1992 GMC TYPHOON

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📍 integrated with valve body inside 4L60-E transmission

🔧 Tech 1 with TIS cartridge

⚠️ Requires transmission pan removal and valve body drop. Adaptive shift tables relearn automatically through drive cycles.

📍 driver side frame rail, forward of driver door

⚠️ Bosch ABS-VI system with integrated hydraulic unit. Bleeding procedure critical; no programming required but Tech 1 useful for air purge function.

📍 passenger side firewall, behind battery tray

🔧 Tech 1 with TIS cartridge

⚠️ Controls turbocharged 4.3L V6 (LB4). MEMCAL chip replacement required for calibration changes; idle relearn and TPS minimum required after installation.

📍 instrument panel, behind gauge face

⚠️ Electronic speedometer driven by Vehicle Speed Sensor (VSS) signal from transmission. No odometer programming capability; mileage stored in cluster.

📍 Center dash, behind climate control panel

⚠️ Electronic automatic temperature control; vacuum-actuated blend doors

📍 under center console, below radio stack

⚠️ Driver airbag only (no passenger airbag). Must disconnect battery and wait 10 minutes before removal. Crash data stored but not clearable in this generation.

📍 passenger side interior kick panel, above ECM

⚠️ Controls BorgWarner 4472 electronic shift-on-the-fly transfer case. Push-button 2WD/Auto/4WD selector on dash.

📍 Center dash, in radio cavity

🔧 Radio code card

⚠️ Delco Electronics unit; TheftLock code required if equipped; code on card in owner's manual or glovebox

2006-05-19

CERTAIN REPLACEMENT FUEL FILTERS, FRAM BRAND NAME P/N G3727, WITH DATE CODES X52911 THROUGH X60801 SEQUENTIALLY OR X600141 AND A MEXICO COUNTRY OR ORIGIN MARKING ON THE FUEL FILTER HOUSING MANUFACTURED FROM OCTOBER 18, 2005, THROUGH MARCH 21, 2006, SOLD FOR USE ON THE VEHICLES LISTED ABOVE AND ON CERTAIN SCHOOL BUSES. (TO SEE THE SCHOOL BUS ENGINE SIZES, CLICK ON "DOCUMENT SEARCH" AND THEN "BUS APPLICATIONS"). THE CONNECTOR ON THE FUEL FILTER WAS NOT MANUFACTURED TO HONEYWELL'S SPECIFICATION. AS A RESULT, THE O-RING MAY NOT SEAT CORRECTLY ON THE FUEL LINE.

Consequence: THIS CONDITION MAY CAUSE AN INADEQUATE SEAL AT THE CONNECTION, POTENTIALLY LEADING TO A FUEL LEAK. IN THE PRESENCE OF AN IGNITION SOURCE, A FIRE COULD OCCUR.

Remedy: HONEYWELL WILL NOTIFY OWNERS AND REPLACE THE FUEL FILTERS FREE OF CHARGE. THE RECALL BEGAN ON OCTOBER 18, 2006. OWNERS MAY CONTACT FRAM CUSTOMER SERVICE AT 1-800-890-2075 (OPTION 1).

2006-05-18

CERTAIN R&B, INC. CENTRAL MULTIPORT FUEL INJECTION (CMFI) FUEL RETURN LINES, MODELS HELP 55163, NAPA BALKAMP 700-3270, AND THE CONNECTION 2560001, SOLD FOR USE AS REPLACEMENT EQUIPMENT FOR THE VEHICLES LISTED ABOVE. THE FUEL RETURN LINE HAS A MECHANICAL BLEED VALVE WHICH WAS NOT INSTALLED AT THE PROPER TORQUE.

Consequence: A FUEL LEAK CAN OCCUR AT THE VALVE, POSSIBLY RESULTING IN A FIRE.

Remedy: R&B, INC. WILL NOTIFY OWNERS AND AT THE CUSTOMERS REQUEST, EITHER REPLACE THE FUEL LINE OR OFFER A FULL REFUND. THE RECALL BEGAN ON MAY 4, 2006. OWNERS MAY CONTACT R&B, INC. AT 215-712-5330.

1991-11-25

THE LINK CONNECTING THE ELECTRONIC REAR HEIGHT SENSOR TO THE REAR AXLE CAN DISCONNECT UNDER SEVERAL CONDITIONS, ALLOWING THE ARM ATTACHED TO THE SENSOR TO LODGE BETWEEN THE REAR AXLE ASSEMBLY AND THE RIGHT REAR BRAKE PIPE. THIS ABRADES THE BRAKE PIPE AND COULD LEAD TO REAR BRAKE FAILURE.

Consequence: ABRASION OF THE BRAKE LINE COULD RESULT IN LOSS OF REARBRAKES. THE FRONT BRAKES WOULD FUNCTION, BUT THE VEHICLE WOULD NEED INCREASEDSTOPPING DISTANCES WHICH COULD RESULT IN AN ACCIDENT.

Remedy: INSTALL RETENTION CLIPS TO INSURE THE LOWER AND UPPER BALL SOCKET CANNOT BE REMOVED FROM THE BALL; ADD A DOWN STOP ON THE SENSOR ARM; AND ADD A SHIELD ON THE REAR AXLE.