4L60E Won't Downshift Into 2nd under WOT. Is this correct?
#1
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4L60E Won't Downshift Into 2nd under WOT. Is this correct?
I continue to be impressed by the precision given on these forums.
I would like to ask a question regarding transmission downshift during WOT. I have a 94 with the electronic automatic, running a 2.59 gear.
WOT at 45-55-65-70 mph will not drop me to second gear. I can manually downshift.
How can this be? OD comes in at @48mph, and I will drop down to 3rd with minimal acceleration, but NEVER second. Since there is no longer a TV cable on this tranny, I have no idea what to adjust, or if there is actually a problem. Just seems to me it should kick down into second. At 50 mph, I am turning 3k rpm if I manually shift it into second, right in the middle of the torque curve.
Is this normal programming, or is it troubleshooting time?
:confused:
I would like to ask a question regarding transmission downshift during WOT. I have a 94 with the electronic automatic, running a 2.59 gear.
WOT at 45-55-65-70 mph will not drop me to second gear. I can manually downshift.
How can this be? OD comes in at @48mph, and I will drop down to 3rd with minimal acceleration, but NEVER second. Since there is no longer a TV cable on this tranny, I have no idea what to adjust, or if there is actually a problem. Just seems to me it should kick down into second. At 50 mph, I am turning 3k rpm if I manually shift it into second, right in the middle of the torque curve.
Is this normal programming, or is it troubleshooting time?
:confused:
#2
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Member Since: Oct 2002
Location: Pitman NJ
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Re: 4L60E Won't Downshift Into 2nd under WOT. Is this correct? (Da Wiz)
I've got the same set up as you and I'm no tranny expert but my tranny does down shift unlike yours. I did install a Trans-go shift kit as well as a tranns cooler. I had mine repaired after I blew it up on the track. I've added extra clutches and Kevlar bands to beef it up. The bottom line is I think your in for some troubleshooting like you said. Good luck.