06 Expedition Engine fail safe mode

FORDS CAN GO INTO LIMP MODE IF THE BRAKE LIGHTS FAIL.

let someone scan for engine code.
replacing parts wont help.
ford have fuel pump problems to

ETC Failsafe?

Electronic Throttle Control

Clean the throttle plate with
CRC Throttle Body Cleaner

Still have problem--meter out
TPS Sensor on throttle body

It is replacable. You can do that yourself
Get from auto parts
About $80.00 -- 2 T-20 Torx Screws,
no adjustment

sounds like the throttle position sensor

thats strange....it sounds like total fail management mode.... try reseting it by disconnecting the battery for 5 mins , and retry ... one problem known is the starter pig-tail per TSB - 06-19-14 but thats for a NO-START.... check for basic fuel and ign. ...this will be hard due to diag requires a scanner.... all else fails you'll have to go to the dealer/shop for further diag.... hope this helps... or get back to me for what you tried and the outcome......GL

I have a 2006 expedition with 136,000 miles and have had the transmission checked and replaced the coil wires but it still misses at 40-50 MPH and at 70 mph does the same sound. If you accelerate and back off the go again it sounds like the transmission is clunking but the transmission guy said it wasn't the transmission. HELP!!!

My 06 expedititon just had the throttle body replaced at 52,000 miles, car would go into safe mode but you couldn't drive it.. always on the freeway - that is just really safe! had to park it... kill it and restart it, to be able to drive!

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.

Sounds to me like the mass airflow meter, cutting in and out. When faulty it can completely shut a car off, and also ingauge limp mode. I hope this helps. Let me know how you get on.

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