Engine braking on 2017 F150 5.0L
I have a 2017 F150 with the 5.0 engine. When I tow my TT in tow haul mode, it seems to me that Ford has overdone it with the engine braking. As I apply the brakes, it downshifts really hard and revs ...
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mkirsch the ECM will tell the tranny to upshift and force an upshift.
If you are over the ECM's RPM limit and try to manually downshift, the ECM won't let that happen. There is no mechanical link from the shifter to the tranny anymore. Hasn't been for many, many years.
Long gone are the days of mechanical transmission governors and vacuum modulators.
Ever notice that a lot of tach's don't have any yellow or red lines painted on them anymore?
If you are over the ECM's RPM limit and try to manually downshift, the ECM won't let that happen. There is no mechanical link from the shifter to the tranny anymore. Hasn't been for many, many years.
Long gone are the days of mechanical transmission governors and vacuum modulators.
Ever notice that a lot of tach's don't have any yellow or red lines painted on them anymore?
