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2006 Chevrolet Equinox with engine code P1258, how do I fix it? Vehicle: 2006 Chevrolet Equinox chevrolet; equinox; p1258; 1 Answer. 0 like . 0 dislike. answered Nov 16, 2017 by Carguy1 (13.5k points) Hi there. This code is for the over temp protection mode being active. This can be the result of a low engine coolant or a stuck thermostat. ...How To Replace Engine Coolant Tempature Sensor GM 5 3L Hummer H3 Alpha P1258Instagram: www.instagram.com/acer4lo/Hummer Help Forum I that I use:http://www.hu...what is a troubleshooting code p1258 and how do i fix it on a 2004 cadillac CTV V6. Hello, I'm Chris Thanks for visiting Just Answer. This code means your coolant has been way over temp. To set this code the coolant has to reach 268 degrees F for more than 10 seconds. If you have not had any signs of overheating like lose of coolant or loss of ...A P1258 code is caused by an ECM (Engine Control Module) receiving a signal from the PCM (Powertrain Control Module) that the engine is overheating. When this happens, the ECM will shut down the primary ignition system to prevent further damage. The protection mode is enabled and it sets a P1258 code when the engine coolant gets too hot.P1116 ECT Signal Unstable Or Intermittent - Read Our Article on Intermittent Diagnosis For Help With These GM Trouble Codes. P1117 Engine Coolant Temp Signal Out-Of-Range Low. P1118 Engine Coolant Temp Signal Out-Of Range High. P1119 ECT Signal Out Of Rage With TFT Sensor. P1120 Throttle Position (TP) Sensor 1 Circuit.Aug 13, 2022 · By disabling half of the cylinders, the ECM is able to reduce the temperature of the coolant. The Diagnostic Trouble Code (DTC) will be set when the coolant temperature is warmer than 129°C (264°F) for greater than 10 seconds. P1258 GMC Code - Engine Coolant Overtemperature Protection Mode Active.CIRCUIT DESCRIPTION Heated oxygen sensors (HO2S) are used for fuel control and post catalyst monitoring. Each HO2S compares the oxygen content of the surrounding air with the oxygen content in the exhaust stream. The HO2S must reach operating temperature to provide an accurate voltage signal.Feb 24, 2020 · P1258 CADILLAC Description. In order to reduce the engine temperature the Powertrain Control Module (PCM) has the ability to disable a number of fuel injectors during an engine over temperature condition. The PCM considers the engine over temperature whenever the Engine Coolant Temperature (ECT) reaches a predetermined temperature.Learn what the P1258 Chevrolet code means, what causes it, and how to fix it. The code indicates that the engine control module has disabled half of the cylinders to reduce the coolant temperature above 129°C.P1258. Definition: Engine Coolant Over temperature - Protection Mode Active. Description: The engine is operating. Cause: All V8. The coolant temperature is warmer than 129°C (264°F) for greater than 10 seconds. 6.0L-Hybrid.P1285 Cylinder Head Temperature Too High - P1299 Cylinder Head Over Temperature Protection Active - Stuck Water PumpAutomotive Service ExcellenceThank you fo...Feb 12, 2020 · P1258 is a powertrain code that indicates the PCM disabled some fuel injectors to reduce engine temperature. Learn the possible causes, symptoms, and description of this code and how to fix it.To diagnose the P1258 Ford code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.coolant explosion on the HighwayCoolant hoseThanks for WatchingSUBSCRIBE HERE: https://www.youtube.com/channel/UC2_EI9QXkTosbconebEJGow?view_as=subscriberThi...plano-doug Discussion starter. 2999 posts · Joined 2009. #1 · Oct 13, 2015. My wife just called to tell me she had gotten an "Engine hot, AC off" message when she was leaving the subdivision in our 2007 SS. She said she also got another message, approximately "engine powered down". No codes yet, but I'll get some when I get home tonight.The PCM uses the ECT sensor to detect if the engine is running too hot (when the ECT sensor is over 268ºF). If the engine is overheated, DTC P1258 will set. The PCM will disable 2 groups of four cylinders by turning off the fuel injectors. By switching between the two groups of cylinders, the PCM is able to reduce the temperature of the ...

1. The list of automotive Makes at the right edge of the screen. The currently selected ODB-ii codes is for the Pontiac makes. 2. Look up the other OBD II Trouble Codes, please use the search box. Enter the 5 character trouble codes …P1258 2014 Chevrolet Silverado Code - Engine Coolant Overtemperature Protection Mode Active. How to Fix. Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.The GM specific OBDII trouble code of P1258 involves your Engine Coolant Temperature sensor. The specific wording behind this trouble code is Engine Coolant Overtemperature - Protection Mode Active. Put simply, your GM engine is overheating and in order for the ECU to protect the engine, DTC P1258 triggers limp mode.Limp mode is designed to limit ignition and fuel, while literally allowing ...Westlotorn. The Coolant Temp Sensor is located right next to the dip stick and down below the oil fill cap. easy to spot but you are looking for a Silver round tube that is about 1.5" x 3" with a wire going into the middle of the top. This silver tube protects your temp sensor from the heat of the exhaust.

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Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. Aug 13, 2022 · To diagnose the P1258 Cadillac code, it typica. Possible cause: Are Jay replacing the throttle body on a 2007-2014 chevrolet tahoe, suburban, tah.