This is an internal transmission failure the check engine light along with the D4 light flashing and the slipping is telling you this. What happens is the clutches internal in the transmission fail and no longer hold pressure and cause the transmission to fail triggering the check engine and D4 light.
Answers & Comments
Hi Gregory:
This is an internal transmission failure the check engine light along with the D4 light flashing and the slipping is telling you this. What happens is the clutches internal in the transmission fail and no longer hold pressure and cause the transmission to fail triggering the check engine and D4 light.
Hope this helps.