In first and second it wants to change at high rpms. I keep fluid in the truck even though there is a small leak nothing major. today it would not come out of third gear.
Service the transmission and check the tension spring on the valve body to insure its not broken. Also on the side of the transmission there is a dash pod that is vacuum driven. Insure it works and the vacuum is hooked up. There is a shift cable that runs to the from the trans to the engine to kick down the shift on hard acceleration , this also sets your shift points. The dash pod is also adjustable with a small flat blade screw driver thru the vacuum inlet. If the RPM reeves up and then shifts, it is slipping and in need of rebuild.
SOURCE: 1984 c4 corvette/ trans problem
both modulator and needs serviced when servicing ck for debris in pan
SOURCE: 1997 Suburban 4x4 5.7L Transmission whines until it shifts
You rear planetary set is worn from a restricted cooler.
SOURCE: Trannsmisson Problems
check carefully to make sure it is shifting from 1st to 2nd.... there is a "sun reactor shell" inside the transmission that when broken causes reverse, 2nd and fourth to be lost. it is an extremely common failure.
best way to check.... drive along with the gear shift lever in "2" you should feel one shift as you accelerate. then carefully bump it into "3" or "D" whichever the case may be. another shift should be felt. if you do not feel a shift, you have likely stripped the teeth of that shell. hope this helps..
102 views
Usually answered in minutes!
×