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Old Dec 31, 2017 | 05:02 AM
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Exclamation Hard shift

I have a 2000 F250 7.3 superduty long bed 2wd with 160200 miles completely stock nothing has been done to it. It is shifting hard from 2-3 has a new Trans filter and fluid didn't help. I checked the shifter cable it is not loose at all, checked throttle position sensor seems to be working right, checked the idle switch behind it it is working, anyone have any ideas? Putting around town its really not that bad but if I have to give it any gas at all it seems to stall close to 2k rpm then will slam into gear so hard it barks the tires regardless of the speed. Im out of ideas help would be greatly appreciated thanks for your time.
 
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Old Dec 31, 2017 | 09:11 AM
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I can't help you with your problem but someone who can should along soon. I can tell you that it slamming into gear like that will likely drop it out the bottom of the truck before long.
 
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Old Jan 1, 2018 | 10:02 AM
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Ok I went back and double checked the tps and ivs are both working correctly and all valve body bolts are tight and springs are not broke or collapsed shift cable is tight and not stretched nss on Trans is tight clean and working correctly still can not figure out the hard shift
 
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Old Jan 1, 2018 | 10:19 AM
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Have you had it checked for codes? The places that read codes free CANNOT read these codes. You need either a good independent shop or a Ford dealer.
 
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Old Jan 1, 2018 | 10:40 AM
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Would a valve not functioning correctly, or loose feed bolt throw a code?
 
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Old Jan 1, 2018 | 10:46 AM
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Yes I checked for codes there was none I cleared computer just in case od light does not flash
 
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Old Jan 1, 2018 | 11:09 AM
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Originally Posted by Whitey Ford
Would a valve not functioning correctly, or loose feed bolt throw a code?
Either of those can set codes for incorrect RPM drop during a shift, or even a missed shift.
Originally Posted by Tim91bh8
Yes I checked for codes there was none I cleared computer just in case od light does not flash
Then my guess is that you have a sticking modulator valve in the accumulator body.
 
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Old Jan 1, 2018 | 11:12 AM
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Ok thanks ill check it later when I can get it to start its 16° right now lol
 
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Old Jan 1, 2018 | 01:04 PM
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Originally Posted by Mark Kovalsky
Either of those can set codes for incorrect RPM drop during a shift, or even a missed shift.
Thank you.
 
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