i have a chevy 3500 box van with a code of PO894 transmission comp. slip. what does this code mean

160,000 MILES
Avatar
175RANGER
  • MEMBER
  • 2 POSTS
check engine code
Oct 7, 2011 at 8:39 AM
Avatar
DAN_K
  • ✓Experienced 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?
Oct 7, 2011 at 9:27 AM
Avatar
175RANGER
  • MEMBER
  • 2 POSTS
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.
Oct 7, 2011 at 11:12 AM
Avatar
DAN_K
  • ✓Experienced Mechanic
  • 213 POSTS
It can negatively affect fuel mileage. The TCC in only engaged at higher speeds.
Oct 7, 2011 at 11:20 AM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Frequently Asked Problems for This Vehicle