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2020 Explorer ST issues I have numerous fault messages, pre collision assist fault, 4wd temp disabled, 4wd system fault service required, service required, drive mode unavailable fault,auto hold system fault,service advancetrac, backup assist not available. I was I-10 near buckeye, AZ when the...

I was on a blacktop road in rural AZ near Tonopah Has a few dips & not very smooth so the dips make it a little harry at that speed That is why I backed out of it Not sure where it would top out I have read somewhere that the Police Pursuit versions have a limited top end of 148

I am using 5 star with E30 & 93 octane calibrations https://5startuning.com/ Ordered the HPVI2 from the Tuning school May do some of my own calibrations Possibly custom calibrations offer a little better performance but I am happy with 5 star[thankyou]

Transfer case shifters[thankyou]

Good information Great that they use steel ring lands Years ago I installed turbo's on propane fueled engines At the high boost levels the high octane propane would allow, they often broke the ring lands between the top & second rings Had to replace them with forged pistons with larger cross...

Have a tuned ST Tuned with 5 star calibration Have had it to 148 MPH & backed off Was still pulling hard[burnout]

Hi All Just found this forum Retired automotive fuel systems engineer Have a 2020 ST purchased from Jones Ford in Buckeye, AZ December of 2019 Live in Tonopah, AZ Installed 5 star 93 octane tune the week after I purchased it Have owned 6 ecoboost vehicles all tuned They are 2011 F150 3.5L...