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Old Apr 16, 2015 | 11:54 AM
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Stock 5.3/4l60e swap in a 55 Chevy. You can feel the car shift through all of the gears but it constantly feels like its in 1:1. If you let off of the gas at road speed, the car slows down like there's a drag. Car has a factory 3.7x gear. Getting horrible gas mileage but unfortunately there is no tach.
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Old Apr 16, 2015 | 01:02 PM
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Have you tried shifting it through the gears manually?
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Old Apr 16, 2015 | 01:40 PM
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no but you can count ,it shifts 3 times, i do have the camero brake light switch ,for the TCC were it has 12v until you press the brake and it takes it off , that is working fine too

thanks
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Old Apr 16, 2015 | 02:23 PM
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Could the drag be the convertor staying locked in when you let off the gas? Try light pressure on the brake just to ensure that the convertor is unlocked. How horrible is the fuel mileage?
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Old Apr 16, 2015 | 02:30 PM
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well it feels like driving something with a engine (jake ) brake ,, the mileage cant tell ,, theirs not a lot of freewheeling ,ill try taping the brake while driving
thanks
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Old Apr 16, 2015 | 02:33 PM
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^^^^^ That’s what I’m thinking also.
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Old Apr 16, 2015 | 03:30 PM
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could this be in programing ? cause when i first had it dyno he added high idel and something like this in to save on using the brakes . i had him to remove this ,, woundering if he did ?

thanks
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Old Apr 16, 2015 | 05:52 PM
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How is your convertor lock up solenoid wired up? Are you using the PCM to control it?
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Old Apr 17, 2015 | 04:52 AM
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i dont know, i guess so .
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Old Apr 17, 2015 | 08:11 AM
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Try unplugging the brake light switch and take it for a test drive. If it has a lot more power on the test drive, then most likely something is wrong with the convertor lock up solenoid circuit.
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Old Apr 17, 2015 | 07:53 PM
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ok i unpluged the TCC wire and drove it , i could tell something was up on low end for sure ( worse ) the top end was the same no difference , so i am going to a tranny shop and they can plug it in and check it
thanks
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Old Apr 17, 2015 | 08:59 PM
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I'm at a loss.
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Old Apr 18, 2015 | 04:58 AM
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well like i said , when it was first tuned he added something that would hold it back, he said some people like it to help not using the brakes as much , he also added a high idle on start up , i didnt like either , so i send the ecm back to him and he was suppose to remove them i dont think he did ,i dont know were to take to a tranny shop and like them plug it in or fine a tuner and have them look at it ,, either way ill you all know what i find

thanks
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Old Apr 19, 2015 | 12:44 AM
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Where did you unplug the TCC wire? Sounds like the transmission went into "limp mode" and was taking off in 2nd if low end power was worse
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Old Apr 19, 2015 | 06:36 AM
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i did it at the brake switch, can someone verify that there is a setting like this in HP tuners is there some were i can look at what it looks like in HP tuner
2 things
high idle on start up ,, its higher than normal
and the brake hold back -or what ever its called

thanks ,
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Old Apr 20, 2015 | 11:07 AM
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can someone look at HP tuner and see if there is a spot to able or disable something like this ??
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Old Apr 20, 2015 | 11:31 AM
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I'm sorry but I don't have any tuning soft wear, so I can't help you there.
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