Question about tranny shifts
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Question about tranny shifts
I have noticed since I had my PCM reflashed at my 30K service my transmission shifts differently. Lets say I'm cruising along at any speed where the rpms are around 1K or even 1500 and I punch the accelerator to the floor. The trans proceeds to down shift and the truck seems to feel like it looses power and falls face forward until the rpms get above 1800 then it has it's power back. This is with the shifter in the overdrive position. If I push the button to turn the overdrive off it doesn't do this. But again, it does it at any speed where the rpms are low, including 20mph. So I can't see the truck already being in overdrive. Obviously it is worse at 40 mph than any other speed shifting out of OD, but still, I don't understand why it would do it at the lower speeds too. if I'm going 60mph or above it doesn't seem to do it or isn't really noticeable.
Mike's tunes seem to make it do it worse with less than full throttle. I spoke with him about this and he said it's because his tunes are making more power and that it has something to do with the way Ford has the shift schedule for my pcm code and at 40mph it feels this way because it's scheduled to down shift to second on full throttle command. He also said something about the reason I start to feel the power come back (my 1800rpm range) really at 2100 rpms (he said depending on the accuracy of the gauge) is having to do with that's were the Torque converter locks up. I do have an appointment to see him for the other stuff he's doing to my truck next week. Long tubes, here I come
Hopefully he can adjust something so it doesn't do it as bad.
When I had the Edge in my truck after the PCM was reflashed I didn't notice this issue. But it didn't seem to want to work right in my truck after the reflash.
Can I get some opinions on this? Thanks
Mike's tunes seem to make it do it worse with less than full throttle. I spoke with him about this and he said it's because his tunes are making more power and that it has something to do with the way Ford has the shift schedule for my pcm code and at 40mph it feels this way because it's scheduled to down shift to second on full throttle command. He also said something about the reason I start to feel the power come back (my 1800rpm range) really at 2100 rpms (he said depending on the accuracy of the gauge) is having to do with that's were the Torque converter locks up. I do have an appointment to see him for the other stuff he's doing to my truck next week. Long tubes, here I come
Hopefully he can adjust something so it doesn't do it as bad.When I had the Edge in my truck after the PCM was reflashed I didn't notice this issue. But it didn't seem to want to work right in my truck after the reflash.
Can I get some opinions on this? Thanks
Last edited by whitecrystal1; Mar 13, 2008 at 03:39 PM.
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Joined: Dec 2004
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From: Indiana
I hated my stock tune... and I had them (Ford) do the reflash of the PCM and still didn't like it. It seemed like it waited forever to downshift for me and in city driving (35-40) it would really shift weird sometimes.
I got the Edge and that fixed it all for me. That alone (IMO) made the Edge worthwhile.... but then again I got it used for $200
Now I run the Edge on the Level 2 settings and I like it much better
I got the Edge and that fixed it all for me. That alone (IMO) made the Edge worthwhile.... but then again I got it used for $200
Now I run the Edge on the Level 2 settings and I like it much better
