Question about 1991 Lincoln Town Car

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Temperature reading is not correct

The temperature reading is not accurate

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Check the gauge by removing the wire to the sender unit and shorting out on the head . If it goes straight to hot then replace the sender unit ( the one that has one wire only to it.)

Posted on Mar 19, 2014

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Posted on Jan 02, 2017

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How do you read the temperature of engine. Thanks


There are several methods. You can use the dash gauge but it is not accurate. The other ways are to use an infrared thermometer, an OBD reader, or manual gauge in the coolant

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My 2005 won't accurate and I change the cams. What is next ?


Deviating only slightly or within acceptable limits from a standard. Capable of providing a correct reading or measurement: an accurate scale.
Please provide a detail question.

Jun 01, 2015 | Cars & Trucks

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Truck never reaches operating temperature


low operating temperatures is an indication of an air lock in the cooling system
gauges need the sender unit to be fully immersed in coolant to work but if they are not then the variable resistance material in the sender bulb cannot accurately relate to the coolant temperature
example if you have leak develop in a good system and you do not regularly scan your gauges like a good drive will do. it is possible that you will smell a dying engine yet when yo look at the gauge it will be reading cool to cold because the coolant has dropped to a point where the sender is no longer in contact with the coolant

May 21, 2015 | 1989 Ford F 150

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Temp gauge not accurate


Sometimes bad temperature readings can be corrected by cleanning ground connections at the battery, chassis ground, engine ground and instrument cluster ground.

Nov 10, 2013 | 1997 Subaru Legacy

1 Answer

Temperature display isn't accurate


Hi Dale. Look under the front bumper either on the left or right trim panel. The trim panels are triangle in shape. An outside temp sensor usually sits in this area. The sensor may be missing. BMW has the sensor, wire, and connector available sperately if they are missing or damaged. It will cause the outside reading to be -40 and can cause the a/c compressor not to operate.

Feb 29, 2012 | 2000 BMW 3 Series

1 Answer

After i turn off engine it sounds like boiling water but temp gauge reads cool and no water leaks out


I would recommend checking the coolant level in the radiator while the engine is cool. If the coolant level is low, the temperature gauge will not function properly and can read cool even though the engine is actually overheating. The cooling system should be checked for proper operation using a scan tool and an infrared thermometer to verify that:

1. The thermostat is opening at the correct temperature
2. The coolant is flowing through the radiator correctly
3. The engine coolant temperature sensor is providing accurate data to the engine control module.
4. The electric radiator cooling fans are turning on at the correct temperature

If there are any problems found by checking the 4 items listed above, further diagnosis may be needed to locate the actual CAUSE of the problem.

Oct 23, 2011 | 2002 Dodge Intrepid

2 Answers

Needle on temp gauge stays on hot


if the temperature gauge never moves its probably just the coolant temperature sender. Replace that. but i honestly recommend buying a new temperature gauge with more accurate readings. they arent very pricey and they are easy to install

Jun 15, 2011 | 1999 Ford Escort

1 Answer

I have a 2005 Jeep Grand Cherokee. My problem is that my C/T guage reads about three degrees higher on the outside temperature side than the actual temperature is. I realize that might be a minor problem,...


Are you talking about the coolant temperature (c/t) or the ambient temperature (outside temp). If you're refering to the ambient temperature the problem is the sensor is located under the radiator support and picks up the temperature off the pavement this is done intentionally to help detect icing conditions and unfortunatley there is no calibration for the sensor.

May 14, 2009 | 2005 Jeep Grand Cherokee

1 Answer

Gage reads 10-50 degrees below actual tempiture


The needle on the dash gage can be pulled off and slipped back onto the stem of the gage. First get an accurate temp gage to be sure what the engine temp is operating at. Then remove the face of the dash gages and remove the needle and place it back onto the stem to reflect the current correct engine temp and you should be good.

Mar 11, 2009 | 2001 Ford F150 Styleside SuperCrew

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