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Old 02-10-2017, 08:31 PM
SKYWALKR SKYWALKR is offline
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Default Need Help - feels like I have 2 4th gears

Gents,

The last 2 days it feels like I have. 4th gear low and 4th gear high and one of them is a hard jarring shift. Typically this is under low or moderate acceleration like in traffic.

The truck is ******d with GH tunes for the last 6000 miles, but this is new. I run the level 3 tune and i ABSOLUTELY baby the truck; probably been full throttle 8 times and one of them was to learn the transmission. Truck only has 26000 miles... what gives.

The shift is HARD AND JARRING on the 4th "second" shift...

Help me out, I can't imagine the trans is toast already... ford must have done better than that...

Semper Fi
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Old 02-11-2017, 03:18 PM
SKYWALKR SKYWALKR is offline
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Any ideas? Maybe refresh the tune?
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Old 02-11-2017, 04:32 PM
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Codydiesel Codydiesel is offline
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That would be your torque converter locking in.
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Old 02-12-2017, 10:32 AM
Tsgs69400 Tsgs69400 is offline
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Mine feels the same way in 3rd. But not very harsh..
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Old 02-12-2017, 12:37 PM
SKYWALKR SKYWALKR is offline
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Why would the TC lock up be so harsh or noticeable all of a sudden? And, just in one gear?

Thanks for the Intel, by the way.
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Old 02-12-2017, 02:07 PM
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dsmracing1 dsmracing1 is offline
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Quote:
Originally Posted by SKYWALKR View Post
Any ideas? Maybe refresh the tune?


Yeah I would try and reflash the tune and just drive the truck the way you normally do right from the get go. Just talk to your tuner or who you bought the tunes from and they should be able to help you out for sure! Definitely sounds like your torque converter as earlier mentioned...
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Old 02-15-2017, 02:20 PM
SKYWALKR SKYWALKR is offline
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I have noticed this condition seems to be linked to the times when my wipers activate for one swipe sporadically (not the coutesy wipe). As if the ECU does some kind of lite reboot and at start up the wipers activate for one swipe and my transmission needs to relearn.

Could be a coincedence, but the last (2) times I got the one wipe my transmission also seems to be learning the shifts and TC lock up timing.
  #8  
Old 02-20-2017, 11:16 AM
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Mine does this all the time. I've even noticed it on our old service trucks. Sometimes my trans like to lockup the converter in 2-6 but sometimes it won't lock till it does that 4lo-4hi gear like you said. Sometimes my TQ converter won't lock till 6th gear.
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Old 02-21-2017, 06:46 AM
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with GH tunes the converter should be locking in 3rd, at least thats when mine always locks.
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Old 02-21-2017, 07:02 AM
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Have you tried contacting Mike @nolimit?


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