P1740?

[stinnett25]

Had this code pop up today and found it with my Smarty. It said "TCC O/D SOL PREFORMANCE". Any help or suggestions?

Just got a converter and valvebody put in on Thrusday. New filter and synthic fluids to boot.

Is it ok to drive until fixed. Buddie told me that my tranny wasnt going into O/D like it should. Due to solinoid failure maybe. Does that sound right to anybody? Ive got a TS Shift Master coming and will be put in on Friday. I am getting a lot of gear hunting in 2nd but everything else is just fine.

Help me out guys. May be beer involved.

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06 BIG HORN 4x4

[stinnett25]

Anybody?

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06 BIG HORN 4x4

[stinnett25]

Well i did talk to Wally and he told me that it, more than likely, is due to my lock up being so easy. The ECM is not seeing the 500 to 700 rpm drop instead it is only getting a 200 to 400 drop in rpm's. Therefore it thinks its not in lock up.

Makes sense to me i just hope i dont see it all the time thats all.

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06 BIG HORN 4x4

[JacktheBear3]

Just a little support info....

Code P1740-Torque converter clutch did not lock up when the PCM sent the command. Enabling conditions: No engine or transmissions codes are present, vehicle speed was under 70 MPH, TPS was under 33% open. When the PCM commanded the torque converter to lock, no change was detected in engine speed. Blocking action: This code can block the following monitors: none.

Testing: Check torque converter solenoid for proper operation.

P1740 TCC O/D SOL PERFORMANCE (GAS)

Theory of Operation
The Torque Converter Clutch (TCC) Solenoid is used to engage the TCC which improves fuel economy.

When Monitored
The Torque Convertor Clutch (TCC) and Overdrive Clutch (OD) will be tested each time the PCM requests TCC engagement in 3rd gear and OD.

Set Condition
The DTC will set if the expected RPM drop is not achieved while attempting to engage TCC or OD. This indicates a malfunctioning torque convertor or overdrive clutch.

Possible Causes

* ENGINE DTCS PRESENT
* TRANSMISSION DTCS PRESENT
* TRANSMISSION TEMPERATURE TOO COLD
* OIL PAN CONTAINS EXCESSIVE DEBRIS
* 3-4 SHIFT SOLENOID
* SHAFT OR SEAL DAMAGE
* TCC SOLENOID
* TORQUE CONVERTER

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2002 24V, 2500 Quad Cab, Dark Silver, We Bit O Lift, Plain Jane, Comp (drag), BDRAD, Smarty Stack, F1 Mach 7.?, The Girlz are T61 & S400, PDR Stg III Head w/Rings top & bottom, HTS/FTE FULL billet Auto, SS Single Converter, Optix Gauges ( all high #'s), Detroit Locker, Custom 6" Miters, and plenty O junk in the Trunk...

[stinnett25]

I remember seeing "DTCS" on my Smarty when i cleared the code.

You still think the problem is what we talked about?

And if so, do you think i will keep having to clear this code?

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06 BIG HORN 4x4

[JacktheBear3]

All you can do is check them after driving, if there are other codes you need to document them and give me a call.

W

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2002 24V, 2500 Quad Cab, Dark Silver, We Bit O Lift, Plain Jane, Comp (drag), BDRAD, Smarty Stack, F1 Mach 7.?, The Girlz are T61 & S400, PDR Stg III Head w/Rings top & bottom, HTS/FTE FULL billet Auto, SS Single Converter, Optix Gauges ( all high #'s), Detroit Locker, Custom 6" Miters, and plenty O junk in the Trunk...

[stinnett25]

Thats my plan. Thanks for all your help.

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06 BIG HORN 4x4

[stinnett25]

Had the code cleared out and it popped up yet again today on my way to work. I was in 3rd gear, crusin about 40mph.

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06 BIG HORN 4x4