Where is the Transmission dipstick on a 1989 Pontiac Sunbird 5 speed 2.0 engine?

The 1989 Pontiac Sunbird with a 5-speed manual transmission does not have a traditional transmission dipstick like automatic transmissions. Instead, to check the Transmission Fluid level, you need to locate the fill plug on the side of the transmission case. It's typically a hex or square plug that can be removed to check the fluid level; the fluid should be at the level of the fill hole. If necessary, you can add fluid through this hole using a pump or funnel.