Where is the transmission vacuum modulator 1986 Chevy Suburban?

On a 1986 Chevy Suburban, the transmission vacuum modulator is typically located on the passenger side of the transmission. It's a small, canister-shaped device with a vacuum line connected to it. However, the exact location can vary slightly depending on the specific transmission type (TH350, TH400, etc.) and whether there are any aftermarket modifications.

To be sure, you'll need to:

1. Consult a repair manual specific to your 1986 Chevy Suburban. This will provide diagrams and precise locations based on your vehicle's options.

2. Look closely along the passenger side of the transmission. It's usually near the top or slightly towards the rear of the transmission. The vacuum line will be a clue.

3. If possible, get under the vehicle safely to get a better view.

Be careful when inspecting and working around the transmission and its components. Hot surfaces and moving parts present potential hazards.