Shifting Timing. 3rd vs D.
#1
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2001 automatic trans. Is shifting timing different between having the shifter on 3 vs having it on D? Having it on 3 for me seems to keep RPM a little higher and more consistently at 2k - 2.5k rpm. I get a little better gas milage around these Tennesee hills too.
#3
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Year: 1998
Model: Cherokee (XJ)
Engine: 4.0
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It also locks the torque converter in 3rd, and it allows you to dip into the throttle a lot more before it unlocks compared to how the TC behaves in 4th.
Last edited by IJM; 02-16-2022 at 01:59 PM.
#4
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The only difference I've found is that in 3 the torque converter will lock up in 3rd. In D it will only lock up in 4th. It's almost like it gives you an extra gear between 3-4!
#6
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My 95 will lock up in 3rd. Lower kpa in the map table will keep the timing high and prevents fuel enrichment. I've run additional timing on various years for a while now.
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