Suspension - Snapping/Popping or Clunking: Overview
NUMBER: 13-001-00 Rev. BGROUP: Frame And Bumpers
DATE: Oct. 27, 2000
THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 13-01-00 REV. A, DATED JULY 28, 2000, WHICH SHOULD BE REMOVED FROM YOUR FILES. THIS IS A COMPLETE REVISION AND NO **ASTERISKS** HAVE BEEN USED TO HIGHLIGHT REVISIONS.
SUBJECT:
Snapping/Popping/Clunking Sound Heard During Braking Or While Driving Over Bumps
OVERVIEW:
This bulletin involves replacing the torsion bar anchor and on some vehicles, the transmission crossmember.
MODELS:
2000 (AN) Dakota
2000-2001 (DN) Durango
2000 (R1) Dakota (International Markets)
NOTE:
THIS BULLETIN APPLIES TO 4X4 (AN) DAKOTA VEHICLES BUILT BEFORE NOVEMBER 15, 1999 (MDH 1115XX), ALL 4X4 (DN) DURANGO VEHICLES, AND ALL (R1) DAKOTA (INTERNATIONAL MARKET) VEHICLES
SYMPTOM/CONDITION:
A snapping, popping or clunking sound may be heard while driving and braking over washboard roads, during a moderately hard stop at low speeds, and/or while slowly driving over moderate bumps such as a driveway approach.
DIAGNOSIS:
1. Road test the vehicle on a smooth surfaced road (preferably concrete) in an area where you can safely perform several abrupt stops from a speed of 20 mph.
2. Accelerate the vehicle to approximately 20 mph.
3. Apply the service brakes hard enough to allow the Antilock Brakes to activate. If a snapping, popping or clunking sound is heard, perform the Repair Procedure. If the snapping, popping or clunking sound is not heard, repeat the procedure in reverse. If a snapping, popping or clunking sound is now heard, perform the Repair Procedure. If the snapping, popping or clunking sound is still not heard, repeat the procedure one more time in a forward direction before proceeding to the next step. If a snapping, popping or clunking sound is now heard, perform the Repair Procedure.
NOTE:
DURING ANTILOCK BRAKING, IT IS NORMAL TO HAVE SOME PULSATIONS FELT THROUGH THE BRAKE PEDAL AND THROUGH THE VEHICLE'S SUSPENSION. DO NOT CONFUSE NORMAL ANTILOCK BRAKING PULSATIONS FOR A SNAP-PING /POPPING /CLUNKING SOUND.
4. Slowly drive the vehicle over a moderate road input such as a driveway approach or a curb. If a snapping, popping or clunking sound is heard, perform the Repair Procedure.
NOTE:
AN ALTERNATIVE DIAGNOSIS CAN BE PERFORMED ON A WASHBOARD ROAD BY APPLYING A LIGHT TO MODERATE BRAKE WHILE DRIVING.
PARTS REQUIRED:
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
FAILURE CODE: