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Why is my temp gauge not reading temperature w brand new coolant temperature sensor

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  • Cars & Trucks Master
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What make , model and year vehicle ? Could be the gauge is bad !

Posted on Aug 09, 2017

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Posted on Jan 02, 2017

emissionwiz
  • 75797 Answers

SOURCE: coolant temperature sensor location for 1999 Dodge Durango

The sensor is right next to the heater hose outlet on the front passenger side of intake manifold. It is very small with an oval shaped connector going to it. I have the same engine.

Posted on Oct 21, 2008

  • 1 Answer

SOURCE: ENGINE COOLANT FAN NOT CUTTING IN

On my 2001 Focus Zetec 2.0L, the radiator fan only worked with the air conditioning turned on (as in no low speed - engine would overheat while idling or in traffic, but was fine as long as the A/C was on). The fix was to replace the radiator fan resistor assembly located in the fan shroud between the fans.

Posted on Nov 12, 2008

  • 218 Answers

SOURCE: Where is the coolant temperature sensor located on 2000 Altima?

THE SENSOR FOR THE GAUGE IS ON THE HOUSING THE UPPER RADIATOR HOSE ATTACHES TO.

Posted on May 07, 2009

  • 534 Answers

SOURCE: 2001 dodge stratus engine temperature gauge spikes occasionally

Look for a loose connection to the temperature sender unit on the motor.
If all connections OK, you may need a new temp sender unit.

Posted on Jul 28, 2009

  • 55 Answers

SOURCE: Chevy Silverado 06 -Temperature gauge vary

The sensor is next to where the upper radiator hose meets the engine

Posted on Nov 23, 2009

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Does the 98 Ford F-150 5.4 triton have two coolant sending units? I found the one on the intake and replaced it and still no gauge.


Has CHT - cylinder head temp. sensor . This sensor is a input to the PCM - engine computer . The PCM sends engine temp info on serial data network to the instrument cluster . I/C has a microprocessor inside . Have it check for DTC'S - diagnostic trouble codes . Not OBD2 codes , B - body codes . The gauge could be the problem , which means replacing the instrument cluster .
Engine coolant temperature information is received by the instrument cluster from the PCM over the SCP network. Temperatures over 121°C (275°F) will display hot (H). If the engine coolant temperature data is missing or invalid for five seconds, the instrument cluster will move the engine coolant temperature gauge below the cold (C) position.
The best way to diagnose this is with a scan tool , factory or a professional type . Know how the system works and not replacing parts is the proper way to diagnose .
U1073 D073 SCP (J1850) Invalid or Missing Data for Engine Coolant PCM CARRY OUT the PCM self-test.
  • A single gauge does not return to zero with the ignition switch off
  • Instrument cluster.
  • INSTALL a new instrument cluster; REFER to Instrument Cluster . TEST the system for normal operation.

  • Incorrect temperature gauge indication
  • Circuitry.
  • Instrument cluster.
  • PCM.
  • Engine coolant temperature sensor.
  • GO to Pinpoint Test F .

I should also point out that if the temp sensor were bad the vehicle may not run right .
Using the factory scan tool
Trigger instrument cluster active command ENGCOOLNT. Monitor the engine coolant temperature gauge while adjusting the ENGCOOLNT active command to read 50% and 100%.
  • Does the temperature gauge start at cold, move to half at 50%, and full hot at 100%?
Yes REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual.

No INSTALL a new instrument cluster; REFER to Instrument Cluster . REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
Your best bet , take it to a qualified repair shop !

May 29, 2017 | Ford Cars & Trucks

1 Answer

Code active, unplug coolant sensor dash gauge stops reading


What make vehicle ? some vehicles have two coolant sensors . One for temp. gauge an another one for the ECM / PCM input. Do you have a check engine light lit ?

A DTC will be set if an abnormal reading occurs, P0116 for sensor performance, P0117 low input or

P0118 for a high input. The coolant temperature sensor temperature reading should closely match the

air charge/manifold temperature reading on a scan tool if the engine has not been run for over an hour.
The sensor circuit can be checked for proper voltage using a voltmeter.

Jun 03, 2015 | Cars & Trucks

2 Answers

What is wrong the temp does not get hot going down rasd


I would buy a new thermostat and flush the radiator coolant. Dexcool (The orange coolant) is known to clog up the internals including the temperature sensor in cars of your age.

While you are at it, I would strongly consider changing radiator hoses and clamps unless that was done recently.

If you are referring to the dashboard temperature gauge not moving...It means that your temperature sending unit may be faulty (or it's not plugged in). Dexcool is known to clog up the internals including the temperature sensor in cars of your age. Inspect the connector to the temp gauge for damage and replace the temp gauge.
A replacement temp sensor is about $15 at any auto parts store.

Good luck

Feb 24, 2015 | 2004 Buick Rendezvous

1 Answer

Why does the temperature gauge on my 1995 Chevy K2500, 5.7L read 150 degrees ?


If you replaced the SENSOR and not the gauge SENDER, there's your answer.

The SENSOR sends the computer (ECM, PCM, ECU, etc.) the engine temp so it can make the adjustments to the fuel, timing etc.

The gauge SENDER makes the gauge read what temperature the engine coolant is.

Hope the helps.

Feb 21, 2015 | 1995 Chevrolet K2500

1 Answer

I have a 2007 Chevrolet Equinox and had my cluster repaired for the temp gauge. Now it works but will not drop the entire way after it cools down. I was told that this is a temp problem with GM vehicles...


From what I just read about your vehicle,it has a history problem with the gauge,may be the coolant temperature sender or the gauge,it says the whole cluster will have to be changed to be fixed if the gauge is bad,found some forums and all had gauge problems.Right above the coolant temperature sensor is the coolant temperature sender,this is what sends the temperature to your gauge,the sensor sends a signal to the computer,they may have replaced the wrong one,here's a link to the sensor,the hole above it is where the sender goes,it's a one prong part,the sensor is a 2 prong part.A lot of people don't know that there are 2 types of coolant temperature gauge sending unit and sensor.

Nov 06, 2013 | 2007 Chevrolet Equinox LS New Cars

2 Answers

96 park ave temp only gets 160 replaced stats twice


If the temp gauge is reading 160 when the engine is warmed up, the problem could be air in the cooling system, a faulty sending unit, or gauge.

Dec 09, 2012 | 1996 Buick Park Avenue

4 Answers

The temperature gauge on my 2002 grand prix dose


the temperature sending unit on a 97 grand prix 3800 gt(which is also the coolant temperature sensor) is not accurate. the sending unit part of this sensor only sends info to the guage on the dash. the coolant sensor part sends info to the computer of the car. it is located under thermostat and somewhat difficult to get at. i had put a brand new one in and my temperature on my dash is all over the place---even with good thermostat and properly bled system. when i hook up a scanner to my computer, the coolant sensor is sending the computer(ecu??) what seems to be the right temp. anywhere from 194 degrees to 217 when hot. the guage however on dash go from 160 to 260 in less than 2 minutes.

Nov 16, 2009 | 2002 Pontiac Grand Prix

2 Answers

Volkswagen trouble codes i cant find in the book any ideas? the code says p1296


t's a cooling system malfunction code. Either the car took too long to reach operating temp (like a stuck thermostat) or is getting bad readings from the temp sensor. It's the same unit as for the gauge but a different part sends a signal to the ECM, so the gauge ma read fine.It means more than likely your Coolant Temperature Sensor (CTS) is faulty and reading an incorrect temp.
As noted by a few above, replace with the new "green top" version of the sensor, clear the code, and you should be set.
You shouldn't need anything else unless the thermostat is sticking open...

Apr 25, 2009 | 2001 Volkswagen Jetta TDI

1 Answer

2001 Jeep Grand Cherokee Engine temg gauge not working


If you changed the coolant temperature sensor and it had a 5 volt ref signal to it then you replaced the wrong part. You need to replace the coolant temperature sending unit.  The coolant temp "sensor" is an input to the ECM for your fuel injection system. The coolant temp "sending unit" is for coolant temp reading at the gauge, It is an NTC switch (negative temperature coefficient) which means as temp increases/resistance decreases. 

Dec 19, 2008 | 2001 Jeep Grand Cherokee

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