Question about 2001 Ford F-250 Super Duty

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Code p0603 engine overheated, into fail safe mode and continues after cooling engine

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  • 17 Answers

There is a condenser for the air conditioner in front of the radiator. Try cleaning the fins with a garden hose. Spray from the inside out.

Posted on Jun 09, 2014

  • Russell Sundberg
    Russell Sundberg Jun 09, 2014

    There is a condenser for the air conditioner in front of the radiator. Try cleaning the fins with a garden hose. Spray from the inside out.

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6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Fail Safe Engine Mode

Sueaggie93....
Our 2006 Expedition (56K miles) is going in to safe mode and driving us nuts. How much did it cost to fix?

Posted on Dec 08, 2009

misfitmaster
  • 35 Answers

SOURCE: Solution for the message "engine fail safe mode" in explorer 2005

I have hearing a lot of this lately with Fords. Most of the time this dash board light comes on due to problems with the Throttle Body (TB)not just your coolant,etc.. If it is sticking,dirty,causing misfires,etc. then this can cause an engine fail safe mode.You might first try putting in some injector cleaner and a higher grade of gas.Many people I know who have had this problem have had to have their TB cleaned and/or replaced. This is something Ford dealerships now about,but hasn't been made a recall or anything.There are service bulletins though.Mainly keeping cleaner in your gas and performing ritual tune-ups/oil changes may be the only thing you can do.Hope this helps

Posted on Apr 17, 2010

  • 1 Answer

SOURCE: Enigine fail safe mode

I encountered the same problem, my engine fail safe mode light came on and shut the car down. I took my car to my mechanic and he found the solution to the problem. The car needed a throttle body cleaning and the fuel filter needed to be replaced. After having my truck serviced my mileage increased from 14.6 mpg to 15.4 mpg
ENGINE FAILED SAFE MODE WARNING LIGHT, GONE Total cost $86.45

Posted on Dec 23, 2010

  • 11 Answers

SOURCE: f150 engine fail safe

get a scanner or a code reader connect it to your truckson board diagnostic connector and it will show trouble codesstored in your engine computer it will tell what sensor may be faulty

Posted on Mar 29, 2012

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1 Answer

How do i switch off safety mode?


which make of car
over heat may have damaged some wiring or sensors under the hood
the engine computer module ECU can fail stopping the engine from starting ...replace with a working one
another safe mode i know of is with a transmission module
were you only have third and reverse to drive to a workshop

May 03, 2016 | Cars & Trucks

1 Answer

Cooling problem,code#P1299,on a 06 Ford Escape 2.3l


P1299 - Cylinder Head Over Temperature Protection Active Description: Indicates an engine overheat condition was detected by the cylinder head temperature (CHT) sensor. An FMEM strategy called fail-safe cooling was activated to cool the engine. Possible Causes:
  • Engine cooling system concerns
  • Low engine coolant level
  • Base engine concerns
Diagnostic Aids: Refer to Section 1, Powertrain Control Software , for more information on the fail-safe cooling strategy and cylinder head temperature sensor. Application Key On Engine Off Key On Engine Running Continuous Memory All GO to Pinpoint Test DL .


Feb 19, 2015 | 2006 Ford Escape

1 Answer

I have a 2004 ford explorer xlt. the indicator says engine fail safe mode. what could be the problem?


Failure Mode Effects Management (FMEM) is an alternate system strategy in the PCM designed to maintain engine operation if one or more sensor inputs fail.
When a sensor input is perceived to be out-of-limits by the PCM, an alternative strategy is initiated. The PCM substitutes a fixed value and continues to monitor the incorrect sensor input. If the suspect sensor operates within limits, the PCM returns to the normal engine operational strategy.
All FMEM sensors display a sequence error message on the scan tool. The message may or may not be followed by Key On Engine Off or Continuous Memory DTCs when attempting Key On Engine Running Self-Test Mode.
With the fail safe mode was the "Service" wrench light lit or check engine light ?
With

Feb 07, 2015 | 2004 Ford Explorer XLT

1 Answer

Citreon xara picasso in limp mode code p0603


Internal control module keep alive memory faulty

which will give symptoms of
external problem like
power owner supply lose

Jun 14, 2014 | 2001 Citroen Xsara

1 Answer

Code p0603


this fault can be caused by a low battery, as the ecu/pcm require power even when ignition is off ,so a battery that doesnt hold a good charge will make these components think the vehicle is being stolen and wont let it start , get a new battery and once started check the alternator charge rate in case that is the reason for battery poor condition

May 12, 2014 | Ford F-250 Cars & Trucks

1 Answer

Failed ecm p0603


Instead of guessing as to what the problem is or expecting someone on here having a magical fix , take it to a qualified repair shop. Before assuming the worst an wanting to condem the PCM - powertrain control module . Will a scan tool communicate with it ? If your pulling codes it is .
DTC P0603 Control Module Long Term Memory Reset
The PCM has a memory area where it stores certain data it needs to save when the key is turned OFF. This area is called Keep Alive Memory. This diagnostic test monitors the PCM's keep alive memory for a loss or unintended change of data. If such a condition occurs, DTC P0603 will set.
Diagnostic Aids
If the battery has been disconnected for any reason DTC P0603 will set. The PCM keeps a running check on the memory; if memory changes it resets. An intermittent loss of power or ground to the PCM will cause a reset.

Have you disconnected the battery ?
Diagnostic Aids
If the battery has been disconnected for any reason DTC P0603 will set. The PCM keeps a running check on the memory; if memory changes it resets. An intermittent loss of power or ground to the PCM will cause a reset.

Jun 21, 2017 | 1997 Oldsmobile Aurora

2 Answers

What causes 2004 Lincoln LS with V8 to go into


Over heating causes it to shut down 2 cyl n run on 6 cyl to help cool it down but once that happens the best is to shut it off check the cooling system check for antifreeze make sure its full then take the ground off the battery that's in the trunk beside the spare tire n leave the postive on but take off negative n leave it off for 5 mins then hook it back on it will turn the safe mode off back to normal. That's what I did to my 04 lincoln LS v8 3.9l... hope this helps ya

Mar 06, 2010 | 2004 Lincoln LS

1 Answer

The ecm has detected failed oil level switch. where is it?


well this is the meaning of the codes ,looks like there was a chain reaction ,,,,i have the first code now on my car , i did plugs and wires but no help , good luck,P0300 - Engine Misfire Detected P0463 - Fuel Level Sensor Circuit High Voltage P0603 - Control Module Long Term Memory Reset P0741 - TCC System Stuck Off P1617 - Engine Oil Level Switch Circuit

Jun 14, 2009 | 1999 Cadillac Eldorado

1 Answer

2003 Ford Taurus will not rev above 3000 RPM


you have a rev limiter in neutral. Is that when this happens?

Engine RPM/Vehicle Speed Limiter The powertrain control module (PCM) will disable some or all of the fuel injectors whenever an engine rpm or vehicle overspeed condition is detected. The purpose of the engine rpm or vehicle speed limiter is to prevent damage to the powertrain. The vehicle will exhibit a rough running engine condition, and the PCM will store a Continuous Memory DTC P1270. Once the driver reduces the excessive speed, the engine will return to the normal operating mode. No repair is required. However, the technician should clear the PCM and inform the customer of the reason for the DTC.
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Fail-Safe Cooling Strategy The fail-safe cooling strategy is activated by the PCM only in the event that an overheating condition has been identified. This strategy provides engine temperature control when the cylinder head temperature exceeds certain limits. The cylinder head temperature is measured by the Cylinder Head Temperature (CHT) sensor. For additional information about the CHT sensor, refer to PCM Inputs for a description of the CHT sensor. Note: Not all vehicles equip with a CHT sensor will have the fail-safe cooling strategy.
A cooling system failure such as low coolant or coolant loss could cause an overheating condition. As a result, damage to major engine components could occur. Along with a CHT sensor, the fail-safe cooling strategy is used to prevent damage by allowing air cooling of the engine. This strategy allows the vehicle to be driven safely for a short time with some loss of performance when a overheat condition exist.
Engine temperature is controlled by varying and alternating the number of disabled fuel injectors. This allows all cylinders to cool. When the fuel injectors are disabled, their respective cylinders work as air pumps, and this air is used to cool the cylinders. The more fuel injectors that are disabled, the cooler the engine runs, but the engine has less power.
Note: A wide open throttle (WOT) delay is incorporated if the CHT temperature is exceeded during WOT operation. At WOT, the injectors will function for a limited amount of time allowing the customer to complete a passing maneuver.
Before injectors are disabled, the fail-safe cooling strategy alerts the customer to a cooling system problem by moving the instrument cluster temperature gauge to the hot zone and a PCM DTC P1285 is set. Depending on the vehicle, other indicators, such as an audible chime or warning lamp, can be used to alert the customer of fail-safe cooling. If overheating continues, the strategy begins to disable the fuel injectors, a DTC P1299 is stored in the PCM memory, and a malfunction indicator light (MIL) (either CHECK ENGINE or SERVICE ENGINE SOON), comes on. If the overheating condition continues and a critical temperature is reached, all fuel injectors are turned off and the engine is disabled.

Mar 15, 2009 | 2003 Ford Taurus

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