Symptoms
- No upshift
- Stuck in 2nd or 3rd
- Engine RPM disconnects from road speed
The Fix
Diagnostic + Fix
Input speed sensor failure. Replace ISS - check connector pigtail for corrosion too.
Cost: ~$25 + pigtail $15 + 20min labor
Why Same-Day Ship Matters
Customer's truck is in the bay. Code is logged. You quoted the fix. Now you need the part on your bench TOMORROW, not Friday. We ship before 2pm Eastern, free on orders over $40, and the 4L60E catalog has every common solenoid/sensor/kit you need to clear a P0717 code.