i have a 01 , 8.1 w/4l80e 4x4. 1/4milion + miles. 2nd gear quit yesterday. No cel, used scan tool on live data and watched shift indication. Thats ok. checked 1-2 and 3-4 shift solenoids for activation. they appear to be working electrically b/c I can hear the solenoids working. Any other clues to what this might be.
4l89e
- Thread starter clevor
- Start date
If you lose the sprag, you lose second gear. You can check the pan, but if it failed in a manner it didn't drop anything, you may not see stuff. I can't think of anything else that makes only second, but I'm a complete noob when it comes to transmission internals.
Here's the chart for what clutches are active in what range and gear. https://www.theturboforums.com/attachments/4l80e-clutch-application-chart-pdf.659522/
Here's the chart for what clutches are active in what range and gear. https://www.theturboforums.com/attachments/4l80e-clutch-application-chart-pdf.659522/
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