2.3L – Intermittent Engine Over-Temperature Warning Message With DTC P1026 And/Or P1299 After A Cold Engine Start – 2022-2023 Ford Explorer

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NHTSA ID Number: 10244833

Manufacturer Communication Number: SSM 51984

Summary

Some 2022-2023 Explorer vehicles with 2.3L engine built on or before 20-Jul-2023 may exhibit an intermittent malfunction indicator light (MIL) with diagnostic trouble code (DTC) P1026 and/or P1299 present in the powertrain control module (PCM) and an engine over-temperature message displayed on the instrument panel cluster (IPC) after a cold engine start. The vehicle will also exhibit reduced performance when it enters fail safe cooling open loop mode. If the engine is not overheating, clear the DTCs to reset the fail safe cooling open loop mode. Start and idle the engine while viewing coolant flow at the top inner (engine side) degas bottle hose port through the semitransparent top. If there is no coolant flow, replace the L1MZ-8A365-AAD engine-to-degas bottle hose. If if there is any coolant flow, return to Workshop Manual (WSM), Section 303-03A diagnostics.

 


2 Affected Products

Vehicle

MAKE MODEL YEAR
FORD EXPLORER 2022-2023

 


1 Associated Document

Manufacturer Communications

SSM 51984
2022-2023 Explorer – 2.3L – Intermittent Engine Over-Temperature Warning With DTC P1026 And/Or P1299 After A Cold Engine Start – Built On Or Before 20-Jul-2023

https://www.nhtsa.gov/recalls?nhtsaId=10244833

MC-10244833-0001.pdf 46.22KB

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NHTSA ID Number: 10238447

Manufacturer Communication Number: SSM 51756

Summary

Some 2022-2023 Explorer vehicles equipped with a 2.3L engine may exhibit an intermittent malfunction indicator light (MIL) with diagnostic trouble code (DTC) P1026 and/or P1299 present in the powertrain control module (PCM) and an engine over-temperature message displayed on the instrument panel cluster (IPC) after a cold engine start. The vehicle will also exhibit reduced performance when it enters fail safe cooling open loop mode. If the engine is not overheating, clear the DTCs to reset the fail safe cooling open loop mode. Start and idle the engine while viewing coolant flow at the top inner (engine side) degas bottle hose port through the semitransparent top. If there is no coolant flow, replace the L1MZ-8A365-AAD engine-to-degas bottle hose. If if there is any coolant flow, return to Workshop Manual (WSM), Section 303-03A diagnostics.

 


1 Associated Document

Manufacturer Communications

SSM 51756
2022-2023 Explorer – 2.3L – Intermittent Engine Over-Temperature Warning Message With DTC P1026 And/Or P1299 After A Cold Engine Start – Check Coolant Flow

https://www.nhtsa.gov/recalls?nhtsaId=10238447

MC-10238447-0001.pdf 29.111KB

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NHTSA ID Number: 10236336

Manufacturer Communication Number: SSM 51625

Summary

Some 2022-2023 Explorer vehicles equipped with a 2.3L engine may exhibit an intermittent malfunction indicator light (MIL) with diagnostic trouble code (DTC) P1026 and/or P1299 present in the powertrain control module (PCM) and an engine over-temperature message displayed on the instrument panel cluster (IPC) after a cold engine start. The vehicle will also exhibit reduced performance when it enters fail safe cooling open loop mode. If the engine is not overheating, clear the DTCs to reset the fail safe cooling open loop mode. Start and idle the engine while viewing coolant flow at the top inner (engine side) degas bottle hose port through the semitransparent top. If coolant flow is blocked, replace the L1MZ-8A365-AAD engine-to-degas bottle hose. If flow is steady, return to Workshop Manual (WSM), Section 303-03A diagnostics.

 

1 Associated Document

Manufacturer Communications

SSM 51625
2022-2023 Explorer (U625N) (TW)
2022-2023 Explorer – 2.3L – Intermittent Engine Over-Temperature Warning Message With DTC P1026 And/Or P1299 After A Cold Engine Start – Check Coolant Flow

https://www.nhtsa.gov/recalls?nhtsaId=10236336

MC-10236336-0001.pdf 28.438KB

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