Question about Acura CL
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.
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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Posted on Jan 02, 2017
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Posted on Dec 22, 2008
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
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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