LS7 Corvette Mechanical Repair Specs (PDF) - Bakes Online

Print Preview Version 8.0 PubTeX output 2006.06.15:1036 File: C:\DOCUME~1\PCOMPO~1.IGS\LOCALS~1\Temp\.aptcache\2006LS7/tfa01804.dvi User: PComposer Page: 472006 Y Car GMX245 Corvette7.0L (LS7) Engine MechanicalStep Action Yes No56789Inspect the drive belt tensioner for proper operation. Refer to DriveBelt Tensioner Diagnosis .Did you find and correct the condition? Go to Step 9 Go to Step 6Check for the correct length drive belt.Did you find and correct the condition? Go to Step 9 Go to Step 7Inspect for misaligned pulley.Did you find and correct the condition? Go to Step 9 Go to Step 8Inspect for an incorrect size pulley.Did you find and correct the condition? Go to Step 9 —1. Install the drive belts. Refer to Drive Belt Replacement -Accessory or Drive Belt Replacement - Air Conditioning .2. Clear any codes.3. Run the engine in order to verify the repair.Does the squealing noise still exist? — System OKDiagnostic Information and Procedures1399804Drive Belt Whine DiagnosisDrive Belt:Whine Diagnosis:Engine Mechanical - 4.8L, 5.3L, and 6.0LDiagnostic AidsThe drive belts will not cause the whine.If the whine is intermittent, verify that it is not the accessory drive components by varying their loads, making sure they areoperating to their maximum capacity. An overcharged air conditioning (A/C) system, a power steering system restriction, orthe incorrect fluid, or a failing generator are suggested items to inspect.Test DescriptionThe numbers below refer to the steps in the diagnostic table.3. This test is to verify that the whine is being caused by the accessory drive components. Remove the drive beltsand operate the engine for a few second, this will verify if the whining noise is related to the accessory drive component.With the drive belts removed the water pump will not operate and the engine may overheat. Also diagnostic trouble codes(DTCs) may set when the engine is operated with the drive belts removed.4. The inspection should include checking the drive belt tensioner and the drive belt idler pulley bearings. The drivebelts may have to be installed and the accessory drive components operated separately by varying their loads. Refer to thesuspected accessory drive component for the proper removal and installation procedure.Step Action Yes NoNotice: Refer to Belt Dressing Notice in Cautions and Notices.DEFINITION: A high pitched continuous noise that may be caused by an accessory drive component failed bearing.1Did you review the Symptoms – Engine Mechanical diagnosticinformation, and perform the necessary inspections? Go to Step 2Go to Symptoms -Engine Mechanical2Verify that there is a whining noise.Does the engine make the whining noise? Go to Step 3 Go to Diagnostic Aids47 of 272