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Problem code p1258 - 2003 GMC Sierra 2500HD

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I have 2000 cadillac deville and its overheating


P0741 - Torque converter clutch slip speed is exceeding limit; P1258 - High engine metal temperature. Sounds like you have transmission problems - torque converter problems can cause engine overloading, which in turn can cause the overheating. I would start with a complete transmission check before the engine is seriously damage the engine.

Sep 27, 2014 | 2000 Cadillac DeVille

1 Answer

P1258 code


could be a thermostat, head gasket , not fill properly,
P1258 is: engine overtemperature protection, or low coolant fuel disable

Sep 19, 2013 | 1996 Cadillac Eldorado

1 Answer

Cooling fan wont come on


Google the Codes
OBD P1258
OBD P1860
Include your vehicle
Dealer Codes?
What does that mean?
I wouldn't be at a dealer & codes
pertain to the vehicles strategy

Jul 22, 2013 | Cars & Trucks

1 Answer

2004 chevy express van codes p0894


P0894 Transmission Slipping
P1258 Engine got Hot
P1516 Throttle Actuator Control (TAC)

Chevrolet Tahoe vehicles may experience a performance issue where they will not go over 15MPH. The vehicle may appear to be in "limp-in" mode, giving just enough power to get you to a shop. over-hood-250x300.gifThe codes indicate a problem with the throttle position sensor circuits and throttle actuator performance. Do NOT start replacing parts. Shops report a pattern failure in the electrical harness to these sensors. Chevrolet has issued a revised replacement harness to correct the problem. The original connector was prone to vibration and broken wires that disrupted the signal to the PCM and put the vehicle into reduced power mode.

Apr 12, 2013 | 2004 Chevrolet Express

1 Answer

Check engine light, low engine power


You get a reduced power message ? Your vehicle has electronic throttle control or also known as drive by wire . Your gas pedal is electrically hooked to the PCM - engine computer . Has two position sensors inside as does the throttle body on the engine . Over time these position sensors wear an cause improper signals to the computer an the computer will put the vehicle into a limp mode . Most cases it will drive but only at about 20 mph . There are videos on youtube showing how this works , how to diagnose etc....
This P0449 is something different , has to do with the Evap. emissions .
DTC P0449 Evaporative Emission (EVAP) vent Solenoid Control Circuit . Planty of videos on youtube for GM trucks on this problem .
DTC P1516 Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance
The predicted throttle position (TP) is compared to the actual throttle position. The two values should be within a calibrated range of each other. Both the powertrain control module (PCM) and the throttle actuator control (TAC) module redundantly monitor the predicted and actual throttle position. DTC P1516 sets if the PCM detects an out of range condition between the predicted and the actual throttle position.
Look's like you have three different problems , Thought p1516 an p1258 were going to point to same electronic throttle problem .

P1258
Engine Coolant Overtemperature - Protection Mode Active
PCM
DTC P1258

Circuit Description
The powertrain control module (PCM) uses the ECT sensor to monitor the engine for an over temperature condition. This condition occurs when the coolant temperature is above 132°C (270°F). When an over temperature condition is present, DTC P1258 will set. The PCM will disable two groups of four cylinders by turning OFF the fuel injectors. By switching between the 2 groups of cylinders, the PCM is able to reduce the temperature of the coolant.

Check the engine cooling fans for proper operation.
Are the engine cooling fans operative? Have you ever had the thermostat changed ? Is the coolant full ?

Check out youtube videos ! Just type your codes into the search bar .

May 02, 2017 | 2006 Chevrolet Silverado 2500HD 2WD

1 Answer

I have a 1996 cadillac deville with codes PO741 and P1258 current. Tonight it shut down as I was driving, what could be the problem?


P0741....Torque Converter Clutch Circuit Performance or Stuck Off
P1258 Engine Coolant Overtemperature - Protection Mode Active
the first code is a generic code the latter code is a GM code and if this is correct the engine shut down because it was overheating for whatever reason or the sensor is faulty

May 02, 2011 | Cadillac DeVille Cars & Trucks

3 Answers

The other day my check engine light came on after my engine started overheating. I did a diagnostic reading on it and the code came up P1258. What does that entail?


code po 1258 is an overheating code, need to check why u r overheating, start simple, do u have fluid, has it been changed , might need thermostat, how old is truck,. is there a leak anywhere.do pressure check on radiator and see if it leaks, check radiator temperature vs engine temperature. get a thermo scanner they work good. point and it reads how hot . if motor is hotter replace thermostat. check make sure oil level is good. get back to me let me know what u find..

Mar 28, 2011 | Chevrolet Silverado 1500 Cars & Trucks

1 Answer

P1258 CODE


Trouble Code: P1258 (4.6L V8 VIN 9 Auto)
Engine Metal Over-Temperature Protection
Number of Trips to Set Code: 1
OBD II Monitor Type: CCM Details
Indicators: MIL Details
Trouble Code Conditions:
DTC P0117, P0118 and P0125 not set, Engine started; and the PCM detected the ECT sensor indicated more than 270ºF for 10 seconds. 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 coolant and lower the temperature.

Possible Causes:
  • Engine cooling system problem (test the cooling fan operation)
  • Engine coolant level is low or the mixture is not correct
  • ECT sensor is out-of-calibration or "skewed"

Aug 13, 2010 | 1999 Cadillac DeVille

2 Answers

Code p1258 engine light an oil light came on, 2005 equinox


2003 chev silverado truck 5.3 code p1258 the truck over heated and shut down can someone help me please

Feb 06, 2010 | 2005 Chevrolet Equinox

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