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Still P0894 (transmission component slipping) after rebuild and a refurbished

laborde2122
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laborde2122 New Member

laborde2122

Posted
Posted (edited)

I blew a tranny line on the highway about 4 months ago in my Chevy 2006 Silverado 5.3l.  I decided to have it rebuilt with a 3 year warranty.
 

After I got it back, it would drive fine then shift rough after I came down from highway speeds. When I turn off the truck and restart it, it shifts fine. After I get back up to higher speeds and come down, it acts up and shifts rough again.  Eventually it threw the P0894 code. The code is for transmission component slipping. I took it back and he said it was a sensor or something. Next day, hard shifting and code again. He said it must be something else with the tranny and fixed fixed that. (Sorry I don’t remember both of these repairs, but I can find out). Couple days later, same code and rough shifting. He replaced the tranny this time with a manufacturers refurbished. Next day, same code and same rough shifting after highway speeds, but in addition to this, a message appeared saying Transmission Hot. 
 

Thoughts? Haha. I’m lost and I think my transmission guy is as well at this point. 

Edited by laborde2122
sefiroxx Enthusiast

sefiroxx

Posted
Posted

Be sure to post code description when posting codes, no one has them memorized.

The computer controls the timing of gear shift based on input from rpm, tps (desired speed), road speed, and current gear. The code is generated when road speed and rpm vary from each other when gear and tps are stable. If one of the sensors are going, then gear shifts would be off.

Use a scanner to monitor the sensors and see what is different than from normal.

As for heat, try pulling and connecting the wire harness.

davester Senior Enthusiast

davester

Posted
Posted

As well, check that the transmission cooler lines are getting warm/hot.  If they aren't (after driving around for sometime), then the cooler is plugged.

  • 4 years later...
Eder New Member

Eder

Posted
Posted
On 12/28/2019 at 6:43 AM, laborde2122 said:

Thank you. The transmission guy is sending it to a local dealer to get checked out on his dime.

Can u give us an update I'm having the issues. Thanks 

 

davester Senior Enthusiast

davester

Posted
Posted

 

11 hours ago, Eder said:

Can u give us an update I'm having the issues. Thanks 

 

...5 year old thread and laborde hasn't logged onto the site since then.  You aren't going to get a response from that user.

 

Take your vehicle in to a transmission shop and have them check it out.

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