Question about 1999 Buick Century

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Where exactly is the engine coolant temperature sensor on 1999 century

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where exactly is the engine coolant temperature - 15ea660.jpgThis is for the V6 engine, hope it is what you wanted.

Posted on Mar 21, 2011

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1995 buick century cooling fan doesn't work.


I have the 1999 Century and have finally found the Head Gasket is leaky coming out the exhaust. I have to pray for the temperature gauge to come down. The mechanic I go to finally put in nearly a quart of Head Gasket sealant and she ran fine for a couple months and I popped a hose. From here I asked him to put some more sealant in, yet it did not work. I needed coolant and the only way to put it in was to open a relief valve when it was getting hot while running and it took almost a whole gallon. Without knowing of this relief valve I would be dead. I've heard of a way to put a resistor in the coolant fan harness to turn it on earlier, does anyone out there have an answer to this. Thanks a million. DaveF1953@Yahoo.com

Nov 18, 2012 | 1995 Buick Century

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Engine coolant light stays on


Check your coolant reservoir it maybe low on coolant.If its not then the coolant temperature sensor could be faulty.

Oct 25, 2012 | 2000 Buick Century

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Corolla, 1999, P0125


P0125 TOYOTA - Insufficient Coolant Temperature for Closed Loop Fuel Control

Possible causes- Low engine coolant level
- Leaking or stuck open thermostat
- Faulty Engine Coolant Temperature (ECT) sensor
- Engine Coolant Temperature (ECT) sensor harness is open or shorted
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Oct 14, 2012 | 2001 Toyota Corolla

1 Answer

Where is the coolant sensor on a 93 century. 3.3 v6 I can't find where it is located. Top or bottom? Front or back?


A variety of sensors provide information to the ECM/PCM regarding engine operating characteristics. These sensors and their functions are described below. Be sure to take note that not every sensor described is used with every engine application. Coolant Temperature (ECT) The Engine Coolant Temperature Sensor (ECT) is a thermister (a resistor which changes value based on temperature) mounted on the engine coolant stream. As the temperature of the engine coolant changes, the resistance of the coolant sensor changes. Low coolant temperature produces a high resistance (100,000 ohms at 40°C/40°F), while high temperature causes low resistance (70 ohms at 130°C/266°F). The ECM/PCM supplies a 5 volt signal to the coolant sensor and measures the voltage that returns. By measuring the voltage change, the ECM/PCM determines the engine coolant temperature. The voltage will be high when the engine is cold and low when the engine is hot. This information is used to control fuel management, IAC, spark timing, EGR, canister purge and other engine operating conditions. A failure in the coolant sensor circuit should either set a Code 14 or 15. These codes indicate a failure in the coolant temperature sensor circuit.
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It looks like the above, under hood, passenger side, upper engine area, mounted in front side of water outlet (according to Autozone.com).

Oct 08, 2010 | Buick Century Cars & Trucks

2 Answers

I need to find the coolant temperature sensor on a buick 3300


the coolant temperature sensor is located at the top RH end of engine,below generator.

May 18, 2010 | 1990 Buick Century

1 Answer

Where are the temperature sending units located in a 1992 Buick Century


On the 2.5 4cyl. The temp. sensor is located on the
transmission side of the engine below the coolant outlet. The temp sending unit is in the head in front of
the coolant outlet. On the 3.3 v6 the temp sensor is on the right side of the engine below the alternator.
The temp sending unit is to the left of the sensor.
Hope this helps.

Mar 18, 2010 | 1992 Buick Century

3 Answers

Coolant temp sensor


BELOW THE THERMOSTAT HOUSING ON DRIVERS SIDE OF ENGINE

Apr 16, 2009 | 1994 Buick Century

1 Answer

Buick 1999 century replaced the sensor light and still comes on.


your buick century has a low coolant level sensor located in the passenger side of the radiator , sometiomes the sensor get covered with coolant sludge and will show that the cooling system is not filled , sometime the radiator is just still low on coolant . check the radiator when the engine is cold ( IF HOT WAIT !!! 30 mins ) and make sure the level is above the sensor.

Feb 06, 2009 | 1999 Buick Century

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