1997 GMC Sonoma Owner's Manual - Page 368

Part C: Periodic Maintenance Inspections Listed below are inspections and services which should be performed at least twice ayear (for instance, each spring and fall). You should letyour GM dealer's service department or other qualified service center do these jobs. Make sure any necessary repairs are completed at once. Proper procedures to perform these services may be found in a GM service manual. See "Serviceand 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 otherconditions which could cause a heat build-up in the floor pan or could let exhaust fumes into the vehicle. See "Engine Exhaust" in the Index. Radiator and Heater Hose Inspection Inspect the hoses and have them replaced if they are cracked, swollen or deteriorated. Inspect all pipes, fittings and clamps; replace as needed. Steering, Suspension and Front Drive Axle Boot and Seal Inspection Throttle Linkage Inspection Inspect the front and rear suspension and steering system for damaged, loose or missing parts, signs of wear or lack of 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 orleakage. Replace seals if necessary. Inspect the throttle linkage for interference or binding, and for damage or missing parts. Replace parts as needed. Replace any cables that have high effort or excessive wear. Do not lubricate accelerator and cruise control cables. 7-58