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Tranmission Control Solenoid

The OBDII says TCS "A" circuit

Tranmission Control Solenoid

Postby troyminchew [OP] » Jun 27 2010, 6:09am

I have the part, but the truck drives fine. The engine light is still on. Its a 2001 Chevy Silverado 2WD 5.3L V8 90,000 miles. Is it any easy fix and Is the Soleniod in the oil pan or outside. Its a 16 bolt oil pan. I know a little about the problem, but I don't knwo how to find or change the part. Any Help would be greatly appreciated. Thank you.
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Re: Tranmission Control Solenoid

Postby lzn197 » Oct 22 2010, 2:47pm

The TCC solenoid is inside the transmission attached to the valve body.
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Re: Tranmission Control Solenoid

Postby vandelden » Dec 05 2010, 6:49pm

You should get access from underneath after removing the transmission pan. There are two(2) control solenoids as follows:

1. 3-2 Control Solenoid - located underneath upfront driver side.
Check for resistance to measure between 9-14 ohms min.

2. Pressure Control Solenoid - located middle next to the pressure switch
assembly..
Check for resistance 3.5 - 4.6 ohms min.
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Re: Tranmission Control Solenoid

Postby gmctruckguy » Dec 08 2010, 8:48am

I'm guessing your talking about the tcc solenoid, torque converter clutch solenoid. If so it is the one nearest the converter housing towards the front of the transmission.
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Re: Tranmission Control Solenoid

Postby vandelden » Dec 08 2010, 2:57pm

Yes, the TCC is upfront passenger side and it's vertical. The 3-2 Control Solenoid is upfront driver side and sits horizontial.
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Re: Tranmission Control Solenoid

Postby katjar503 » Dec 10 2010, 4:25am

You should change 3 sol when you are in there. The rectangle one that pushes up into the pump (tcc on/off solenoid) Also the round one right below it (pwm tcc solenoid) For safety and reliability change epc (pressure control) pass side middle of vb.
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Re: Tranmission Control Solenoid

Postby wildstreak » Feb 15 2012, 3:25am

I am having problems with my 2002 Z71's shift patterns. It began to lose the gears one at a time, I was told that it was the tcc solenloid. I have 1st and 2nd left as of now, and i have to let off the gas to get into second at around 40 kph.
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