Question about 2003 Mercury Sable

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Temperature Gauge Stays Cold on 2005 Sable

The needle on my temp gauge stays below the first line all the time. The check engine light is on and the code is for "coolant temperature below thermostat threshhold". I replaced the thermostat, but didn't have an impact. The heater warms up and blows hot air without any problem, even in 10 degree weather. I'm thinking the ECT Sensor may be faulty. Does that sound like the case to you? If so, where can I locate the ECT Sensor on my engine? It's a DOHC 3.0 liter engine. Thank you much!

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Look on the intake it should be there

Posted on Jan 26, 2009

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1 Answer

No guages working


If all voltages checked ok, then most probably its faulty instrument cluster board on which gauges are connected. Yes if cluster circuit board looks ok, then also it can be faulty. Somewhere there is minute short or burn on board then such problem arises.


Also check the fuse box. One under hood and other under dash.

Inspect each and every fuse and see if all are fine or not.


---------------

For more troubleshooting on these cluster gauges I suggest you to refer the list of help links mentioned below. Its step by step instructions will help you to confirm the exact cause of problem in these conditions: ---------


Click the link below: ------


2004 Toyota Tundra: Oil Gauge and Temp Gauge Not Working?

http://howtobyme.blogspot.in/2012/05/2004-toyota-tundra-oil-gauge-and-temp.html

--------------

2005 Lexus SC430: Fuel Door, Dome light and Fuel Gauge Fuse Location?

http://howtobyme.blogspot.in/2012/05/2005-lexus-sc430-fuel-door-will-not.html

----------

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http://technoanswers.blogspot.in/2012/04/toyota-4runner-temperature-gauge-sensor.html

------------

Temperature gauge sits over half way mark?

http://schematicsdiagram.blogspot.in/2012/04/temperature-gauge-sits-over-half-way.html

---------------

Heater blows intermittently and temp gauge goes erratic?

http://technoanswers.blogspot.com/2012/01/heater-blows-intermittently-and-temp.html

----------

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http://technoanswers.blogspot.com/2012/01/temperature-gauge-does-not-move-and-no.html

-----------

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http://technoanswers.blogspot.in/2012/06/2003-pontiac-grand-prix-erratic-fuel.html

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-------------

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---------------

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http://schematicsdiagram.blogspot.com/2011/12/fuel-gauge-jumps-from-empty-to-full.html

--------------

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http://repairhelpcenter.blogspot.in/2012/02/gas-gauge-stuck-on-empty-on-2002.html

---------------

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-----------------

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http://technoanswers.blogspot.com/2012/01/fuel-gauge-drops-to-empty.html

----------------

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http://technoanswers.blogspot.in/2012/02/dodge-neon-gauges-not-working.html

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http://schematicsdiagram.blogspot.com/2011/12/temperature-gauge-went-up.html

------------

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http://technoanswers.blogspot.in/2012/02/temperature-gauge-stays-at-cold-on.html

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http://repairhelpcenter.blogspot.in/2012/02/how-to-replace-instrument-panel-and.html

-----------

How to remove instrument panel on Chevrolet car?

http://technoanswers.blogspot.in/2012/02/how-to-remove-instrument-panel-on.html

-----------

How to remove control panel on Buick regal?

http://howtobyme.blogspot.in/2012/02/how-to-remove-control-panel-on-buick.html

---------------


These details will help.

Thanks.

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2 Answers

Temperature needle stays on the hot and doesnt move even when the car is cold?


YOur guage is faulty. Your will need to replace your guage if it stays in the hot position even when your car is off and your key is out of the ignition. If it only rises to hot when you turn the key to the run position, you have a wire between your guage and your temp sending unit that has been gounded out. Usually this happens when a person opens their hood to add oil or perform some minor maintenance on the engine and inadvertantly bumps the sensor or switch or wiring. This causes about 65% of these minor issues people incur, but if it does stay all the way up with your key out of the ignition switch, then you will need to replace your temp guage.

Oct 18, 2012 | Ford Escort Cars & Trucks

1 Answer

Temperature gage fluctuates when driving my 1996 mazda protege


Well sounds like first start your car record where the temp needle reads, then let the engine warm up (with out driving) then rev the engine to about 3500-4000rpm a couple times does your needle move at all record then hold your rpm at 3500 for about 5-10 sec does this get the gauge to drop? sounds like you may "if not over heating at all and coolant level and circulation is good" have a circuit problem, you can test this by going to auto zone and ask for a scan to be done on your car when the plug into your OBD 2 ask them to go into DATA STREAM and then check to see what temp your ECM thinks the engine coolant is at does it match your gauge at idle and at 3500rpm if not its a faulty circuit

Jan 15, 2012 | 1996 Mazda Protege

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