With the exception of Saturns, all transmission filters are in the transmission underneath or inside the pan on the bottom of the transmission.
I own a 1990 GMC Sierra 1500 5.7L V8. My fuel filter is located along the frame rail under the cab on the driver's side of the truck. You might look there for the filter on your 1989 Sierra. It's an inline silver colored canister.
A/C delco
if you have already disconnected the line from the radiator, you have to disconnect it from where it goes into the engine, near the oil filter. It will have a plastic retaining clip that you will need to squeze and the line should come out with a little muscle.
Synchromesh transmisssion fuild is what is recomened. Do not use Atf in those trans!
Left side and below the steering column. The cover has a finger pull, just pull out and down a little.
it should be on the frame rail just below the driver door
Agustin Sierra was born on September 23, 1990.
Agustin Sierra was born on September 23, 1990.
Sierra Noble was born on 1990-02-20.
Sierra Kusterbeck was born on 1990-12-18.
Sierra National Airlines was created in 1990.
Agustín Sierra was born on 1990-09-23.