I have a Chevy 3500 box van with a code of PO894 transmission comp. Slip. What does this code mean

Tiny
175RANGER
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  • 2007 CHEVROLET VAN
  • 160,000 MILES
Check engine code
Friday, October 7th, 2011 AT 3:39 PM

3 Replies

Tiny
DAN_K
  • MECHANIC
  • 213 POSTS
The Powertrain Control Module (PCM) is detecting Torque Converter Clutch (TCC) slippage when the Torque Converter Clutch should be engaged.

There are many things that would cause this code to be set. Was that the only code present?
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Friday, October 7th, 2011 AT 4:27 PM
Tiny
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Thank you for your reply yes it was. But there hasnt been any noticable "feeling" like the tranny slipping, smells etc. Other than the engine light coming on will we notice the ttc slipping? Will it have any effect on driving.
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Friday, October 7th, 2011 AT 6:12 PM
Tiny
DAN_K
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It can negatively affect fuel mileage. The TCC in only engaged at higher speeds.
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Friday, October 7th, 2011 AT 6:20 PM

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