LS1TECH - Camaro and Firebird Forum Discussion

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-   -   4l80e won't shift into 4th occasionally (https://ls1tech.com/forums/pcm-diagnostics-tuning/1786884-4l80e-wont-shift-into-4th-occasionally.html)

lmt0705 May 22, 2015 09:35 PM
4l80e won't shift into 4th occasionally
 
Driving normally i never have an issue, if I get on it then go back to driving normal is when i occasionally cant get the car to shift into OD. Its a 2000 transam and computer tuned with hp tuners. the trans still functions normal in whatever gear its in it just wont shift into 4th. that after a few minutes or after I shut it down it will be back to normal again.

joecar May 30, 2015 04:28 PM
Originally Posted by lmt0705 (Post 18814366)
Driving normally i never have an issue, if I get on it then go back to driving normal is when i occasionally cant get the car to shift into OD. Its a 2000 transam and computer tuned with hp tuners. the trans still functions normal in whatever gear its in it just wont shift into 4th. that after a few minutes or after I shut it down it will be back to normal again.
Post tune file.


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