CUSTOMER STATES WHEN ENGINE GOES INTO V-4 MODE SHUFFLING SOUND IS HEARD REROAD TESTED AND HEARD SHFFLING SOUND--UNABLE TO MAE HAPPEN LONG ENOUGH TO DIAGNOSE--CONTACTED TAC SERVICES ASE 8-4141-3YC206--WAS TOLS BY GM TO REPLAE AFM LIFTERS ON PASS BANKS REPLACED AFM LIFTERS AND FOUND #6 AFM LIFTER DOES NOT DISENGAGING WHEN GOIGN INTO V-4 MODE--TEST DROVE AFTER REPL OK. ENGNIE MINOR

C/S THERE IS A CLUNK SOUND HAPPENING WHEN SHFTING FROM REVERSING TO DRIVE... CHECK AND ADVISE 98348 shift truck between gears heard poping noise RAISED truck afn found universal joints poping. truck needs 3 univesral joints . 0 REPLACE ALL 3 UNIVERSAL JOINTS . . TRANS. DEPT

CUSTOMER STATES THERE IS A CUNK NOISE WHN PUT INTO REVERSE TECH VERIFIES CUSTOMERS CNCERN AND FOUND THAT IT WAS COMING ROM REAR OF THE DRIVE SHAFT NEEDS RAR DIRVE SHFT REMOVES AND LBURICATE THE SLIP YOKE $105.00 PLUS TAX SHOP SUPLIES. Front Axle Diagnoiss ll. TRANSFER CASE SERVCE, FRONT & REAR DIFFERENTIAL SVC. $469.85AND TRANSMISSION SERVICE $169.95. NOTE: PRICES DO NOT INCLUDE TAXESOR SHOP SUPPLIES.. DRIVELINE

CUSTMER STATES, GONG ABOUT 45MPH AND HEARD A NOISE EVERYTI MEHTS THE GASOLINE HERE IS A NOISE @ ABOUT 30 TO 40 MPH------ ONLY OCCURS WHEN TRUCK SHIFTS TO V4. DOES NOT HAPPEN BEFORE I T IS IN V8 TECH ROADTESTED VEHICLE (IF ABLE), SCANNED COMPUTER FOR DAA PROBLEMS CODES,, CHECKED FOR RELATED BULLETINS SOFTARE UPDATES,, FOUND NO CODES STORED,, CONTACTED TAC,, CASE # F-2337912655,, HAPPENS HEN VEHICLE ENTERS V4 MODE (AMF),, ADVISE DTO REPLACE EXHAUST MUFLER ASSEMBYL,, PARTS WERE ORDERED FOR THIS CONCERN MUFFLER ASSEMLBY,, SPECIAL ODER 3-5 DAYS. DRIVABLE CONCERN

LUSH TRANSMISSION flush transmission rpelace external filter 12 qts at. RAKE FLUDI FLSH , COOLAT FLUSH &am;p 4WD FLUIDS SERVICED A/C MAKING RATTLING NOISE WHEN ENGAGED . FUSH TRNSMISSION