4l60e shift to third gear issue

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Jun 15, 2018 | 08:57 PM

Rick Speed

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4l60e shift to third gear issue

I installed a new stage 2trans because the car wouldn’t shift to third at WOT. Guess what new trans won’t shift to third at WOT either. Car has a 408 and yank 3600.

Jun 15, 2018 | 09:12 PM

G Atsma

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What is your rear end ratio? If it's too tall, WOT won't allow an upshift into 4th, and I've heard, sometimes 3rd. Slightly lifting will usually allow an upshift. True for you?

Jun 15, 2018 | 11:53 PM

Rick Speed

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I have 3:42 rear end out of a stick car. And yes when you lift it will shift.

Jun 16, 2018 | 09:45 AM

G Atsma

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Does the engine go to the rev limiter in 3rd and stay there?

Jun 16, 2018 | 10:06 AM

Rick Speed

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Yes it hits the limiter and just bounces until you lift

Jun 16, 2018 | 10:11 AM

G Atsma

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Sounds like the trans tune is off. The shift RPM has to be lowered.

Jun 16, 2018 | 10:14 AM

Rick Speed

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Rev is set to 7100 and shift we have moved around a little at about 6700 to 6800

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Jun 16, 2018 | 12:06 PM

Rick Speed

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Yes it hits 7100 and does nothing until you lift

Jun 16, 2018 | 12:34 PM

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G Atsma

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So it is basically "ignoring" the set shift point. If it's a new tranny, something in the programming is messed up

Jun 16, 2018 | 01:10 PM

#11

Rick Speed

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Yeah I’m trying to figure out where it could be wrong in the tune, I can attach a file of the tune as well right now for WOT shift MPH it is set to go to 3rd at 90 mph and RPM shift at 6800, but it doesn’t shift and just goes to redline, then I let off and it shifts just fine, I know it’s in the tune just don’t know where I’m the tune.

Jun 16, 2018 | 01:45 PM

#12

G Atsma

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Yeah, I can't answer that; I'm not "tune savvy".

Jun 18, 2018 | 03:09 PM

#13

moehorsepower

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RPM & MPH have to be met to complete a shift, not just RPM.

Jun 18, 2018 | 05:18 PM

#14

LFSADRG

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Very similar situation here. Have been to the track three times trying to get the 4L60E to shift. Post your tune and lets try to compare.

Jun 18, 2018 | 06:24 PM

#15

Rick Speed

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Ok well a local tuner helped me out. I tried to adjust MPH all over and it didn’t work. He told me to zero out the MPH. It worked. It now shifts to third at WOT.

Jun 18, 2018 | 08:31 PM

#16

MY_2K_Z

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I'll have to try that. My car doesn't like to make the 1-2 shift even set at 6400 it'll bounce off the limiter at 7250 and not shift until I lift.

Jun 19, 2018 | 07:14 AM

#17

moehorsepower

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Quote:

Originally Posted by Rick Speed

Ok well a local tuner helped me out. I tried to adjust MPH all over and it didn’t work. He told me to zero out the MPH. It worked. It now shifts to third at WOT.

Thats great but that doesnt always work , I find setting 1-2 shift at 5 mph and the 2-3 shift at 9 mph and depending on the flash stall, you can usually fine tune it to your desired shift points.

Jun 20, 2018 | 02:01 PM

#18

LFSADRG

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Interesting...so essentially for TPS at whichever percentage for WOT (mine starts at 94%) keep lowering the MPH until it shifts into gear properly?

Jun 20, 2018 | 02:12 PM

#19

LFSADRG

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Quote:

Originally Posted by Rick Speed

Ok well a local tuner helped me out. I tried to adjust MPH all over and it didn’t work. He told me to zero out the MPH. It worked. It now shifts to third at WOT.

If you have a moment, and have the tune available, can you post it so I (we) can compare? Thx

Jun 20, 2018 | 06:41 PM

#20

Rick Speed

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Quote:

Originally Posted by LFSADRG

If you have a moment, and have the tune available, can you post it so I (we) can compare? Thx

ill try yo upload it when I get home

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4l60e shift to third gear issue

4l60e shift to third gear issue

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