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Trans Issues

Old Aug 14, 2013 | 01:34 AM
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Trans Issues

looking into the knowledge of yaw on the forum, you guys have been a big help and didnt even know it and i have fixed all the little issues that has came up with my new to me truck of 3 yrs just with the search button but cant seem to find this one or maybe im using the wrong verbage, so please dont flame me if i missed it, so here it goes the short version, 03 7.3 w/4R100 4WD crew cab long bed w/228K on the od, will not shift into 3rd and of course 4th when it gets up to temp, all indications normal, this happened to me on my way to work first time this ever has happened, left work tonight cold trans shifts normal till temp stabilizes normal come to a complete stop and again no shift to 3rd or 4th, sometimes the 1st to 2nd shift is nice and firm and then the next time its soft and barely know it shifted, fluid level is correct and not burnt smelling or black in color, since ive had the truck the trans has never been over temped always ran half way on the guage, fearing the worst and want a BTS Trans but not right now, and would like it be drivable when i do it, sorry for typeO's but its late and just got off work, thx in advance
 
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Old Aug 14, 2013 | 08:14 AM
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It could be a stuck shift valve, a stuck shift solenoid, loose feed bolts that feed pressure to the clutches, or a bad direct clutch.
 
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Old Aug 14, 2013 | 09:43 AM
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thx Mark are any of these things be accomplished by me or are they deep in the trans and need a trans guy? thx in adavance
 
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Old Aug 14, 2013 | 01:49 PM
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All but the clutch can be accessed by removing the pan and valve bodies. The clutch requires the trans to come out and get torn down.
 
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Old Aug 15, 2013 | 12:55 AM
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Thx Mark, im going to limp to the shop that i use and see if i have any trans codes, oh i forgot to mention in my first post ( hard to remember at this time of night) ever since ive owned the truck the OD button on gear selector doesnt work, ie when you push the button the "OFF" legend doesnt illuminate, nor does it flash, thx in advance Kevin
 
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Old Aug 15, 2013 | 01:02 AM
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Mark also forgot to ask, if no codes how do i know in which direction to go with the things you mentioned (which one is the highest failure rate to the least)
 
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Old Aug 15, 2013 | 09:33 AM
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I would do it in the order I listed it.

Originally Posted by Mark Kovalsky
It could be a stuck shift valve, a stuck shift solenoid, loose feed bolts that feed pressure to the clutches, or a bad direct clutch.
 
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Old Sep 6, 2013 | 08:52 PM
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hey guys just got off of an over 20 day OT stent thats why this went dead, and havent had time to mess with my truck, in this day and time ill take all of it i can, so got the truck back from the shop here is the codes, p1280, p0733, p0743, p0460, p0782, p0781, p0741, p1876, p1832 yea wow, have yet to see a check engine light besides the one i get on the first start of the day if i havent driven it in a couple of days but only stays on for 30 sec with an low idle light goes off idles back to normal, been advised to change the ICP sensor and pigtail, it leaks anyway so i know it has issues, but being told ICP if bad could make the trans go into limp mode no 3rd shift? i dont know will start here ICP has a leak and needs R&R'D anyways, any thoughts or advice would be great, and to all that has chimed in thx again. hopefully monday we will see if it does the trick.
 
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Old Sep 6, 2013 | 10:58 PM
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P1280 - ICP circuit out of range LOW.
P0460 - Fuel tank level indicator circuit malfunction
p0733 - gear 3 ratio error
p0743 - converter clutch electrical failure
p0782 - 2-3 Shift Malfunction
p0781 - 1-2 Shift Malfunction
P0741 - Torque Converter Clutch Circuit
p1876 - t-case 2wd solenoid circ open/ short to grd
p1832 - t-case 4wd solenoid circ open/ short to grd
 
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