P0700 and P0741 - Chevy HHR Network

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P0700 and P0741

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Old 03-07-2016, 11:32 PM
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P0700 and P0741

Hey everyone, the other day, I was driving my wife's 07 LT 2.2 (129k miles) and the check engine light came on. I scanned it and got:
P0700- Transmission control system mil request
and
P0741- torque converter clutch circuit performance or stuck off code.

I did notice a slight whining in the transmission in 3rd gear with light acceleration, and the transmission doesn't seem to be going into 4th gear. Does anybody know if this could be just a bad TCC solenoid, or am I going to need to overhaul this transmission?? Anybody have these symptoms and codes at all before?
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Old 03-07-2016, 11:33 PM
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Would a bad torque converter clutch solenoid cause the transmission not to shift into 4th gear?
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Old 03-08-2016, 08:21 AM
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YES, that is what 4th gear is.

The description is " torque converter clutch circuit performance or stuck off code", so it could possibly be a electrical thing.
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Old 03-08-2016, 09:31 AM
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It could also be chaffed wires or loose ground wires or TCM connection
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Old 03-08-2016, 05:14 PM
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Originally Posted by donbrew View Post
YES, that is what 4th gear is.
Ya know? That's what I thought, but I am being told differently. I've heard it won't go into 4th with that solenoid bad, but I've also been told that the trans not going into 4th is a bigger problem than just a TCC solenoid.

I guess my plan of attack will be spend the $30 on the solenoid and change that first and see what happens.... worst case scenario, I'll rebuild it for $440, but I'd change out that solenoid either way, so all I'm wasting is time if I do the solenoid job and need to tear it down again
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Old 03-08-2016, 06:09 PM
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$30 for the part, $400 labor. You have to drop the entire cradle. I think R&R cradle is about 10 hours.

Gears 1-3 are inside the gearbox 4th gear is when the torque converter locks and the engine (basically) drives the wheel directly, overdrive.
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Old 03-10-2016, 02:31 AM
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Originally Posted by donbrew View Post
$30 for the part, $400 labor. You have to drop the entire cradle. I think R&R cradle is about 10 hours.

Gears 1-3 are inside the gearbox 4th gear is when the torque converter locks and the engine (basically) drives the wheel directly, overdrive.
Nah! $30 for the part, $0 for the labor.... a day at the shop mother-f'ing Chevy as I tear it down and fix it myself!
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Old 06-13-2018, 05:46 PM
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TCC solenoid

So did the TCC solenoid fix the issue?
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Old 06-13-2018, 05:52 PM
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Welcome to the site, the OP hasn’t been back since 03/21/2016, so I doubt you will get an answer.
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