TRANSMISSION GRINDS ON A 1-2 OR 2-3 SHIFT. Chevrolet Blazer

SUBJECT: TRANSMISSION GRINDS ON A 1-2 OR 2-3 SHIFT (CONTACT TECHNICAL ASSISTANCE FOR EXCHANGE)

MODELS: 1996-97 CHEVROLET AND GMC S MODELS WITH NV1500 MANUAL TRANSMISSION

CONDITION:

SOME OWNERS MAY COMMENT ABOUT A TRANSMISSION GRIND NOISE WHEN SHIFTING FROM FIRST TO SECOND, OR FROM SECOND TO THIRD GEARS.

CORRECTION:

ROAD TEST THE VEHICLE TO VERIFY THE CONCERN. REFER TO THE DIAGNOSIS TROUBLESHOOTING CHARTS IN SECTION 7B OF THE SERVICE MANUAL FOR PROBABLE CAUSES AND CORRECTIONS. IF THE CAUSE CAN NOT BE DETERMINED WITHOUT DISASSEMBLING THE TRANSMISSION, CONTACT YOUR DIVISIONAL TECHNICAL ASSISTANCE GROUP WITH DETAILS OF THE CONCERN. TECHNICAL ASSISTANCE WILL OPEN A CASE, AND IF AN EXCHANGE IS DETERMINED NECESSARY, THE TRANSMISSION WILL BE SHIPPED TO ARRIVE WITHIN 48 HOURS (96 HOURS FOR CANADIAN DEALERS). THE REPLACEMENT TRANSMISSION WILL BE SHIPPED FILLED WITH FLUID.

IMPORTANT: THIS EXCHANGE PROGRAM WILL END ON AUGUST 31, 1997. ROUTINE REPAIR PROCEDURES SHOULD BE FOLLOWED AFTER THAT DATE.

IMPORTANT: TRANSMISSIONS WHICH HAVE BEEN DISASSEMBLED (REMOVAL OF EITHER CASE HALF) ARE NOT ELIGIBLE FOR EXCHANGE. EXCHANGE TRANSMISSIONS MUST NOT BE DISASSEMBLED AND MUST BE RETURNED AS A COMPLETE UNIT. DEALERSHIPS RETURNING A TRANSMISSION EVEN PARTIALLY ASSEMBLED WILL BE SUBJECT TO BEING BILLED $1,050 FOR THE EXCHANGE TRANSMISSION.

WHEN THE EXCHANGE UNIT IS RECEIVED, THE REMOVED TRANSMISSION MUST BE SHIPPED TO NVG WITHIN 10 WORKING DAYS TO AVOID A CHARGE-BACK. FAILURE TO RETURN THE TRANSMISSION WILL RESULT IN THE DEALERSHIP BEING BILLED $1,000 WHICH IS THE VALUE OF THE EXCHANGE TRANSMISSION. RETURN SHIPPING INFORMATION WILL BE INCLUDED WITH THE EXCHANGE TRANSMISSION.

A PACKAGE CONTAINING THE FOLLOWING WILL BE ATTACHED TO THE EXCHANGE UNIT: INSTRUCTION SHEET REPORTING FORM RETURN SHIPPING INFORMATION

PREPARATION FOR SHIPPING

1. DRAIN ALL OIL FROM THE TRANSMISSION BEING RETURNED.

2. REMOVE ALL PLASTIC SHIPPING PLUGS AND COVERS FROM THE REPLACEMENT TRANSMISSION AND INSTALL THEM ON THE RETURN TRANSMISSION.

3. PLACE THE COMPLETED REPORT FORM AND A COPY OF THE REPAIR ORDER IN THE ENCLOSED PLASTIC BAG AND ATTACH THE BAG TO THE RETURN TRANSMISSION.

4. PACK THE RETURN TRANSMISSION INTO THE ORIGINAL SHIPPING CONTAINER AND RETURN TO NVG AT THE FOLLOWING ADDRESS: NEW VENTURE GEAR MUNCIE TRANSMISSION DIVISION 1200 W. 8TH MUNCIE, IN 47302

IMPORTANT: ALL RETURN SHIPPING IS "FREIGHT COLLECT" TO NEW VENTURE GEAR. SHIPPING INFORMATION IS INCLUDED WITH THE REPLACEMENT TRANSMISSION.

THIS TRANSMISSION MUST USE MANUAL TRANSMISSION FLUID, P/N 12377916, BECAUSE IT CONTAINS A SPECIAL FRICTION MODIFIER. OTHER FLUIDS SHOULD NOT BE SUBSTITUTED AS THEY MAY RESULT IN POOR SHIFT QUALITY.

PARTS INFORMATION:

P/N DESCRIPTION QTY 12377916 FLUID, MANUAL AS REQUIRED TRANSMISSION, 1 QUART

PART IS CURRENTLY AVAILABLE FROM GMSPO.

EXCHANGE TRANSMISSIONS ARE SHIPPED FILLED WITH FLUID BUT FLUID LEVEL SHOULD BE CHECKED PRIOR TO OPERATION.

WARRANTY INFORMATION:

EXCHANGE TRANSMISSIONS ARE SHIPPED ON A NO CHARGE BASIS. FOR TRANSMISSIONS EXCHANGED UNDER WARRANTY, USE:

LABOR OPERATION LABOR TIME OTHER HOURS PART ALLOW K2720 USE PUBLISHED 0.2 HR* $418.50** LABOR OPERATION SUBMIT AS A TIME NET ITEM

*ADMINISTRATIVE ALLOWANCE

**THE PARTS ALLOWANCE REPRESENTS 40% OF THE DEALER NET PRICE FOR THE TRANSMISSION SUPPLIED

IMPORTANT: LABOR OPERATION IS CODED TO BASE VEHICLE COVERAGE IN THE WARRANTY SYSTEM.

FIGURES: 0

CAPTIONS: 0

GENERAL MOTORS BULLETINS ARE INTENDED FOR USE BY PROFESSIONAL TECHNICIANS, NOT A "DO-IT-YOURSELFER". THEY ARE WRITTEN TO INFORM THOSE TECHNICIANS OF CONDITIONS THAT MAY OCCUR ON SOME VEHICLES, OR TO PROVIDE INFORMATION THAT COULD ASSIST IN THE PROPER SERVICE OF A VEHICLE. PROPERLY TRAINED TECHNICIANS HAVE THE EQUIPMENT, TOOLS, SAFETY INSTRUCTIONS AND KNOW-HOW TO DO A JOB PROPERLY AND SAFELY. IF A CONDITION IS DESCRIBED, DO NOT ASSUME THAT THE BULLETIN APPLIES TO YOUR VEHICLE, OR THAT YOUR VEHICLE WILL HAVE THAT CONDITION. SEE A GENERAL MOTORS DEALER SERVICING YOUR BRAND OF GENERAL MOTORS VEHICLE FOR INFORMATION ON WHETHER YOUR VEHICLE MAY BENEFIT FROM THE INFORMATION.