Some 2018-2019 Ford Flex, Explorer, Taurus and MKT vehicles equipped with a 3.5L EcoBoost engine may exhibit a MIL on, Service Advance Trac message, Hill Start Assist Not Available message, and/or a lack of power along with DTCs P0107, P0108 and/or P0109.
This may be due to a faulty MAPT (manifold absolute pressure and temperature sensor). To correct the condition, using a scan tool with the key ON/engine OFF, access the PCM and monitor the following parameter identification:
1. BARO (press)
2. MAP (press)
3. TCBP (press)
4. TURBO INLET (press)
If the MAP (press) PID value does not read within 10.35 kPa (1.5 psi) of the other sensors, replace the MAPT sensor.
Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.
Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety ofspecialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.
