1993 GMC Suburban Owner's Manual - Page 301

. . PO232 1 To replacethewindshieldwiperbladeinsert,liftthewiperarmandrotatethe of theinsert bladeuntilitisfacingawayfromthewindshield.Unlatchtheend fromtheholdingclips.Removetheinsertandslideanewone in place. Makesuretheblade is secured in the clips. Air Conditioning Every now and then have your dealership check your air conditioning system to besure it hasnot lost anycoolingability. I you think.the systemis not f workingproperly,haveyourdealershipcheck it outas soon aspossible. Theairconditioning will notworkwhenthetemperature is below 40°F (4°C). FhId Leak Check Afterthevehiclehasbeenparkedforawhile,inspectthesurfaceunderthe vehicleforwater,oil,fuelorotherfluids.Waterdrippingfromtheair If younoticefuelleaks conditioningsystemafter it hasbeenusedisnormal. orfumes,thecausesshouldbefoundandcorrectedatonce. ubrkatbn. Accelerator Control System Yourmaintenanceschedule will tell you h,ow oftentheacceleratorlinkage pivotpointsmustbelubricated.See,"RecommendedFluidsandLubricants"in the Index- for the proper fubricant to use. Acceleratorcablesandcruisecontrolcablesshouldnotbelubricated.Any to pull should be replaced. cables that are. worn or are hard 6-35