Auto tranny not finding 1st gear? - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 03-01-2011, 06:34 PM Thread Starter
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Question Auto tranny not finding 1st gear?

So I have been running a custom tune for about a month now and have loved it. However, today I went for a quick drive to get some lunch and my tranny was acting a little wierd so I did some stops and starts. It seems like the tranny (which is auto) is starting in a higher gear, 2 or 3, when I start from a low speed or stop and as I try to accelerate it really lugs until the truck realizes it's not in the correct gear then it down shifts and takes off like a rocket because I've had to depress the gas so far to get it to respond. Does this sound like a tranny problem to ya'll or a tuning issue?

I have intentionally not included the tune I am running so I can allow the tuner to fix it before I say anything negative, if you guys do think it's a tuning issue. It is from one of the prefered tuners given from this site so you can rule out a cheap off brand tuner if that was going to be mentioned.

Thanks for any input that you can provide.

Truck info in sig.



06 F-350 CC, SB, Lariat- Insight CS, High idle, dieselsite coolant filter, 4" Diamond Eye, CAT ELC, 6.4 banjos w/reg kit, SCT w/MKM, SRL, or Looney, Leveled, PHP tuned 48v FICM, HID heads&fogs.
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post #2 of 4 Old 03-01-2011, 06:41 PM
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im sure there are trans sensors or seloniods that can cause the problem..doesnt seem like it can be the tune if you have been runnig it for a while. uless your destroying the trans
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post #3 of 4 Old 03-01-2011, 06:53 PM Thread Starter
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I would have a hard time believing the tune would destroy the tranny with as popular as this tuner is, but I have heard of tunes become corrupt and causing some strange issues. Or if there is anyone with direct knowledge of similar issues that are tranny related. Thanks for the reply



06 F-350 CC, SB, Lariat- Insight CS, High idle, dieselsite coolant filter, 4" Diamond Eye, CAT ELC, 6.4 banjos w/reg kit, SCT w/MKM, SRL, or Looney, Leveled, PHP tuned 48v FICM, HID heads&fogs.
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post #4 of 4 Old 03-02-2011, 06:28 PM
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Mine has done that in the past and usually when it acts up, a quick retune will fix her up. Sometimes retuning back to stock, running a bit, then reloading hi-po tune will also work.

So IMO, i would return to stock and see what happens. If problems persists, then most likely not tune. If problem goes away. Then I would reload new tune and see what happens.

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