p0743??? - Ford Powerstroke Diesel Forum
 
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post #1 of 10 Old 05-14-2008, 10:09 AM Thread Starter
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p0743???

got the p0743 code today.... i was searching around and everyone else who had this also got a p0741 code. maybe my scanner didnt pull that one ?

What to do now. f81z-7g391-cb is the part number needed right? is this just something i am going to have to go into ford for?

2000 F-250 CC SB
300K MILES, HEAVY DUTY 4R100 W/ AFTERMARKET COOLER (HAVE 6.0 COOLER, NEED TO INSTALL)
TW CHIP
BOOST, PYRO, TRANNY TEMP, AND FUEL LEVEL
4" TURBO BACK, S&B W/ ZOODAD
B&W GOOSENECK HITCH, COBRA CLASSIC 29 NW
315/75 R16 BFG A/T, 350 REAR BLOCKS, 3" HANGER KIT FRONT
ITP OVERBOOST, CCV MOD, HPX, CCK
RECON SMOKED TAIL LIGHTS & CAB LIGHTS W/ WHITE LEDS
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post #2 of 10 Old 05-14-2008, 01:55 PM Thread Starter
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bump........

2000 F-250 CC SB
300K MILES, HEAVY DUTY 4R100 W/ AFTERMARKET COOLER (HAVE 6.0 COOLER, NEED TO INSTALL)
TW CHIP
BOOST, PYRO, TRANNY TEMP, AND FUEL LEVEL
4" TURBO BACK, S&B W/ ZOODAD
B&W GOOSENECK HITCH, COBRA CLASSIC 29 NW
315/75 R16 BFG A/T, 350 REAR BLOCKS, 3" HANGER KIT FRONT
ITP OVERBOOST, CCV MOD, HPX, CCK
RECON SMOKED TAIL LIGHTS & CAB LIGHTS W/ WHITE LEDS
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post #3 of 10 Old 05-14-2008, 02:34 PM Thread Starter
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nobody......????

2000 F-250 CC SB
300K MILES, HEAVY DUTY 4R100 W/ AFTERMARKET COOLER (HAVE 6.0 COOLER, NEED TO INSTALL)
TW CHIP
BOOST, PYRO, TRANNY TEMP, AND FUEL LEVEL
4" TURBO BACK, S&B W/ ZOODAD
B&W GOOSENECK HITCH, COBRA CLASSIC 29 NW
315/75 R16 BFG A/T, 350 REAR BLOCKS, 3" HANGER KIT FRONT
ITP OVERBOOST, CCV MOD, HPX, CCK
RECON SMOKED TAIL LIGHTS & CAB LIGHTS W/ WHITE LEDS
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post #4 of 10 Old 05-14-2008, 07:51 PM Thread Starter
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with this code the truck has been really rough. stumbling, a lot of change in the rpms. wont idle properly. but it does this intermittently, it is not everytime i drive or all the time whne driving. also the torque converter wont lock up.

so i know this code would cause the torque converter problems but are the other symptoms common to this or do i have another problem along with it?

2000 F-250 CC SB
300K MILES, HEAVY DUTY 4R100 W/ AFTERMARKET COOLER (HAVE 6.0 COOLER, NEED TO INSTALL)
TW CHIP
BOOST, PYRO, TRANNY TEMP, AND FUEL LEVEL
4" TURBO BACK, S&B W/ ZOODAD
B&W GOOSENECK HITCH, COBRA CLASSIC 29 NW
315/75 R16 BFG A/T, 350 REAR BLOCKS, 3" HANGER KIT FRONT
ITP OVERBOOST, CCV MOD, HPX, CCK
RECON SMOKED TAIL LIGHTS & CAB LIGHTS W/ WHITE LEDS
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post #5 of 10 Old 05-14-2008, 07:57 PM
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P0743 Torque Converter Clutch System Electrical Failure
P0741 Torque Converter Clutch Circuit Performance/Stuck Off

There are 2 different issues. I would consult a trans shop.

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post #6 of 10 Old 05-14-2008, 08:36 PM Thread Starter
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ok thanks. that is what i am going to do. i am taking it back to the trans shop that just did the work on it, they said they would get it all figured out.

2000 F-250 CC SB
300K MILES, HEAVY DUTY 4R100 W/ AFTERMARKET COOLER (HAVE 6.0 COOLER, NEED TO INSTALL)
TW CHIP
BOOST, PYRO, TRANNY TEMP, AND FUEL LEVEL
4" TURBO BACK, S&B W/ ZOODAD
B&W GOOSENECK HITCH, COBRA CLASSIC 29 NW
315/75 R16 BFG A/T, 350 REAR BLOCKS, 3" HANGER KIT FRONT
ITP OVERBOOST, CCV MOD, HPX, CCK
RECON SMOKED TAIL LIGHTS & CAB LIGHTS W/ WHITE LEDS
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post #7 of 10 Old 05-14-2008, 08:39 PM
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Good deal.

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post #8 of 10 Old 05-14-2008, 08:41 PM Thread Starter
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do you happen to know about the symtoms i have discribed above?

2000 F-250 CC SB
300K MILES, HEAVY DUTY 4R100 W/ AFTERMARKET COOLER (HAVE 6.0 COOLER, NEED TO INSTALL)
TW CHIP
BOOST, PYRO, TRANNY TEMP, AND FUEL LEVEL
4" TURBO BACK, S&B W/ ZOODAD
B&W GOOSENECK HITCH, COBRA CLASSIC 29 NW
315/75 R16 BFG A/T, 350 REAR BLOCKS, 3" HANGER KIT FRONT
ITP OVERBOOST, CCV MOD, HPX, CCK
RECON SMOKED TAIL LIGHTS & CAB LIGHTS W/ WHITE LEDS
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post #9 of 10 Old 05-14-2008, 08:52 PM
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Sounds like your converter is trying to lock up at idle, I don't know really. I'm not a transmission guy.. so.. I don't know. The issues you listed above could be a lot of things, but you would have other codes.

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post #10 of 10 Old 05-14-2008, 09:00 PM Thread Starter
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alright good to know. i will see what happens after the transmission shop is done and go from there.

2000 F-250 CC SB
300K MILES, HEAVY DUTY 4R100 W/ AFTERMARKET COOLER (HAVE 6.0 COOLER, NEED TO INSTALL)
TW CHIP
BOOST, PYRO, TRANNY TEMP, AND FUEL LEVEL
4" TURBO BACK, S&B W/ ZOODAD
B&W GOOSENECK HITCH, COBRA CLASSIC 29 NW
315/75 R16 BFG A/T, 350 REAR BLOCKS, 3" HANGER KIT FRONT
ITP OVERBOOST, CCV MOD, HPX, CCK
RECON SMOKED TAIL LIGHTS & CAB LIGHTS W/ WHITE LEDS
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