Question about Acura CL

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The temperature gauge goes up when car starts to HOT like its out of calibration. the engine is not overheating

Where does the idiot hot cold gauge gets its feed or info? My temp gauge goes up to hot as soon as you start engine but engine is not over heating.

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Check that the wire to the temp sender unit has not fallen off and is shorting out on the head/block. The power comes from the ignition switch through the gauge down to the sender unit and because the sender is a temperature controlled resistance unit the voltage is very low and so the gauge reads cold . as the temperature heats up , the resistance is decreased and so the voltage is increased though the gauge and the needle reads higher.. Hench if the gauge goes directly to hot on start up the wire is shorting out or the sender unit is faulty.

Posted on Mar 09, 2014

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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Anonymous

  • 405 Answers

SOURCE: After car heats up (slow to heat) it stil blows cold until moving

http://www.fixya.com/cars/t1386554-91_ford If this doesn't help you tell me more, if it does, please vote me fixya, otherwise please do not give me any rating at all, the only compensation I get is my Fixya score, Merry Christmas.

Posted on Dec 22, 2008

Anonymous

  • 66 Answers

SOURCE: 2006 Ford explorer/No heat /overheating

Sounds like you are either low on coolant, or a head gasket failure.

Posted on Jan 06, 2009

Anonymous

  • 2 Answers

SOURCE: Dash Temp Gauge reading extremely hot

I had an issue with my 95 taurus and we ended up having to replace the thermometer

Posted on Mar 05, 2009

Anonymous

  • 25 Answers

SOURCE: Temperature gauge problem on a 1987 Samurai

There's two sending units in the intake. The little on with single prong at the t-stat housing is for the guage and the bigger one plastic connector is for ecm.

Your signal is getting grounded somewhere.

Posted on Mar 17, 2009

Anonymous

  • 7 Answers

SOURCE: temp gauge reads hot when cold

That wire you are unplugging is pinched and being shorted to ground ! You need to trace that wire until you find it . Also if anyone has done any repairs recently you may want to start looking in that area .

Posted on Jun 17, 2009

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