1998 Chevrolet Express Van Owner's Manual - Page 258

Checking Transmission Fluid Cold off Then, without shutting the engine, follow these steps: A cold check is made after the vehicle has been sitting for eighthours or more with the engine off and is used only as a reference. Let the engine run at idle for five minutes if outside temperatures are 50°F ( 10°C) or more. If it's colder than 50°F (lO"C), you may have to idle the engine longer. Should the fluid level be low during a cold check, you must perform a hot check before adding fluid. This will give you a more accurate reading of the fluid level. Checking the Fluid Hot Cold or 0 Park your vehicle on a level place. Keep the engine running. With the parking brake applied, place the shift lever in PARK (P). With your foot onthe brake pedal, move the shift lever through each gear range, pausing for about three seconds in each range. Then, position the shift lever in PARK (P). Let the engine run at idle for three minutes or more. ,, . I 0 0 1. The transmission dipstick has a red handle and is located near thecenter of the engine compartment. Flip the handle up and then pull the dipstick out and wipe it with a clean rag or paper towel. 2. Push it back in all the way, wait three seconds and then pull it back out again. 0