Before you go tearing up the transmission. Check tp sensor (throttle position sensor). Keep in mind transmissions also have electronic parts that govern shift patterns . Signals sent to the truck's computer from sensors govern when it shifts. I would check sensors and wiring to those sensors first before tinkering with a transmission.
SOURCE: 88 s10 pickup truck will not shift from 3rd gear to overdrive
need more info i had a 1984 chevy half ton and first, second, and third worked fine but lock up didnt work. the problem was there was no vacum at a switch under the hood on the fire wall also your shift linkage could be out of adjustment. try driving down the road and raise up a little on the shifter.
SOURCE: Replace window motor assembly 2001 Chev 1500 extended cab truck
you can order it at some dealer ships . it cost about 150.00 dollars or more.
SOURCE: 99 silverado 1500 shifts hard after its been driven a while
u need to have the system tested for trouble codes, but u most likely have a defective trans 1-2 shift solenoid. to replace this u will need to pull the trans pan off the solenoids are attached to the valve body, also check the trans connector for water or corrosion.
SOURCE: 1991 chevy extended cab 1500 with a 350 it
Possible deposit buildup in the throttle body and specifically the IAC (idle air control chambers).This causes disturbance and your systems ability to control air/fuel mixtures at near idle conditions .Perform service, recomending removal of the IAC valve and cleaning with an O2 safe injection cleaner.3M makes a very good line of products including 3M"do it yourself" fuel system tune up pn#8963.Also verify proper EGR operation and no sticky valve or build up there.....good luck
SOURCE: 1997 Chevy 1500 P/U 4x4 small V8. Transmission shifting issue.
you may be confusing the torque converter clutch engagement with o.d. this trans has a problem with the T.C.C. regulator valve wearing out the valve body bore. this will cause the converter clutch to engage only sometimes or not at all. this will set a P1870 code in the control module. when this code is stored in the controller, ( check engine light may or may not be on), it increases the pressure in the transmission causing the 1-2 shift to be harsh. ask a local tranny shop to scan the vehicle ( most will do this for free) if this is the problem they can either fix your valve body (sonnax parts) or replace it with an upgraded valve body. hope this helps
183 views
Usually answered in minutes!
×