check fuses
check for 12v supply at transmission-- wire @ 12 oclock on trans connector
Column shift? at the bottom of the steering column near the firewall Floor shift? Either under shift console or at side of transmission
Why wont my 1994 Ford Taurus GL 6cyl Auto transmission shift into third(high) gear. It will only reach speeds of about 35mph +/-
Most shift solenoids are inside the transmission.
when my car wouldn't shift it was because the cat.converter was cloged
4t60e
The shift solenoid on your 1994 Chevrolet Blazer, is located on the top of the transmission. The solenoid will be labeled.
because it was made by General Motors. but also because your transmission is about to go. you should do a transmission flush. if that doesn't work you could always drive the truck through a mine field that might make it shift into 3rd or 4th more frequently..
On the top of the transmission, with a harness headed to it, should be about 3 bolts to take off, then valve comes off... shift solenoids are in there
I would look on the transmission by the gear shift linkage.
If it won't shift in all the gears.
Dexron III should be a safe bet.
check the fuses.