1996 GMC Jimmy Owner's Manual - Page 342

Short Trip/City Maintenance Schedule 100,000 Miles (166 000 km) 0 Drain, flush and refill cooling system (or every 60 months since last service, whichever occurs first). See "Engine Coolant" in the Index for what to use. Inspect hoses. Clean radiator, condenser, pressure cap and neck. Pressure test cooling system and pressure cap. An. Emission Control Service.-f In hilly or mountainous terrain. - When doing frequent trailer towing. - Uses such as found in taxi, police or delivery service. - 0Inspect spark plug wires. A H Ewission Control Service. 0Inspect Positive Crankcase Ventilation ( P c v ) valve. AI?Er~~issior.~ Cormol Sowic*e. 0Replace spark plugs. An Enlission Control Service. 0Change automatic transmission fluid and filter if the vehicle is mainly driven under one or more of these conditions: - In heavy city traffic where the outside temperature regularly reaches 90"F (32°C) or higher. DATE ACTUAL MILEAGE SERVICED B Y 7-31