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There is a F between the hot and cold on the dash reading on tempeture gauge

There tempeture gauge on dash is showing cold on one side and hot on the other but there is a F between them on the gage

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6ya6ya
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Posted on Jan 02, 2017

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  • 203 Answers

SOURCE: temperature gauge reads high

i think there is 2 sensors or your thermostat might be stuck. you can remove the stat and see what happens if it runs cool then replace it

Posted on Nov 21, 2008

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duster292
  • 19 Answers

SOURCE: A/C Heater problems

the main issue with this is either the thermostat or the climate control switch I do not know if your climate control switch is electronic or manual either way I would start out with the cheapest and go with the thermostat first good luck!

Posted on Nov 22, 2008

  • 1 Answer

SOURCE: tempeture gauge

Just fixed this problem myself.

In addition to the above description, my service engine light came on about a week after the gauge stopped working.

Took it to Auto Zone and had them do an error code scan, this is a free service of AutoZone.

Code P0126 - Coolant Temp is always low.

3 possible causes

1) Check Engione Coolant
2) Thermostat defective
3) ECT sensor defective.


I added approx two pints of coolant. The Check Engine Soon light went out and the temp gauge started working again.


Posted on Dec 28, 2008

  • 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

  • 41 Answers

SOURCE: warm heat not hot

Check antifreeze level, if it is low coolant may not flow through heater core. If coolant level is ok feel the heater hose with engine running at normal operating temp and heat on high, if one hose is much cooler than the other you have a bad heat control valve or a pluged heater core.

Posted on Oct 16, 2009

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2 Answers

On a 93 jeep Cherokee 4.0 if the catalyst converter is clog can it cause overheating?


First the dash gauge is not that accurate. Yes if you have excessive back pressure from the catalytic converter then the temperature can rise on the engine.

Mar 06, 2017 | Jeep Cars & Trucks

2 Answers

How does a car run cold


... A faulty coolant sensor that always reads cold may cause the fuel control system to run rich, it may be sending the wrong info to the computer and the guage. make sure there is no air in the coolant system, and it is full. see if coolant resorvoir is full when hot. if all is ok, change coolant sensor. good-day!

Apr 13, 2014 | 2001 Chevrolet Camaro

1 Answer

Tempeture gauge goes to quater way and stops


Would venture a guess at a bad thermostat or a bad gauge. Easiest test is to check the heat output from the heater on a cold day. When placed on the highest setting, is it hot or just lukewarm? If it doesn't get hot, it's probably a stuck thermostat or one of too low a setting for the climate you are in.

Incidentaly, doe the gauge go higher whan the weather is warmer? If so, there is likely nothing wrong with the gauge but again points to the thermostat.

Good luck.

Nov 23, 2013 | 2012 Land Rover Range Rover Sport

1 Answer

Temperature Gauge read HOT instantly


If the gauge does not go back to cold when the engine is cold, it could be the gauge on the dash. I am assuming the gas gauge drops with the key off.
You could unplug the temp sensor on the engine to see if it makes any difference.

Jan 31, 2013 | 2001 Ford Escort ZX2

1 Answer

Car over heating


check to make sure you have fluid in your radiator. second if you do make sure it is flowing through your engine. do this by starting your car and removing the radiator cap. caution is advised do not do this if the car is hot. only attempt if car is cold. you should be able to see if the fluid is moving or not. let it run for a bit check tempeture gauge if it shows hot or normal and nothing is flowing, probably the thermostat.

Oct 20, 2012 | BMW 1 Series Cars & Trucks

1 Answer

Tempeture gauge fails replaced tempeture gauge sending unit whats next gauge stays at hot maxed out all the time when ignition is on


Sounds like you have a short to power or ground somewhere. Follow the wires from the sensor, and find it.

Aug 05, 2009 | 1994 Honda Accord

1 Answer

Check engine light and air conditioning


I Think I Can,
You Might Be Blending Hot Air With A/C Cold Air And Being 100Deg Outside, Your Getting
Really Warm/Hot Air Inside,
Your System Is Charged w/Freon, The A/C Compressor Is On/Engaged,
There Are 2-Aluminum Tubes Comming From The Compressor, [In & Out Pressure]
1 Tube Will Goto The Front Condensor, Infront Of The Raidator,
The OTHER Tube Comming Out Of The Condensor Will Goto A Dryer,
[Aluminum Looking Cylinder] Bigger Aluminum Tube[s]
The DRYER Will Then Feed Freon To Your Evap-Coil Inside Your Car [Cool-Air],

OK, The Dryer Tube's, 1 Of Them Should Be Cool/Cold, Locate That Tube, A Thermometer
wrapped w/Alum-Foil Around This Tube,
A/C ON, [A/C Compressor Engaged]
If You See The Temp Is Around 50-55 Degree's Or Lower, You Have Cold Air,
If Not, Above That, Low Freon, Or A restriction In The System. [Comes Later]
You Have Cold Air, You Have Warm/Hot Air Inside Car/Vents?
You Are Blending Hot Air w/Cold A/C Air, Problem Is With Heater-A/C Blend Box
Under Dash. There Are 2 Seperate Coils Under The Dash,
1 For Winter/Heat, Other [Evaporator Coil] For A/C, There Is a Diverter/Flapper door
That, For A/C, Closes Off The Heater Coil, Or It Should, To Prevent Engine Hot Water/Heat
From Blending w/ Cold A/C Air.
Most Are Controlled By A Diaphram, Vaccum Controlled From The Heater-A/C Controller
On The Dash.
If You Can Select From Defrost Vent To Dash and Floor Vents, Most Likely you Have
a Bad Diaphram That Controls The Heat-A/C Flapper Valve.
Most Time's You Can Open/Remove The Glove Box And See It,
A Temp Fix, For Cold Air, Would Be Remove The Vaccum Line From That Diaphram,
And Plug It, Pull The Metal Rod Back On The Diaphram with a Needle Nose Pliers,
If you Get Cold Air, Take a Ty-Wrap, Around The Shaft, Secure It, To Keep The
Vent In The Cold Air Position.
Then You Will Have To Get A New Diaphram Installed, Most Time's, Can Be Done
Through The Glove Box Opening.

Now About The Restriction In A System,
You Will Need A Set Of A/C Gauges, Car-Off, A/C Off, Connect Gauges.
IMPORTANT: The Gauges Before Connecting Should Show Pressure In Them [Freon]
Either The Gauges Have Freon In Them Or They Are In A Vaccum.
Otherwise They Have Air In Them, Air w/Freon=BAD Things.
OK, Gauges Show Pressure, Gauges Not Connected To Anything,
Open Up Both Knob's, Blue [Low-Side], Red [High-Side]
Gauges Needles will Move/Equal Out pressure,
BOTH Gauges Should Read Same Pressure, If Not, Quick Fix, Remove Gauge Glass
Covers, Need Little Screwdriver, If Gauges Off By ie: 4 psig,
Adjsut Low-Side [Blue] By 2psig and other, by 2psig, [Split The Difference]
So Now Both Gauges Read IDENTICAL Pressure.
Close Both Valves, Blue & Red
Connect Gauges To Car, Car=Off, A-C=Off
You Will See Pressure On Both Gauges,
Low Side Shuld Be Around 75-95psig, Depending on Outside Temp, If Around 60 or less
need freon.
OK, BOTH Gauges Should Show SAME Pressure reading,
If There Is MORE Than a 4psig Difference Between Them,
There Is A restriction In The System,
a Plugged "Orfice Tube" [Filter] Part Cost $3.00, Servicing The Filter, Alot More.
Restriction Causing Might Be , Moisture/Air in System [Improper Vaccum On System During Last Repairs], Compressor Breaking Down [Metal, Black Goo Bul-up]

Hope You Get Some Cold Air Soon.

Jun 25, 2009 | 1999 Mazda Millenia

1 Answer

Whole right side of the dash has stopped working


Replace cluster or send it to model electronics to check it out and repair,

May 29, 2009 | 1998 Oldsmobile Cutlass

2 Answers

Temp gauge stay on cold.


Switch ig. on, ground the sender unit wire for about 3 seconds see if the temp. gauge moves, if so change sender unit, if not then it is a faulty gauge reader.

Jan 15, 2009 | 2001 Chevrolet Impala

1 Answer

A/C Heater problems


the main issue with this is either the thermostat or the climate control switch I do not know if your climate control switch is electronic or manual either way I would start out with the cheapest and go with the thermostat first good luck!

Nov 22, 2008 | 2004 Chevrolet Impala

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