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Roadside Jerry
Roadside Jerry, Auto Mechanic
Category: Car
Satisfied Customers: 2948
Experience:  Auto Mehanic 39 years,30 with the NYPD Fleet Service Division
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1999 Olds Aurora: It is not on thermostat collar

Customer Question

1999 Olds Aurora
Need location for sensor. It is not on thermostat collar.
Submitted: 8 years ago.
Category: Car
Expert:  Roadside Jerry replied 8 years ago.

Hello Tam, I am sending the location and an illustration for the sensor.Thanks for using Just Answer.Jerry


Customer: replied 8 years ago.
We cant find it there. The part we have here is a Duralast part number SU109. Anything?
Expert:  Roadside Jerry replied 8 years ago.

Hello Tam,looking in the wiring diagram it shows the same location.Yellow and black wires going to it.It may not be in clear sight,you may hace to remove air ducts to see it.Jerry


Expert:  Roadside Jerry replied 8 years ago.

Hi Tam,sending some more info this first ant another to follow,hope they help,Jerry.

Document ID# XXXXX
1999 Oldsmobile Aurora


Engine Coolant Temperature Sensor Replacement

Removal Procedure


Notice: Allow sufficient time for the engine to cool before removing the ECT sensor. Excessive coolant loss or personal injury may result if the engine is hot.

Notice: Use care when handling the coolant sensor. Damage to the coolant sensor will affect the operation of the fuel control system.

  1. Partially drain the coolant system.
    Object Number: 26349  Size: SH
    View Full Image

  2. Disconnect the ECT sensor connector.
  3. Remove the ECT sensor.

Installation Procedure


Notice: A non-hardening sealer should be applied to the sensor threads prior to installation to prevent coolant leaks. Use P/N(NNN) NNN-NNNNor equivalent.

    Object Number: 26349  Size: SH
    View Full Image

    Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  1. Install the ECT sensor.


    Tighten the ECT sensor to 20 N·m (15 lb ft).

  2. Connect the ECT sensor connector.
  3. Refill the coolant system.


Document ID# XXXXX
1999 Oldsmobile Aurora


Expert:  Roadside Jerry replied 8 years ago.

Hello Tam,here is the second illustration. Also there is a coolant sensor at the bottom of the plastic surge tank for the cooling system,it is a coolant level sensor.Hope you find the sensor your looking for,Good luck Jerry.

Item #7 in picture

Document ID# XXXXX
1999 Oldsmobile Aurora

FIGURE Engine Controls Components - Bank 1(c)

Object Number: 186952  Size: MF
View Full Image

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