Transmission Lag? Doesn't want to upshift
Trans seems like it doesn't want to shift? Wont upshift until about 2300rpms in any gear at any throttle position. The speed that the owners manual say it should upshift at is correct +/- a mph or two but the rpms seem high. I dont recall it ever doing this. Just started doing it a week or two ago. Replaced the hubs with brand new warn hubs. Can't smell any brakes burning up, so I cant think what would be causing the drag on the truck(it has no balls left). Runs at 65mph on the highway with cruise on at 1900rpm or so in 4th and with between 4 to 6 psi of boost. Any ideas anyone? Boost is normal 20psi at full throttle, trans tems are fine and all that, just lags to upshift... I'm dumbfounded.