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2004 Silverado 3500


royg

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Posted

The code that comes out is a P0984 transmission component slipping. From viewing the snapshots that i took, looks like when in drive 4 the TCC slip speed is above 120 rpm alot. When the PCM tries to pulse the TCC PWM solenoid to bring down the slip it jsut doesn't go down, goes up to the 300's rpm. The TCC solenoid duty cycle is at 98% and the TCC slip speed does not correct. This is a new trans that was just put in and has 11,000 miles on it.

 

 

Internal component failure?

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