Question about 1983 Oldsmobile Toronado

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I'm looking for the coolant temperature switch on an '83 Toronado.

Where is it located?

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Most likely it is on the radiator near the upper tank. Could also be in the intake manifold near the front of the engine. Less likely it could be screwed into one of the cylinder heads.

Posted on Jul 03, 2017


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Temp sensor on 1998 toyota tacoma 3400

The engine coolant temperature sensor is usually located on the thermostat housing. This sensor controls the readings of the coolant temperature gauge in your vehicle when the ignition switch is ON .Here's a link to the sensor. REMOVAL & INSTALLATION

  1. Drain the coolant from the vehicle.
  2. Disconnect the engine wiring protector from the brackets.
  3. Disconnect the sensor wire.
  4. Using a 19mm deep socket, remove the sensor and gasket.
To install:
  1. Apply a thin coat of Loctite or equivalent to the switch. By hand, carefully thread the switch into the engine. If resistance is felt at all, remove the switch and inspect the threads for any damage. Continue to install the switch. Once installed, tighten to 14 ft. lbs. (20 Nm).
  2. Connect the sensor wiring.
  3. Install the engine wire protector to the brackets.
  4. Refill the coolant. Start the engine and check for leaks.

Aug 01, 2015 | 1998 Toyota Tacoma

1 Answer

Where is the engine coolant temperature switch located

Look in area around the top radiator hose on the head/block and the sensor will be square in shape , probably red in colour and have a connection with 2 wires in it.. failing that see the service dealer or a shop that specialises in repairs your vehicle..

Oct 05, 2014 | 1998 Audi A4

2 Answers


I don't know what a March is, not sold in the US under that name. But I would suspect on that newer a model, the ecu turns the fan on when the Coolant Temperature Sensor on the engine registers a hot coolant temperature which requires the fan for extra cooling.

On older model Nissans (like my '87 Sentra) there is a switch about half way down on the radiator (look for a 2 wire connector to it). When the coolant temperature reaches 192 degrees F., the thermistor contacts close, and the fan relay turns the fan on. When the temperature drops below 181 degrees F., the contacts open and the fan stops running.

Oct 04, 2014 | Cars & Trucks

1 Answer

Coolant light on in my 98vw beetle and isn't low

Could be your coolant temperature switch,here's what they look like,it's located by thermostat housing.

Jan 15, 2013 | Cars & Trucks

1 Answer

2003 Chevy Malibu where is the coolant temperature switch

2.2L (L61) Engine
The Engine Coolant Temperature (ECT) sensor is located just to the left of the exhaust manifold in the thermostat housing between the two coolant pipes.

3.5L (LZ4) & 3.9L (LZ9) Engine
The Engine Coolant Temperature (ECT) sensor is located on the left cylinder head at the rear. It is just above the transaxle mounting bolts.

Hope helps (remember to rate and comment this answer).

Sep 19, 2011 | 2003 Chevrolet Malibu

1 Answer

Need to locate my directional switch for my 1991 oldsmobile toronado

If you mean the turn signal switch, it's inside the steering column head under the steering wheel.

Aug 27, 2011 | 1991 Oldsmobile Toronado

1 Answer

Temperature gauge is not working. where is cooling sensor located and what does it look like

This component detects the temperature of the engine coolant and relays the information to the electronic control assembly. The sensor is located by the heater outlet fitting or in a cooling passage on the engine, depending upon the particular type vehicle. The function of the sensor is to modify ignition timing, control EGR flow and regulate the air/fuel mixture. On vehicles equipped with the electronic instrument cluster, the sensor is also used to control the coolant temperature indicator.


Fig. 1: Coolant temperature sensor (click image for zoom)

When the battery cable has been disconnected and reconnected, some abnormal drive symptoms may occur while the powertrain control module relearns its adaptive strategy. The vehicle may need to be driven 10 miles (16 km) or more to relearn the adaptive strategy.

  1. Disconnect the negative battery cable.
  2. Unfasten the wire harness attached to the temperature switch.
  3. Place a suitable drip pan below the sensor to capture any coolant that may spill out during removal and installation.
  4. Using a suitable wrench or equivalent, remove the switch from the engine. Remove the washer from the switch and discard.


Fig. 2: Coolant sensor at the top of the engine block

Hope helps (remember to rate this answer).

May 10, 2011 | 1991 Ford Aerostar Extended

2 Answers

Hello,I just bought a 1987 Olds Toronado

is yours carb,if not 23- manifold air temperature (mat) sensor or circuit (1990 and earlier models) 23- intake air temperature (iat) sensor circuit (fuel-injected models) if its carb,,,,,23- mixture control (m/c) solenoid or circuit (carbureted models)

Nov 17, 2009 | 1987 Oldsmobile Toronado

2 Answers

Location of the temperature sending unit on a 1991 olds toronado

Ok, you have three sensors on this engine that work together to manage the temperature reading that are sent to the gauge. i recommend checking all three to be safe. i will list the sensors and, locations below.

1. Coolant temperature sensor- Under hood, driver side, upper engine area, above transmission bell housing, mounted in driver side end of intake manifold.

2. Engine Temperature sensor- Under hood, driver side, upper engine area, mounted on rear cylinder head

3. Temperature switch.- Under hood, center, lower engine area, above oil filter, rear of coolant temperature sensor, mounted in engine block

Jul 09, 2009 | 1991 Oldsmobile Toronado

1 Answer

Coolant temperature relay switch

Most vehicles use a coolant temperature sensor which is located near the thermostat directly connected into the coolant line, or near the thermostat housing, there are relays for the cooling fan which is usually located in the power distribution box under the hood.

Mar 16, 2009 | 1998 Chevrolet Cavalier

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