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Thread: why won't my car downshift?
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04-13-2006, 08:16 PM #1Member
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- 1990
why won't my car downshift?
Whenever its in fourth gear like on the highway and I floor it the car won't downshift, so I have to downshift manually. Anyone know why it does this? Shouldn't it downshift into 2nd when I hit WOT?
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04-14-2006, 11:07 AM #2Senior Member
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05 Wrangler- 00 Z28 sold :-(
OoOoOh the legendary "dead spot" in the 4l60-e
You either have to get a higher stall TC or find out which speeds kick down and which don't. I know anywhere in the 60mph range and it kicks down hard...40-50 it never does...and 28ish and under it'll slam into 1st hard. Just spend some time crusing on a open road at different speeds and see where yours kicks down.
BTW...did you swap gears/rear from a M6 car?
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04-14-2006, 02:04 PM #3Member
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Yes I swapped rearends from an 02 Z28 M6 but I kept my axles.
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04-14-2006, 03:12 PM #4Blown, Stroked, & Sprayed
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Black- 383 Procharged & N20 Vert
Did you re-tune the PCM for the new gears?
Black 1999 Blown Convertible A4
Forged 383 | ATI D-1SC
NX MAF Kit | 222/226 .585 115
AS Stage II 6.0L FI Heads
Moser 9" | 3.70 | Wavetrac | 35 Spline | Vigilante 3600
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Black 2009 Escalade Hybrid 4WD
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04-15-2006, 08:04 AM #5Member
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Yes I did reprogram it for the new gears. Can I program it to downshift from 4th to 2nd?
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04-16-2006, 03:47 PM #6Senior Member
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black- 2014 camaro 2ss/rs
going from 4th to 2nd at 80 mph isn't a good thing to do. it should go to third, though.
Cold Air Intake, Muffler Delete, Vinci High Performance Dual Valve Springs, Hardened Pushrods, Yella Terra 1.85 Rockers, Some Hydropdipped Stuff, Strut Tower Brace, Some SS Badges, boost/vacuum gauge, fuel pressure gauge, some checkered stripes, drilled/slotted rotors, ZL1addons Stealth wickerbill, Ruxifey LED side markers
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