Question about 2005 Chrysler Crossfire

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Temp gauge will not go into "normal operating range. Change multi function sensor and coolant sensor. Gauge will go to just below 1/2 range and "freeze" there will not fluctuate at all

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Check the A/c connections , coolant level  .and thermostat.This can lead temperature to get out of rise and overheat. Temperature Gauge: The temperature gauge doesn't actually measure the temperature of your engine. Instead, it measures the temperature of your engine's coolant. Most gauges have ranges for cold, normal, and hot.

What Could Go Wrong? If your cars temperature gauge gets into the hot range, you need to move to a safe place and stop driving immediately. Ignoring this one can cause a lot of expensive damage in a fairly short amount of time.

It’s important to get an idea of how hot your car typically runs. While outside temperatures will affect the reading somewhat, temperatures that are consistently above your cars normal range could indicate problems with the cooling system.
Thanks.

Posted on Jun 04, 2010

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What kind of vehicle do you have
what engine
what aftermarket items installed

it sounds like a volt drop concern from the sensor to the gauge or the sensor to the computer but without knowing year, make and model its a guessing game!

Posted on Jun 04, 2010

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Engine temp gauge not reading and ac will not turn on due to engine hot warning, diognostics say its a sensor, need to know which one and can i do it myself?2003 saturn vue


What diognostics say its a sensor ?????? No diagnostic's ever tell's you it's a sensor . You as a technician would need to prove that by testing electrical circuits , viewing coolant temp sensor . Hooking scan tool and trying to command the gauge with by directional control . The temp gauge not showing any temp. ? No movement ? Engine Coolant Temperature Gage Inaccurate or InoperativeStep Action
Yes
No
Schematic Reference: Instrument Cluster Schematics
1
Did you perform the Instrument Cluster Diagnostic System Check?
Go to Step 2
Go to Diagnostic System Check - Instrument Cluster
2
Install a scan tool.
Turn the ignition ON, with the engine OFF.
With the scan tool, perform the Lamp and Gauge Check in the IPC Special Functions list.
Does the engine coolant temperature gage move up and down when commanded?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems
Go to Step 3
3
Replace the IPC. Refer to Instrument Cluster Replacement .
Did you complete the replacement?
Go to Step 4
--
4
Operate the system in order to verify the repair.
Did you correct the condition?
System OK
Go to Step 2
Would hate for you to replace the coolant temp sensor an find out that's not the problem ! Does the vehicle start an run good ,trans mission shift good ? If so it's not the coolant temp sensor .
Engine Coolant Temperature Gage
The ECM sends coolant temperature as determined by the coolant temperature sensor to the BCM via CAN serial data. The IPC displays the engine coolant temperature with the gage when the BCM sends a class 2 message to the IPC indicating coolant temperature percentage. The engine coolant temperature gage defaults to cold (0°) or below if:
• The ECM detects a malfunction in the engine coolant temperature sensor circuit.
• The IPC detects a loss of class 2 communications with the BCM.
• The BCM detects a loss of CAN communications with the ECM.

Aug 19, 2017 | AC Cars & Trucks

1 Answer

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

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1 Answer

1995 pontiac bonneville 3.8L temp gauge maxed, engine norm temp


Possible bad sending unit or shorted sending unit wiring.

Jun 07, 2013 | 1995 Pontiac Bonneville

2 Answers

What is the normal operating temperature for a 2003 Chevrolet Impala with 3.4L engine? Mine use to be around 185 to 190 degrees on the gauge inside the vehicle. The gauge now can range from 200 to 220...


The range should be in the temp range of your thermostat within in a few degrees, you probably have a 190 degree thermostat. As the outside (ambient) temp rises it's normal for the engine to run a little hotter 200 degrees is safe with coolant, water boils at 212. Your fans should cycle, so it sounds like your temp sensor is faulty. if you haven't flushed your radiator and changed your thermostat lately, now would be a good time to do so. Hope this helps,

Jul 16, 2011 | 2003 Chevrolet Impala

2 Answers

Hi: Recently I changed the radiator and the main hose of my Escape 2001. The car was sent to a Ford dealer to fix other problems and they checked the car and is working ok, however, the engine temperature,...


Normal engine operating tempurature can vary from 180 to 220 degrees depending on the age of your car and what kind of modifications it's had done to it.
Your 01 Escape is going to be normal in the 200 to 220 range.

Jan 08, 2011 | 2001 Ford Escape

2 Answers

Engine temp


try skewing the engine coolant temperature sensor with a multi-meter and a temp vs resistance or voltage chart. the ect could be out of range and not set a code. also check actual engine temp with an infrared thermometer. hope this helps

Jan 26, 2010 | 1997 GMC Jimmy

1 Answer

There are two sensors connected to the thermostat housing and i need to know which sensor is which and what they control. on cold days i cant get started


The larger of the two is the coolant temperature sensor. The other is the actual gauge temperature sensor. The coolant temp. sensor gives information to the cars computor & when the car reaches a predetermined temperature, the computor changes the ignition timing allowing the car to run at normal operation temperature settings. The temperature sensor gives info to the dash board gauge &/or temp. warning light. The reason you can't start on cold days is that your coolant temp. sensor is stuck in advanced mode & the timing is to far advanced . To remedy this problem change the coolant sensor. Good luck!

Jan 04, 2010 | 2000 Ford Contour

1 Answer

Temp Gauge acting erratically


you have to bleed the system coolant

Mar 21, 2009 | 1991 Honda Accord

1 Answer

Overheating


It may actually be a coolant temp sensor problem - they do have issues sometimes. I'd replace that before anything else - they're generally inexpensive (in the $20 or less range). If, when you ask for a new one, they ask you which one you want, you need the one for the dash gauge. Some cars have one for the gauge and one for the car's ECU. Your problem is with the one that drives the gauge, so get that one.

Jul 25, 2008 | 1992 Isuzu Rodeo

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