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Old 06-28-2010, 09:16 PM   #1 (permalink)
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Default Temperature gauge not working

I have a 2001 outback H4 the temperature gauge quit working in it so I went to NAPA and asked the guy which part it needed he gave me a temperature sender that runs the gauge. I can't find the little one pin temperature sensor anywhere on the engine. does anyone know where it is located or if I even have the right part.
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Old 06-29-2010, 07:15 AM   #2 (permalink)
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Can't tell whether you have the right part without more information and tests, but the temperature gauge sensor is located on the back side of crossover pipe (water pipe) on top of the engine. See: http://opposedforces.com/parts/legac.../water_pipe_1/

Some years have two sensors in that same area, one for the temp gauge, and the other for the engine control module. Also, it will be necessary to drain down the coolant before removing a sensor; otherwise it will spill out through the opening when the sensor is out.

However, before replacing the sensor it might be worthwhile to check the wiring -- make sure the connector is on and the contacts are clean. Also, the sensor can be tested, at least partially, by measuring its resistance.

If you're not familiar with doing this type of work, I would suggest bringing the car to a mechanic to first diagnose the actual cause of the malfunctioning temperature gauge, befoer replacing parts.
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Old 06-29-2010, 10:12 PM   #3 (permalink)
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Quote:
Originally Posted by plain OM View Post
Can't tell whether you have the right part without more information and tests, but the temperature gauge sensor is located on the back side of crossover pipe (water pipe) on top of the engine. See: http://opposedforces.com/parts/legac.../water_pipe_1/

Some years have two sensors in that same area, one for the temp gauge, and the other for the engine control module. Also, it will be necessary to drain down the coolant before removing a sensor; otherwise it will spill out through the opening when the sensor is out.

However, before replacing the sensor it might be worthwhile to check the wiring -- make sure the connector is on and the contacts are clean. Also, the sensor can be tested, at least partially, by measuring its resistance.

If you're not familiar with doing this type of work, I would suggest bringing the car to a mechanic to first diagnose the actual cause of the malfunctioning temperature gauge, befoer replacing parts.

I am comfortable with the repairs and know how to do the test with a multimeter. I found a sensor with a 3 prong connector and it checked out to be fine I did not however find the sensor that you mentioned I am going to go out to look tonight and see if it is working. Thanks.
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Old 06-29-2010, 10:42 PM   #4 (permalink)
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never mind we are talking about the same sensor. this is the one they gave me and said that it ran the gauges and the 3 prong runs the rest. Niehoff Ignition Temperature Sender TS26991 (TS26991) | Frugal Mechanic
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