Driveline - Vibration/Boom: Overview

Article No.
97-20-16

09/29/97

^ NOISE - "BOOM" WHEN DRIVING 32-105 KM/H (20-65 MPH) - SUPERCAB 4X2 MODELS WITH A4LD OR MAZDA R1 TRANSMISSION - VEHICLES BUILT FROM 12/15/89 THROUGH 3/30/93

^ VIBRATION WHEN DRIVING 32-105 KM/H (20-65 MPH) - SUPERCAB 4X2 MODELS WITH A4LD OR MAZDA R1 TRANSMISSION - VEHICLES BUILT FROM 12/15/89 THROUGH 3/30/93

^ DRIVESHAFT - "BOOM"/VIBRATION WHEN DRIVING 32-105 KM/H (20-65 MPH) - SUPERCAB 4X2 MODELS WITH A4LD OR MAZDA R1 TRANSMISSION - VEHICLES BUILT FROM 12/15/89 THROUGH 3/30/93

LIGHT TRUCK:
1989-97 RANGER

This TSB article is being republished in its entirety to include vehicles through the 1997 model year and to update the Service Procedure.

ISSUE:
A driveline "boom" or vibration may be experienced when driving 32-105 km/h (20-65 mph) in some vehicles. This may occur because of driveline sensitivity of the vehicle.

ACTION:
Follow the Diagnostic Chart in this TSB article. Install revised design components as required to provide better isolation and improved driveline angles to resolve the concern. Refer to the following Service Procedure for details.

NOTE:
THE SERVICE REPLACEMENT DRIVESHAFTS CONTAINED IN THIS TSB ARTICLE WILL NOT FIT VEHICLES EQUIPPED WITH A MITSUBISHI MANUAL TRANSMISSION. IF DRIVESHAFT REPLACEMENT IS REQUIRED ON MITSUBISHI EQUIPPED MODELS, REFER TO THE PARTS CATALOG FOR CORRECT APPLICATION.





Parts Block and Torque Specification

OTHER APPLICABLE ARTICLES: 91-13-11, 93-18-15

SUPERSEDES: 92-24-13, 94-2-24

WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage For 1992-97 Models, Basic And Powertrain Warranty Coverage For 1989-91 Models

OPERATION DESCRIPTION TIME

972016A Replace Driveshaft 1.3 Hrs.
Assembly, Transmission
Mount, And Replace
Center Bearing
Crossmember Cap As
Outlined

DEALER CODING
CONDITION
BASIC PART NO. CODE
4R602 D9

OASIS CODES: 304000, 509000, 597997, 703000, 703200