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Old 06-10-2011, 07:03 PM
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weird shifting issue

I have noticed a strange shifting issue with my truck in the last few days. When it shifts into third every now and then under the right load during normal acceleration, it revs up a little then shifts kinda hard. I am using the innovative extreme street tune and it has shifted a little hard since I installed it, so the actual shift is probably normal, it's just the quick rev that's bothering me. It's almost like it's slipping or something. I wouldn't think anything about it normally, but it hasn't been doing it for a month or so after the custom tune. Also, I just noticed a few second gear shifts at light throttle where it seemed to shift, then kinda bog down and then go. Kinda weird. Also, ran it full throttle after noticing this and it seemed to work perfect.
I was just wondering if anybody had ever seen this before.
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Old 06-11-2011, 05:34 PM
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Ok, it left me stranded today. This morning, I headed out and after a few miles, it started flashing the tow/haul light. I pulled over, set the program back to stock and checked the codes on the sct. I had two codes. I know one was PO761 and can't remember the other. I cleared them and started to limp it home. It started shifting really weird and slipping after this, and started flashing the tow/haul light again, so I pulled over and decided it wasn't gonna make it. I checked the codes again and they were: PO761:shift solenoid C (ss-c) performance or stuck off, and P2702:transmission friction element C apply time range/performance. The first time I checked the codes, it didn't have the PO2702. It was something else along with the PO761. Maybe because it didn't seem to slip before the first time I checked it, but did pretty bad the second time.
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Old 06-14-2011, 01:22 PM
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Old 06-14-2011, 01:31 PM
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Sounds like it is what you think it is. My friends went out and threw every code that the trans could.
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Old 06-11-2012, 01:01 PM
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Same problem here. I have an 04' F350, 6.0 5 speed auto. A little over a year ago I was using a Super Chips Flash Paq tuner, One day I was getting on the highway, I laid into it to get into traffic, on the 3rd to 4th shift it just fell on its face & would not shift till I lifted a little. It was fine for about a week after. Then it started to do it all the time. I change the fluid every year right after plowing season & before towing season. This happened at about 130,000 miles. I started to look into it on the internet, Via others solutions I bought a SCT tuner. It did it with that to. OK, so I have 130k on it & I tow & plow. Took it the trans shop, they said they could not explain what it was doing but I had them pull it anyways. They said it was a pretty good shape inside. They tried new selonode packs, a complete rebuild (it was out & apart with 130k so what the hey) Well it is still doing it. I have had it to the dealer, they found some wires from the TPS (peddle) to the ECU that were not the right, they rewired from one to the other. $1000 buck later & it seemed to be ok, That was in March, just last week it has started again, worse than ever & its throwing code now. P0341, P2290, P0761, P2702. My question is this, has anyone found the real solution to this problem? Like I said I had it rebuilt, change the fluid & filters every spring, check the level all the time. It driving me nuts. I love my truck but I'm turning grey every time I drive it now. By the way I have 139,000 on it now.
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Old 06-11-2012, 01:02 PM
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P2702 & P0761
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