Where does the transmission fluid go in your 1988 Chevy Suburban with a 454?

The 1988 Chevy Suburban with a 454 engine likely has a TH400 (three-speed automatic) or a TH700R4 (four-speed automatic) transmission. The location of the transmission fluid dipstick and fill point varies slightly depending on which transmission you have, but it's generally in a similar area:

* Usually on the passenger side of the transmission. Look for a dipstick with a handle extending down from the transmission itself. It's often near the back of the transmission, but not always.

* Sometimes it's a separate tube. Some configurations might have a fill tube that isn't directly connected to the dipstick.

* Check your owner's manual: The best place to find the exact location is your owner's manual. It will show you a diagram of the transmission and point out where the dipstick and fill points are located.

If you can't find the dipstick, don't try to randomly add fluid. Incorrectly adding transmission fluid can cause serious damage. It's best to consult a repair manual specific to your vehicle's year and transmission type (TH400 or TH700R4) or take it to a mechanic. Finding your transmission type definitively might require looking at the transmission itself for a casting number.