2. Place the thermostat in the housing with the spring inside the engine.
  3. Install a new gasket with a small amount of sealing compound applied to both sides.
  4. Install the water outlet and tighten the mounting bolts to 200 inch lbs. (23 Nm) on V-8 engines and 15 ft. lbs. (20 Nm) on non-8 cylinder engines.
  5. Install the upper radiator hose to the housing and tighten the hose clamp.
  6. Connect the coolant temperature sensor connector to the housing.
  7. Refill the cooling system.

Apr 13, 2011 | 2000 Jeep Grand Cherokee

1 Answer

How to replace a thermostat


2.0L Engine
SOHC ENGINE
(see Figure 17)
  1. Disconnect the negative battery cable.
  2. Remove the air cleaner outlet tube.

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. Drain the cooling system until the level is below the thermostat.
  2. Unplug the coolant temperature sender and coolant temperature sensor electrical connections.
  3. Disconnect the upper radiator hose and heater coolant hose from the thermostat housing.
  4. Unfasten the thermostat housing bolts.
  5. Remove the thermostat housing and the thermostat.
  6. Clean the gasket surfaces thoroughly until all traces of the old gasket residue are removed.

Make sure the tabs on the thermostat engage properly into the slots in the housing.


zjlimited_290.jpg

Fig. 17: Remove the thermostat housing mounting bolts-2.0L SOHC engine

To install:

  1. Install the thermostat in the housing making sure the tabs engage.
  2. Install any new gasket required.
  3. Install the thermostat, housing and bolts. Tighten the bolts to 8-12 ft lbs. (10-16 Nm).
  4. Connect the upper radiator hose and heater coolant hose to the thermostat housing.
  5. Attach the coolant temperature sender and coolant temperature sensor electrical connections.
  6. Fill the cooling system.
  7. Install the air cleaner outlet tube.
  8. Connect the negative battery cable.
  9. Start the car and check for leaks.

DOHC ENGINE
(see Figures 18 and 19)
  1. Disconnect the negative battery cable.
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. Drain the cooling system until the level is below the thermostat.
  2. Unplug the Camshaft Position (CMP) sensor electrical connection.
  3. Unfasten the water hose connection retaining bolts and move the connection aside.
  4. Remove the thermostat and seal from the housing.
zjlimited_291.jpg

Fig. 18: Location of the water hose connection mounting bolts-2.0L DOHC engine

zjlimited_292.jpg

Fig. 19: Remove the thermostat and seal. Inspect the seal for damage and replace as necessary-2.0L DOHC engine



To install:

  1. Inspect the seal and replace it if damaged.
  2. Install the thermostat and seal in the housing.
  3. Install the water hose connection and bolts. Tighten the bolts to 71-97 inch lbs. (8-11 Nm).
  4. Attach the Camshaft Position (CMP) sensor electrical connection.
  5. Fill the cooling system.
  6. Start the car and check for leaks.

Hope helps (remember to rate this answer).

Dec 21, 2010 | 1999 Ford Escort

2 Answers

Where is the thermostate located on my 2005 jeep liberty


Thermostats almost always reside in a housing at the engine side end of the upper radiator hose. Drain coolant first, then loosen radiator hose to access thermostat housing. If you can't find the housing, consult your vehicle service manual for location.

Loosen the bolts that hold down the thermostat housing. Remove the housing to reveal the thermostat.

Note the location and orientation of thermostat relative to the engine. Remove thermostat.

Use a scraper to remove old gasket material from all mounting surfaces.

Place new gasket on housing. Use a small amount of grease or adhesive to hold it in place during reassembly.

Make sure new thermostat is oriented properly and reinstall the housing.

Reconnect all hoses. Close radiator petcock. Refill cooling system with recommended 50/50 blend of water and coolant. Run engine and heater to purge air from cooling system. Recheck the coolant level once engine is cool.
found info on web site listed
Good luck

Dec 17, 2010 | 2005 Jeep Liberty

1 Answer

I need to change the thermostat


REMOVAL
  1. Remove upper intake manifold.
  2. Partially drain cooling system below the thermostat level.
  3. Remove upper radiator hose from outlet connector.
  4. Remove coolant recovery system hose from outlet connector.
  5. Remove coolant outlet connector bolts.
  6. Remove thermostat assembly, and clean sealing surfaces.
INSTALLATION

25a9b05.gif
  1. Place the new thermostat assembly into the coolant outlet connector, aligning air bleed with the location notch on outlet connector.
  2. Install coolant outlet connector with thermostat in position onto thermostat housing. Tighten bolts to 12.5 Nm (110 inch lbs.).
  3. Install upper radiator hose.
  4. Connect the coolant recovery system hose.
  5. Install upper intake manifold.
  6. Fill cooling system.
  7. see thermostat mounting are below
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Oct 19, 2010 | 2002 Chrysler PT Cruiser

1 Answer

Were is my thermostat in my 1997 eagle vision


REMOVAL & INSTALLATION
  1. Disconnect negative battery cable. CAUTION
    Do not remove the radiator pressure cap with the cooling system hot and under pressure. Serious burns from hot, pressurized coolant can result.
  2. Allow cooling system to cool completely. Place a pan under the radiator drain, located at the lower right side of the radiator. Open the valve to drain the cooling system to a level just below the thermostat. Do NOT drain the cooling system completely, unless the coolant is being changed. Close the valve.
  3. Loosen the radiator hose clamp from the upper radiator hose at the thermostat housing and if necessary disconnect the hose from the housing. Fig. 1: Loosen the radiator hose clamp from the upper radiator hose at the thermostat housing 88173p06.jpg
    Fig. 2: If necessary, separate the upper hose from the thermostat housing (it is not required) 88173p11.jpg

  4. Remove the thermostat bolts and housing. Fig. 3: Loosen the thermostat housing bolt with the proper size socket 88173p07.jpg

  5. Remove the thermostat and discard the gasket. Thoroughly clean both gasket sealing surfaces. Fig. 4: Separate the housing to access the thermostat 88173p08.jpg
    Fig. 5: Lift the thermostat out . . . 88173p09.jpg
    Fig. 6: . . . then clean the mating area 88173p10.jpg
    To install:
  6. Clean the thermostat housing bolts well. On any engine, bolts that thread into the water jacket are subject to rust and corrosion. A bolt with rust or debris in the threads can easily strip out the threads in an aluminum manifold requiring a time-consuming thread repair operation. Clean the bolts well and lightly lubricate before installation.
  7. Install the thermostat into the recess in the intake manifold. Place a new gasket, moistened with water, on the water inlet mating surface on the intake manifold.
  8. Install the thermostat housing over the gasket and thermostat and tighten the mounting bolts to 21 ft. lbs. (28 Nm) on the 3.3L engine and 105 inch lbs. (12 Nm) on the 3.5L engine.
  9. Connect the upper radiator hose to the thermostat housing and tighten the radiator hose clamp.
  10. Refill and bleed the cooling system.
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Aug 19, 2010 | 1997 Eagle Vision

1 Answer

How to change the radiator fan?


Electric Engine Fan - Fan Switch

Removal & Installation
2.7L Engine
  1. Disconnect negative battery cable.
  2. Partially drain cooling system.
  3. Disconnect the electrical connector .
  4. Remove engine coolant sensor from coolant outlet tube .
To install:
  1. Apply thread sealant to sensor threads.
  2. Install engine coolant temperature sensor into coolant outlet tube.
  3. Tighten sensor to 20 ft. lbs.(28 Nm) torque.
  4. Connect electrical connector to engine coolant temperature sensor .

3.2L And 3.5L Engines
  1. Disconnect negative battery cable.
  2. Partially drain cooling system.
  3. With the engine cold, disconnect coolant sensor electrical connector.
  4. Remove sensor.
To install:
  1. Install engine coolant temperature sensor.
  2. Tighten sensor to 20 ft. lbs.(28 Nm) torque.
  3. Attach electrical connector to sensor.
  4. Connect negative battery cable.
Removal & Installation
  1. Disconnect negative battery cable.
  2. Partially drain cooling system.
  3. Remove upper radiator hose.
  4. Disconnect cooling fan electrical connector.
  5. Remove cooling fan mounting bolts.
  6. Remove radiator cooling fan assembly from vehicle.

    f9d971c.jpg
    Fig. Removal and installation of the radiator fan-2.7L Engine shown
To install:
  1. Position radiator cooling fan assembly in vehicle.
  2. Install cooling fan mounting bolts. Tighten to 50 inch lbs. (6 Nm)
  3. Connect cooling fan electrical connector.
  4. Install upper radiator hose .
  5. Fill cooling system.
  6. Operate engine until it reaches normal operating temperature.
  7. Check cooling system and automatic transmission for correct fluid levels.

Hope helps (remember comment and rated this).

Jul 13, 2010 | 2001 Dodge Intrepid

2 Answers

Need to fix new thermostat


Your thermostat is located under a metal housing on the top of the engine. The upper radiator hose connects to this housing. To change the thermostat you basically need to drain the radiator after your engine is cold, disconnect the upper radiator hose from the engine, and remove the bolts from the small housing. replace the thermostat, and clean the surfaces on both sides and replace the gasket too. reinstall the housing, attach the hose, and refill the radiator. start the engine, warm it up and check for leaks, then re check the coolant level after the engine cools off again.
Here's a link to a good article on replacing your thermostat...
http://www.automedia.com/Keep_Your_Eye_on_the_Thermostat/ccr20041201th/1

Apr 21, 2010 | 1995 Toyota Camry

1 Answer

Help me figure out how to do a thermostat


56566981
REMOVE OR DISCONNECT


  1. Disconnect battery ground cable.
  2. Drain cooling to level below thermostat.
  3. Disconnect radiator hose and heater hose from thermostat housing.
  4. Disconnect electrical connector from coolant sensor.
  5. Remove throttle body cooling hose.
  6. Remove thermostat housing attaching bolts, then remove thermostat housing and thermostat.


INSTALL OR CONNECT

  1. Thermostat.
  2. Thermostat housing and gasket.
    • Tighten bolts to 26 Nm (19 lbs. ft.).
  1. Heater and throttle body hoses.
  2. Coolant sensor electrical connector.
  3. Upper radiator hose.
  4. Fill and pressure test cooling system. Refer to Filling. See: Service and Repair

Feb 12, 2010 | 1992 Pontiac Grand Am

1 Answer

Change thermostat on 1998 toyota camry


1. Write down your radio code if it has some anti-theft device.
2. Allow the engine to cool down for about 3-hours before the start of this operation.
3. Open the hood, and disconnect the battery negative terminal. Tuck the negative terminal aside so it won't flip back.
4. Locate the radiator drain-plug (plastic wing-nut) on the lower back side of the radiator, and turn it backward to remove it.
5. Place a container under the radiator to catch the anti-freeze coolant.
6. Remove the radiator cap.
7. Once the coolant is drained, trace the upper radiator hose to where it ends on the engine(thermostat housing), and remove the hose with a medium size plier.
8. Loosen the three bolts holding the thermostat housing. Gently take out the housing.
9. Notice the position the thermostat was previously installed.
10. Replace the old thermostat, and the o-ring around it. Clean its mounting area. Notice that the o-ring fits around the thermostat.
11. Replace the thermostat housing and torque the three bolts to 78-inch pounds. Replace the upper hose.
12. Replace the radiator drain-plug.
13. Re-use the antifreeze coolant and be careful no dirt goes in with the coolant into the radiator.
14. Return the radiator cap.
15. Reconnect the negative battery terminal.
16. Start the car and check for leak.

Important: Anti-freeze coolant harmful to the environment. Return unwanted anti-freeze coolant to collection areas.

Dec 17, 2009 | 1998 Toyota Camry

1 Answer

Thermostat housing replacement


These are the steps to replace the thermostat but are applicable to remove and replace the housing also. 2.0L DOHC Zetec Engine WARNING Do not mix Standard (green) Coolant with Extended Life Coolant (orange). If mixing occurs, drain engine cooling system and refill with originally equipped coolant type. If this contamination occurs the service change interval on Extended Life Coolant will be reduced from 6 years/150,000 miles to 3 years/30,000 miles.

  1. Disconnect the battery ground cable.
  2. Drain the engine coolant to a point below the water thermostat.
  3. Disconnect the connector from the camshaft position sensor.
  4. Remove the bolts and move to one side the water hose connection.
  • Remove the water thermostat and seal from the water thermostat housing.
  • Inspect the seal and the water thermostat.
  • To install:
    1. Replace the thermostat and seal into the housing.
    2. Connect the connector to the camshaft position sensor.
    3. Fill the cooling system.
    4. Start the engine and check all hoses and connections for leaks. Allow the engine to warm up so that the water thermostat opens.
    5. Stop the engine. Top off the coolant recovery reservoir as necessary to maintain minimum cold fill level.
    e990057.gif

    2.0L SOHC Spi Engine
    1. Disconnect the battery ground cable.
    2. Remove the air cleaner outlet tube.
    3. Drain the engine coolant to a point below the water thermostat.
    4. Disconnect the water temperature indicator sender unit and the engine coolant temperature sensor electrical connectors.
    5. Disconnect the upper radiator hose and the heater coolant hose from the water thermostat housing.
    6. Remove the water thermostat housing bolts, the water thermostat housing, and the water thermostat.
    To install:
    NOTE Make sure all of the gasket surfaces are free of all gasket material. Make sure the tabs on the engage properly into slots in thermostat housing.

    1. Install the thermostat housing bolts, thermostat housing and the thermostat.
    2. Connect the upper radiator hose and the heater coolant hose to the thermostat housing.
    3. Connect the water temperature indicator sender unit and the engine coolant temperature sensor electrical connectors.
    4. Fill the cooling system with only Ford Premium Engine Coolant E2FZ-19549-AA (in Oregon F5FZ-19549-CC, in Canada, Motorcraft CXC-8-B) or equivalent meeting Ford specification in a 50/50 mixture with water.
    5. Start the engine and check all hoses and connections for leaks. Allow the engine to warm up so that the water thermostat opens.
    6. Stop the engine. Top off coolant recovery reservoir as required to maintain minimum cold fill level.

    Dec 07, 2009 | 2000 Ford Escort

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