How do you change the oil in the brake booster on a 2004 Isuzu NPR Diesel.
Friday, June 3rd, 2011 AT 8:38 PM
The brake booster doesn't contain oil-
Friday, June 3rd, 2011 AT 8:44 PM
According to our owners manual the oil is to be changed at 25,000 miles. The mechanic that was doing it has left town and the new mechanic is unfamiliar with it. It calls for Dextron III and is located in the cab near the steering column. This is a diesel truck.