I put this comment in the 150General posts back in November..."Been meaning to provide this comment for a while. Have a February 2012 diesel Altitude. After reading pradopoint, I've had the tail shaft replaced, no more clunking and ecu flash upgrade, no more surge. Prior to ecu upgrade, had noticed intermittently the 1500 rpm noise as described on Pradopoint. Have had ecu upgrade for about 8 weeks now and have noticed no more 1500 rpm drone. Have driven deliberately at 1500 rpm to try & make it happen but does not occur. Maybe just coincidence, but ecu upgrade really does seem to have fixed this problem. Suggest others try this before attempting expensive mechanical/ structural fixes."...
The ECU upgrade really does seem to have fixed the drone problem that I was getting intermittently on my Prado. suggest others consider as a possible fix. driving in D around town now like driving in the old S4 setting which others suggest stopped the 1500 rpm drone problem.
The ECU upgrade really does seem to have fixed the drone problem that I was getting intermittently on my Prado. suggest others consider as a possible fix. driving in D around town now like driving in the old S4 setting which others suggest stopped the 1500 rpm drone problem.
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