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2012 Chevrolet Silverado 1500 2 wheel drive with v6. warning light says engine hot a/c turned off also temperature gauge does not work. have replaced thermostat

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Hook up a manual temp gage and see if it is really getting hot first.

Posted on Apr 18, 2017

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I have a 2008 Chevrolet Silverado and the warning lights keep coming on telling me AC not working/engine hot ,, ??


ENGINE HOT TURN A/C OFF
Cooling System Description and Operation

ENGINE COOLANT HOT
The instrument panel cluster (IPC) displays ENGINE COOLANT HOT message when the IPC receives a class 2 message from the powertrain control module (PCM) requesting illumination of this driver warning.
ENGINE OVERHEATED
The IPC displays ENGINE OVERHEATED message when the IPC receives a class 2 message from the PCM requesting illumination of this driver warning.

DTC P1258: Engine Coolant Over temperature - Protection Mode Active
Have it check

Mar 03, 2017 | Chevrolet Cars & Trucks

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How do I fix a p1685 code on a 2012 silverodo


Code means
Transmission control module power up temperature sensor circuit low voltage

May 24, 2016 | 2012 Chevrolet Silverado 1500 Work Truck...

2 Answers

Where is the engine temp gauge on 2013 chevy spark?


There is a symbol on the right side instrument cluster, but probnably just an overheat warning symbol......We are all waiting for the Haynes manual to be published, Haynes told me will be out in March sometime.
starman2236

Feb 22, 2013 | 2012 Chevrolet Spark

2 Answers

Heat gauge goes way up,then by reeving motor it will go down.blows cold air


Check out related help links with solutions to troubleshoot the problem:---
Click the link below:---
2004 Toyota Tundra: Oil Gauge and Temp Gauge Not Working?


http://howtobyme.blogspot.in/2012/05/2004-toyota-tundra-oil-gauge-and-temp.html

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Toyota 4Runner: Temperature Gauge Sensor http://technoanswers.blogspot.in/2012/04/toyota-4runner-temperature-gauge-sensor.html

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Temperature gauge sits over half way mark? http://schematicsdiagram.blogspot.in/2012/04/temperature-gauge-sits-over-half-way.html
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Heater blows intermittently and temp gauge goes erratic?


http://technoanswers.blogspot.com/2012/01/heater-blows-intermittently-and-temp.html
------------- No heat on Oldsmobile Silhouette? http://technoanswers.blogspot.in/2012/02/no-heat-on-oldsmobile-silhouette.html
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Temperature gauge does not move and no heat when heater is ON? http://technoanswers.blogspot.com/2012/01/temperature-gauge-does-not-move-and-no.html
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Temperature gauge keeps fluctuating up and down close to red? http://technoanswers.blogspot.com/2012/01/temperature-gauge-keeps-fluctuating-up.html
----------- Temperature gauge on the dash quit working on Pontiac Grand Prix? http://technoanswers.blogspot.com/2012/01/temperature-gauge-on-dash-quit-working.html
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Dodge neon gauges not working? http://technoanswers.blogspot.in/2012/02/dodge-neon-gauges-not-working.html

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Heater blows cold? http://schematicsdiagram.blogspot.in/2012/02/heater-blows-cold.html

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Heat blows cold on drivers side and hot on passenger side? http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html

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1992 Lexus LS400: Engine overheats, Antifreeze out of reservoir and heater Blows Cold Air? http://whatisbyme.blogspot.in/2012/05/1992-lexus-ls400-engine-overheats.html

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These details will help.
Thanks.

Nov 22, 2012 | 1997 Ford Taurus

1 Answer

I have a 2001 Chevy Silverado 1500 Z71 truck. When I drive for more than 20 or 30 minutes with the heater on, it gets "stuck" and then blows only real hot air, even if I turn the air conditioner on high....


Do you have a hot water valve out by or on the engine usually you can tell by following the heater hoses the water valve will be in line or be coming off of the engine intake manifold, it is vacuum operated older valves can stick, try that first or if you have a vacuum gauge check to see if the vacuum bleeds off you can also manually apply vacuum and feel what the heater temperature does.

Oct 13, 2010 | 2001 Chevrolet Silverado 1500

3 Answers

Where to add coolant for radiator on a 95 vw jetta?


Add Coolant to spherical reservoir at right rear of engine compartment as viewed from front. If it is low the coolant gauge flashing light will warn you of a low condition.

Jan 01, 2010 | 1995 Volkswagen Jetta

1 Answer

Engine does not appear to be hot. Gauge says extreme heat


try replacing your temperature sending switch. That it what tells your gauge or idiot light where to read or light to come on. It may have a short in it. Or a short between the two.

Oct 06, 2009 | 2001 Chevrolet Venture

2 Answers

On my 1999 chevy silverado the only gauges that work are the oil pressure gauge and the temperature gauge. nothing else is working cot even the speedometer or the RPM gauge.


The stepping motors in the gauges go bad. Do a search on ebay for CHEVY SILVERADO INSTRUMENT CLUSTER for cheaper repair options, dealer costs $300.00

Jun 04, 2009 | 1999 Chevrolet Silverado 1500

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