Schwind
split loyalties
I think my 4L80E transmission is screwed. A friend of mine needed to move some stuff and asked to barrow my truck and trailer. I was hesitant to do it but I did. I explained to him how the TCC lock up mod worked more than once. With the emphasis on that it needed to be turned off when he got below 45 MPH. He used it over the weekend and when he returned it, he commented that he thought the passenger’s front brake was going bad or out because it was dragging pretty bad. I didn’t think much about it, it was dark out and about 3*. Went out to day unhooked the trailer and started the truck. I let it warm up and proceeded to drive it. Sure enough it felt like the passenger’s front brake was dragging bad metal to metal drag. I drove it about 10 miles myself this way. He had put about 100 miles on it.
After driving it awhile I looked down and realized the TCC lock up was engaged, turned it off and no more drag. Truck shifted fine for awhile then it started dropping out of 3rd. RPM’s up to 2700 at 55 MPH. Parked the truck at the job site and when I was ready to leave got in the truck and left. Then it began going in to limp mode. It will shift from 1st to 2nd and then to 3rd and then drop back to 2nd . What do ya’ll think the damage is? Are the clutches/bands fried or is the torque converter shot? Once I got home I let the truck sit for awhile and went back out and drove it again. Shifted fine but early. Normally it shifts at 15 MPH then about 25 MPH then around 35 MPH and then somewhere between 45 and 50. First shift was about 12 then 23, 32 and then about 45.
Once I got through at the store, on the way home it fell into limp mode again. It tried to shift into 3rd but fell out again. I shut the truck off and started it again and it shifted but shifted early again.
I check the fluid and it is red and doesn’t smell burnt. It was about a pint low so I filled it to the full hot line. I took it around the block and the shift point seem to be better but it still dropped out of 3rd . It is not throwing and codes, well at least the SES light is not coming on.
What do ya’ll think I should do any advice? I really don’t have the money for a new transmission right now, being so close to Christmas and all. Any suggestion that might get me through the holidays? Has anyone else created their own problem this way that might have a solution?
Sorry for such along post.
After driving it awhile I looked down and realized the TCC lock up was engaged, turned it off and no more drag. Truck shifted fine for awhile then it started dropping out of 3rd. RPM’s up to 2700 at 55 MPH. Parked the truck at the job site and when I was ready to leave got in the truck and left. Then it began going in to limp mode. It will shift from 1st to 2nd and then to 3rd and then drop back to 2nd . What do ya’ll think the damage is? Are the clutches/bands fried or is the torque converter shot? Once I got home I let the truck sit for awhile and went back out and drove it again. Shifted fine but early. Normally it shifts at 15 MPH then about 25 MPH then around 35 MPH and then somewhere between 45 and 50. First shift was about 12 then 23, 32 and then about 45.
Once I got through at the store, on the way home it fell into limp mode again. It tried to shift into 3rd but fell out again. I shut the truck off and started it again and it shifted but shifted early again.
I check the fluid and it is red and doesn’t smell burnt. It was about a pint low so I filled it to the full hot line. I took it around the block and the shift point seem to be better but it still dropped out of 3rd . It is not throwing and codes, well at least the SES light is not coming on.
What do ya’ll think I should do any advice? I really don’t have the money for a new transmission right now, being so close to Christmas and all. Any suggestion that might get me through the holidays? Has anyone else created their own problem this way that might have a solution?
Sorry for such along post.