Trans wont downshift in sports mode
#1
Trans wont downshift in sports mode
Hi guys my car started to develop this odd issue a couple days ago, the car bogs instead of downshifting in Sports mode at 30mph, so im guessing from 3rd to 2nd? Usually around that speed and on Sports mode the car would downshift and pull really hard but now it bogs down (even in WOT ) and after 3 seconds it grabs 3rd again and continues like nothing happened also when I brake really hard the engine sputters for 2 seconds then smooths out... very odd... but other than that the car drives and shifts normaly on normal driving. I replaced the PNP switch with a new one straight from the dealership 5 months ago. Also, I only use sports mode when I need the power to accelerate, I usually leave it on economy mode on normal driving.
#3
This is just sittin' on my butt guessing.
Car works normally in Econ mode. Up shifts and downshifts as it should. Car malfunctions in Sport mode only.
Not a hard transmission problem, likely something in the transmission computer control unit.
Again I'm just guessing but it would make sense. If no other suggestions come in you might want to try a different trans ECM.
Car works normally in Econ mode. Up shifts and downshifts as it should. Car malfunctions in Sport mode only.
Not a hard transmission problem, likely something in the transmission computer control unit.
Again I'm just guessing but it would make sense. If no other suggestions come in you might want to try a different trans ECM.
#5
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09-29-2008 07:54 PM