2000 Chevrolet 3500 Pickup Q&A
2000 Chevrolet 3500 Pickup Question: Hello to you, I own a 2000 C3500 truck. Is it common for valve body to wear out?
Yes, my truck is a 2000 year, Chevrolet, C3500 Crew Cab with long truck bed. Anyway, I was wondering how common it is for the valve body to wear out on the 4l80E transmission? Reason is, my truck shifts great at the start of the day but as I drive it up to operating temperature or approxiamtely 30 minutes my truck will shoft out of fourth gear/overdrive into third gear and remain in third gear until I shut of the truck say for about 10 seconds and will start shifting fine until it does it all over again. What do you think is the cause a bad or worn out valve body or torque convertor? I don't know and don't want to shell out money unnecessarily. I also, do not get any check engine lights. I have taken it tom two transmission places and the first palce AMMCO told me I got a code, P1870 "Transmission component slipping" and I need a full rebuild for $2000.00 which I don't think I do becuase the tranny shifts too good when cold, like brand new until it gets up to temperature and the second transmission guy and independent transmission specialist told me that I need to get the valve body reamed out to install a updated Actuator Feed Limit Valve and change out the force motor or EPC, Pressure Control Solenoid and change out some seals inside the valve body to fix it. One more thing, I do get more of a harsh shift from 1 to 2 gear when the transmission kicks out of fourth gear or overdrive. Suggestions would be appreciated and what direction I should go in. If it helps I have found a brand new valve body with all the solenoids valves etc and transmission filter and pan gaskets etc. for $224.95 that I was thinking about purchasing and replacing the valve body in my truck to possibly solve this issue. What is your thoughts? Thanks, very much, Bob - Chevrolet1
this gm's weak link. these trans are good for approx 100k miles only. what makes them better is reg services and only drive veh in over drive while on freeway. - globalhelper