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2019 Ford Transit-150 3.7L Hesitation, Backfire
Posted to Ford Driveability on 3/24/2026 10 Replies

Installed the new Ford factory complete engine 5000 miles ago. Customer said this backfire slowly started coming about 1000 miles ago. The hesitation/backfire comes when accelerating at about 3/4 throttle. Fuel pressure is good. Injectors all test the same...

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car Vehicle Data

2019 Ford Transit-150

VIN 1FTYE2CM6K
Engine3.7 L / 6 cyl / FLEX
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection / MFI
EmissionsOBD-II Compliant
SymptomsHesitation, Backfire
OccursUnder Load, on Accel
Open Help Request

car Vehicle Data

2019 Ford Transit-150

VIN 1FTYE2CM6K
Engine3.7 L / 6 cyl / FLEX
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection / MFI
EmissionsOBD-II Compliant
SymptomsHesitation, Backfire
OccursUnder Load, on Accel