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P1740 Code

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Old May 22, 2009 | 03:34 PM
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Default P1740 Code

ok my truck is throwing a P1740 code. it is a TCC or O/D soleniod code. how do i know which one it is. and how do i replace them????
 
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Old May 22, 2009 | 05:45 PM
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i hope you like troubleshooting, lol



SYMPTOM
P1740-TCC O/D SOL PERFORMANCE

WHEN MONITORED
The Torque Convertor Clutch (TCC) and Overdrive Clutch (O/D) will be tested each time the PCM requests TCC engagement in 3rd gear and O/D.

SET CONDITION
The code will set if the expected RPM drop is not achieved while attempting to engage TCC or O/D. This indicates a malfunctioning torque convertor or overdrive clutch.

POSSIBLE CAUSES


Camshaft DTC Present
Engine RPM DTC present
Fuel level low
Misfire DTC present
Output speed DTC present
P1765 DTC present
Park/neutral DTC present
PTO engaged (if equipped)
Torque converter clutch DTC present
TPS DTC present
Transfer case in low range (if equipped)
Transmission relay DTC present
Transmission temperature too cold
Intermittent
Check transmission fluid-debris
Check transmission fluid-stall
3-4 shift solenoid
Oil pan contains excessive debris
Shaft or seal damage
TCC solenoid
Torque converter
 
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Old May 22, 2009 | 05:48 PM
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Old May 22, 2009 | 05:49 PM
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hmmm, now that i look at it, you kinda need a scanner for this one. hope you do, lol, gl
 
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Old Sep 29, 2011 | 04:13 PM
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bump...

what was the fix? I just got this code today.
 
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Old Sep 29, 2011 | 04:25 PM
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Your tranny, torque converter or OD unit is shot and needs rebuild, or you can try replacing the TCC/OD solenoid assembly and hope for the best.
 
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Old Sep 29, 2011 | 05:15 PM
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thanks for the reply.

I have had no issues, and I experienced none at the time. I just looked down at the red light and saw the CEL.

should I try a fluid change first?
 
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Old Sep 29, 2011 | 05:31 PM
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Yea, and inspect the wire harness while your in there, and remove and clean the Governor Solenoid and adjust the bands. Also look in the FAQ/DIY section and do the check valve delete. Can't hurt try before throwing in the towel.
 
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Old Sep 30, 2011 | 07:18 AM
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I got this code and had to have the tranny rebuilt.
 
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Old Dec 7, 2013 | 05:28 PM
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Default Brunnie

Yes could someone help me out. I recently got a 2001 dodge ram with a 3.9L mag. in it. Its a 5 speed truck and i'm geting a p1740 and a stuck in neutral code witch i can't remember what that is. i'm not sure y my truck is getin that code when its a 5 speed. don't have a tc. Also the truck get about 8 different codes in it. 2 are the o2 sensor replaced both of them. Also one is a fan relay code. the truck runs good but when i clear the code's it run's like crap. also when it does start running good it wants to nose dive when giving it gas or lose power. but if u keep giving it gas it will start popping sounds like through the throttle body. If someone could help me would be nice i do have a code reader. Iam just frustrated at it. thought i would ask all ya'll thannk
 

Last edited by brunieo25; Dec 7, 2013 at 05:35 PM. Reason: add more
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