GM Service Manual Online
For 1990-2009 cars only

Listed below are inspections and services which should be performed at least twice a year (for instance, each spring and fall). A dealer's service department or qualified service center should perform these inspections. All repairs should be completed at once.

Exhaust System Inspection

Inspect the complete system. Inspect the body near the exhaust system. Look for broken, damaged, missing or out-of-position parts as well as open seams, holes, loose connections or other conditions which could cause a heat build-up in the floor pan or could let exhaust fumes into the vehicle. Service the vehicle as necessary.

Engine Cooling System Inspection

Inspect the hoses and replace them if they are cracked, swollen or deteriorated. Inspect all pipes, fittings and clamps; replace as needed. Clean the outside of the radiator and air conditioning condenser. To help ensure proper operation, a pressure test of the cooling system and pressure cap is recommended at least once per year. If there is a loss of coolant, refer to Loss of Coolant in Engine Cooling.

Brake System Inspection

Inspect the complete system.

Inspect the brake lines and the hoses for proper hookup, binding, leaks, cracks, chafing, etc. Inspect the disc brake pads for wear and rotors for surface condition. Inspect other brake parts, including the calipers, the parking brake, etc. The brakes may need to be inspected more often if driving habits or conditions result in frequent braking.