1998 GMC Jimmy Owner's Manual - Page 378

Part C: Periodic Maintenance Inspections Listed below are inspectionsand services which should be performed at least twicea year (for instance, each S spring and fall). You should let your dealer service department or other qualified service center these do jobs. Make sure an.y necessary repairs are completed at once. Proper procedures to perform these servicesmay be found in a service manual. See "Service and Owner Publications" in the Index. Exhaust System Inspection Inspect the complete exhaust 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 floorpan or couldlet exhaust fumes into the vehicle. See "Engine Exhaust" in the Index. Engine Cooling System Inspection Inspect the hoses and have them replaced they are if cracked, swollenor deteriorated. Inspect all pipes, fittings and clamps; replace as needed. Clean the outsidethe of 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 year. a Steering, Suspension and Front Drive Axle Boot and Seal Inspection Inspect the front and rear suspension and steering system for damaged, loose ormissing parts, signs of wear or lackof lubrication. Inspect the power steering lines and hoses for proper hook-up, binding, leaks, cracks, chafing, etc.Clean and then inspect the drive axle boot seals fordamage, tears or leakage. Replace seals if necessary. Throttle System Insp.: ;tion Inspect the throttle system for interference or binding, and for damaged or missing parts. Replace parts as needed. Replace any components that have high effort or excessivewear. Do not lubricate acceleratorand cruise control cables. 7-43