Technical Service Bulletins (TSBs) for the 1999 Savana are official communications between GMC & their dealerships that describe processes for troubleshooting or fixing certain common problems. All vehicle manufacturers are required by U.S. law to make their TSBs available to the public.

    SUSPENSION

    • TSB #020307002

      Date Announced:
      MAR 01, 2005
      NHTSA ID:
      #10014945

      REVISED FRONT CASTER AND CAMBER ADJUSTMENT PROCEDURE. ORIGINAL NOT YET RECEIVED. *TT Read More »

    SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES

    • TSB #PIT-3665-D

      Date Announced:
      MAY 11, 2016
      NHTSA ID:
      #10078876

      THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THAT THE HYDRO-BOOST IS NOT SERVICEABLE AND WILL NEED TO BE REPLACED IF THE BRAKE PEDAL MOVES OR APPLIES ON ITS OWN AT A FULL TURN. Read More »

    SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT

    • TSB #3521

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10016711

      ANTI-LOCK BRAKING SYSTEM (ABS) LIGHT ON SPEEDOMETER MAY BE ERRATIC. DIAGNOSTIC TROUBLE CODE (DTC) C0055 C0235 C0236 OR C0237 STORED IN THE EBCM. *TT 1998-2008 ALL CHEVROLET, GMC, BUICK, AND OLDSMOBILE MID-SIZED TRUCKS AND UTILITIES. Read More »

    SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT

    • TSB #3521

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10016711

      ANTI-LOCK BRAKING SYSTEM (ABS) LIGHT ON SPEEDOMETER MAY BE ERRATIC. DIAGNOSTIC TROUBLE CODE (DTC) C0055 C0235 C0236 OR C0237 STORED IN THE EBCM. *TT 1998-2008 ALL CHEVROLET, GMC, BUICK, AND OLDSMOBILE MID-SIZED TRUCKS AND UTILITIES. Read More »

    ENGINE AND ENGINE COOLING

    • TSB #PIP-4138K

      Date Announced:
      JAN 01, 2011
      NHTSA ID:
      #10037933

      GM: THE SERVICE ENGINE SOON LIGHT IS ON, THERE IS ALSO A MISFIRE OR ENGINE NOISE. THERE ARE MULTIPLE POSSIBLE CAUSES. *RM Read More »

    • TSB #01225

      Date Announced:
      JAN 01, 2004
      NHTSA ID:
      #10007717

      ENGINE COOLANT LEAK AT INTAKE GASKET. * MJ Read More »

    • TSB #3232

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10011692

      MISFIRE AT IDLE COLD AND POSSIBLE P0171 AND OR P0174. *EH Read More »

    ENGINE AND ENGINE COOLING:ENGINE

    • TSB #040604004

      Date Announced:
      JAN 01, 2004
      NHTSA ID:
      #10011121

      REVISED DIAGNOSTIC TROUBLE CODE P1217. *TT Read More »

    • TSB #030601024

      Date Announced:
      AUG 01, 2003
      NHTSA ID:
      #10004371

      RATTLE NOISE IN ENGINE. *TT Read More »

    • TSB #111201

      Date Announced:
      DEC 11, 2001
      NHTSA ID:
      #629613

      ADDRESSING CUSTOMERS COMMENTS ABOUT ENGINE OIL COOLER LINES LEAKING. *TT Read More »

    • TSB #3081

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10010375

      SERVICE ENGINE SOON LIGHT AND P0300 WHEN TOWING, CRUISING UPHILL OR ON HARD ACCELERATION. *TT Read More »

    • TSB #3232

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10014870

      1999 - 2005 GEN II COLD ENGINE MISFIRE AT IDLE WITH POSSIBLE P0171 AND/OR P0174. *TT Read More »

    • TSB #3691B

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10019426

      GENERATION III V8 ENGINE PISTON REPAIRS. *TT Read More »

    ENGINE AND ENGINE COOLING:ENGINE:GASOLINE

    • TSB #010605003

      Date Announced:
      JAN 01, 2004
      NHTSA ID:
      #620827

      VIBRATION OR RATTLE-TYPE NOISE COMING FROM THE EXHAUST SYSTEM AT IDLE WITH ENGINE RPMS BETWEEN 613 AND 712. *TT THIS BULLETIN REPLACED 01-06-05-003 DATED 07/01/2001. *TT Read More »

    ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

    • TSB #311001

      Date Announced:
      OCT 31, 2001
      NHTSA ID:
      #628070

      SOME VEHICLES MAY EXHIBIT AN EXHAUST NOISE, RATTLE NOISE AT 550 RPM. *TT Read More »

    • TSB #170801

      Date Announced:
      AUG 17, 2001
      NHTSA ID:
      #625331

      VEHICLES MAY EXPERIENCE AN EXHAUST SYSTEM NOISE. *JG Read More »

    FUEL SYSTEM, OTHER

    • TSB #3325

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10017191

      SUPPLEMENT TO BULLETIN 99-06-04-047A FOR FUEL SYSTEM CLEANING. *TT Read More »

    FUEL SYSTEM, OTHER:FUEL INJECTION SYSTEM

    • TSB #01349A

      Date Announced:
      NOV 18, 2003
      NHTSA ID:
      #10004135

      6.5L L49 L56 L57 L65 DIESEL ENGINE REQUIRING FUEL INJECTION PUMP REPLACEMENT. MODELS P32/P42 1994-1999 INCLUDED. *TT Read More »

    POWER TRAIN

    • TSB #01599

      Date Announced:
      JAN 01, 2004
      NHTSA ID:
      #10007237

      4L60E, 4L65E FORWARD AND LOW REVERSE WAVED STEEL CLUTCH PLATE APPEARANCE CHANGE. *TT Read More »

    • TSB #02086

      Date Announced:
      JAN 01, 2004
      NHTSA ID:
      #10007782

      4L60E, 4L65E INTERMITTENT NEUTRAL FROM A STOP OR STEADY SPEED. *TT Read More »

    • TSB #010730002C

      Date Announced:
      AUG 01, 2003
      NHTSA ID:
      #10004354

      MALFUNCTION INDICATOR LAMP (MIL) IS ON; THE TRANSMISSION IS STUCK IN THIRD GEAR; AND / OR THE INSTRUMENT CLUSTER IS INOPERATIVE. *TT Read More »

    • TSB #990730016A

      Date Announced:
      OCT 01, 2002
      NHTSA ID:
      #10007838

      DIAGNOSTIC INFORMATION FOR INTERMITTENT TRANSMISSION DOWNSHIFT, SLIP, BUSY/CYCLING TCC OR NOISY COOLING FAN. *TT Read More »

    • TSB #3002

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10008802

      4L60E/4L65E INTERMITTENT NEUTRAL CONDITION WHILE ACCELERATING FROM A STOP OR WHILE DRIVING. *TT 1999-2006 GM CARS, LIGHT DUTY TRUCKS AND UTILITIES. *TT Read More »

    • TSB #3276

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10013496

      4L80E OUTPUT CARRIER THRUST WASHER CHANGES. *TT Read More »

    • TSB #00773

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10017190

      4L60E, 4L65E REPLACEMENT VALVE BODY GASKETS DOES NOT SEEM TO FIT. *TT Read More »

    POWER TRAIN:AUTOMATIC TRANSMISSION

    • TSB #010730038B

      Date Announced:
      OCT 01, 2005
      NHTSA ID:
      #10005162

      THE SERVICE ENGINE SOON LAMP IS ILLUMINATED, NO 3RD AND 4TH GEAR, THE TRANSMISSION DOES NOT SHIFT CORRECTLY, THE TRANSMISSION FEELS LIKE IT SHIFTS TO NEUTRAL OR A LOSS OF DRIVE OCCURS. *TT Read More »

    • TSB #030730056

      Date Announced:
      NOV 01, 2003
      NHTSA ID:
      #10005566

      4L60-E AUTOMATIC TRANSMISSION OIL PUMP FIRST AND SECOND DESIGN IDENTIFICATION. *TT Read More »

    • TSB #010730038

      Date Announced:
      DEC 01, 2001
      NHTSA ID:
      #628934

      SOME CUSTOMERS MAY COMMENT THAT THE SERVICE ENGINE SOON LAMP IS ILLUMINATED, NO 3RD AND 4TH GEAR, THE TRANSMISSION DOES NOT SHIFT CORRECTLY, THE TRANSMISSION FEELS LIKE IT SHIFTS TO NEUTRAL OR A LOSS OF DRIVE OCCURS. Read More »

    • TSB #3259C

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10005514

      4L80E, 4L85E WHINE NOISE IN FIRST AND SECOND GEAR. *TT Read More »

    POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)

    • TSB #01404

      Date Announced:
      NOV 18, 2003
      NHTSA ID:
      #10004208

      POWERTRAIN CONTROL MODULE (PCM) WILL NOT FIT IN NEW TRAY PER BULLETIN 02-06-04-020A. *TT Read More »

    POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT

    • TSB #020730024A

      Date Announced:
      AUG 01, 2005
      NHTSA ID:
      #634999

      DIAGNOSIS OF CRACKED OR BROKEN TRANSMISSION CASE. *TT 2006 AND PRIOR CARS AND LIGHT DUTY TRUCKS. *TT Read More »

    POWER TRAIN:AXLE ASSEMBLY

    • TSB #3001

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10008872

      THE SERVICE INFORMATION AND OWNERS MANUAL DO NOT SHOW A SERVICE INTERVAL FOR THE 8.6, 9.5, 9.75, 10.5, AND 11.5 INCH REAR AXLES WITH OR WITHOUT G80 (LOCKING DIFFERENTIAL). Read More »

    • TSB #3364

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10014953

      REAR AXLE RETAINER BUTTON BREAKAGE. *EH Read More »

    ELECTRICAL SYSTEM

    • TSB #00149D

      Date Announced:
      JAN 01, 2004
      NHTSA ID:
      #10005439

      MALFUNCTION INDICATOR LAMP ON WITH A P0300 SET AND A MISFIRE. VARIOUS MODELS INCLUDING 1996 - 1999 P32 MODELS. SIT BULLETIN 1416475. *TT Read More »

    • TSB #00149C

      Date Announced:
      NOV 18, 2003
      NHTSA ID:
      #10004223

      MALFUNCTION INDICATOR LAMP ON WITH A P0300 SET AND A MISFIRE. VARIOUS MODELS INCLUDING THE 1996-1999 P32 AND THE 1996-2002 GMC C/K TRUCK. *TT Read More »

    ELECTRICAL SYSTEM:IGNITION

    • TSB #3238

      Date Announced:
      OCT 13, 2006
      NHTSA ID:
      #10010656

      PRNDL LIGHT UP WITH KEY OUT OF IGNITION AND DOOR OPEN. *EH Read More »

    EXTERIOR LIGHTING:TURN SIGNAL:FLASHER UNIT

    • TSB #3356

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10013491

      TURN SIGNAL FLASH TOO FAST, OPPOSITE SIDE DIM. *TT Read More »

    VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR

    STRUCTURE

    • TSB #3339

      Date Announced:
      NONE PROVIDED
      NHTSA ID:
      #10017184

      WATER INTRUSION AT RIGHT OR LEFT A-PILLAR. *SC Read More »

    STRUCTURE:BODY

    • TSB #151200

      Date Announced:
      DEC 15, 2000
      NHTSA ID:
      #617786

      THIS SERVICE MESSAGE ADDRESSES CUSTOMER CONCERNS REGARDING THEFT DETERRENTS, A NEW REAR DOOR OUTSIDE HANDLE AND LICENSE PLATE HOUSING DEVELOPED FOR ADDED THEFT PROTECTION. *TT Read More »

    STRUCTURE:BODY:DOOR

    • TSB #020864012A

      Date Announced:
      JUN 01, 2003
      NHTSA ID:
      #10002842

      SIDE CARGO DOOR BINDS. *TT Read More »

    • TSB #020864012

      Date Announced:
      MAY 01, 2002
      NHTSA ID:
      #634592

      SIDE CARGO DOORS ARE HARD TO OPEN OR STIFF ON 1996 - 2002 CHEVROLET AND GMC G-VAN MODELS. *TT Read More »

    STRUCTURE:BODY:DOOR:HINGE AND ATTACHMENTS

    • TSB #060864032

      Date Announced:
      OCT 01, 2006
      NHTSA ID:
      #10020952

      SIDE CARGO DOOR IS HARD TO OPEN. INSTALL NEW HINGE PINS. *KB Read More »

    • TSB #240901

      Date Announced:
      SEP 24, 2001
      NHTSA ID:
      #626337

      CUSTOMERS MAY COMPLAIN OF BINDING SIDE CARGO DOOR HINGES. *SLC Read More »

    TIRES

    • TSB #030310002

      Date Announced:
      JUN 01, 2004
      NHTSA ID:
      #10012160

      USE OF CORRECT INSTALLATION PROCEDURE FOR LOOSE HUBCAP ASSEMBLY. THIS SERVICE BULLETIN REPLACES 030310002. *EH Read More »

    UNKNOWN OR OTHER

    • TSB #020604020B

      Date Announced:
      OCT 01, 2003
      NHTSA ID:
      #10004726

      THIS BULLETIN IS BEING REVISED TO INFORM DEALERS THAT THE VCM / PCM (POWERTRAIN CONTROL MODULE) MAY BE SUSCEPTIBLE TO CORROSION AND / OR WATER INTRUSION. *TT Read More »

    • TSB #020604020A

      Date Announced:
      AUG 01, 2003
      NHTSA ID:
      #10004358

      THIS BULLETIN IS BEING REVISED TO INFORM DEALERS THAT THE VCM / PCM (POWERTRAIN CONTROL MODULE) MAY BE SUSCEPTIBLE TO CORROSION AND / OR WATER INTRUSION. *TT Read More »

    • TSB #020604020

      Date Announced:
      MAY 01, 2002
      NHTSA ID:
      #634727

      THIS BULLETIN IS BEING REVISED TO INFORM DEALERS THAT THE VCM / PCM (POWERTRAIN CONTROL MODULE) MAY BE SUSCEPTIBLE TO CORROSION AND / OR WATER INTRUSION. *TT Read More »