Reply to thread

Message: <blockquote data-quote="Harry Dawg" data-source="post: 25216" data-attributes="member: 13234">Not to make you paranoid, but the first symptom of my 4L60E nearing the end was a hard 1>2 or 2>1 shift coming to stop.It was nothing crazy, just enough to notice it. This went on for like 2 years.Then there was one instance where I was making a long drive on a hot summer day. Near the end of the trip I had a shift where it about knocked the head unit insert out of the dash.It only did it once, but I knew I was in trouble. It lasted about 3-4 months before it gave up the ghost on a 4wheeling trip.It was a 1>2 shift, and instead of shifting it just clanged... The sound was like when a U-Joint breaks. I immediately turned around and headed home. Interestingly enough, it drove fine back to the house. It wasn't until the next morning when I left for work where it would just grind instead of shifting.Makes me wonder what actually causes this phenomenon? How can an electronically controlled transmission have intermittent shifting failure?As best I can figure, it may be an issue with the servo or the clutch packs have just enough material to give a couple more shifts after a major failure.All of this being said- maybe if I had serviced the transmission when I first started noticing issues, the outcome would have been different.Best of luck... Hopefully your tale ends with "I serviced it and it never gave me issues again"</blockquote>