Quote:
Originally Posted by Ron Burgandy
This isn’t a toyota problem, any stock gas engine since their induction has never been able to hold overdrive climbing a hill. There just isn’t enough torque at low rpms.
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Most of us aren't talking about steep hills where a downshift is necessary. We're talking long, minor highway grades. The 4runner is more than capable to handle those sort of grades in 5th with the CC off as I do it all the time. But with CC on, it will often downshift to 4th. Rather than unlock the TC to get the extra torque multiplication to crest the grade, the ECU decides a 5 to 4 shift is better. Makes no sense why they do this way. This over-reactive shift logic also appears to be the cause of gear hunting and holding onto 4th for an excessive amount of time well after cresting the hill.
