2000 supper duty po476

alan

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i just put in a diablo chip , exhaust.it is blowing two codes po 603 and po 476.it wont shift from second to drive or overdrive.it was shifting hard and not shifting till around 2500-3000rpm help:thanks
 

JRJ04

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the first code you mentioned simply means you have a chip in your truck. i have the same one with my superchip.
 

alan

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i pulled the batteries , it still wont shift. i made apointment with ford they had it for two days never looked at it said they couldnt get to it till next thursday now.so much for elk season this year.
 

bushpilot

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P0476 is part of the Auxilary Emissions Control Group...
Exhaust Pressure Control Valve Range / Performance.

P0603 is Computer & Auxiliary Group Outputs...
Internal Control Module Keep Alive Memory (KAM) Error

have you checked the trans fluid level ? have you PULLED the
chip ?
 

alan

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po476

the fluid level is good it is red and dont smell burnt.i removed the chip.i made another appointment at another shop for wed. hopefully they can fix it. i live 90 miles from reno but i dont want to hurt it anymore by driving that far
 

alan

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po733,p1744

the fluid level is good it is red and dont smell burnt.i removed the chip.i made another appointment at another shop for wed. hopefully they can fix it. i live 90 miles from reno but i dont want to hurt it anymore by driving that far
now this shop says it is blowing two different codes,and i need a torque converter,i am putting it back in the tranny shop to see if he can pull the codes up and fix it.do you think it can be the tourqe converter?:dunno
 

JRJ04

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how many miles? what other mods do you have? how hard do you drive it?
 

alan

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2000 super duty

315/75r16 toyo mud terrain,tripple gauges 4" exhaust ,diablo ,4' lift,warn 9500 winch, runell bumper,109 gallon fuel tank,lumber rack 80,000 miles .use it for work and hunting,i tow a bobcat , a boat.i drive it pretty hard my milage went from 17 to 11 so i decided to put in the program and exaust to get back some milage
 

alan

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2000 super duty

i was reading four wheeler and john wood has a article in there on the 4r100 tranny he said that there is a bypass on this trans so 30% of your fluid dont even go through your cooler.he sells a spacer to plug the holes so all the fluid goes through the cooler.calling today to order that.bully dog has a torque converter bd1030223 i am going to check on,found one for 850.00
 

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