PCM - Hesitation/Surge

Bulletin No.: 008/97
Issued: 04/08/97
Revised

Category
F

Applicable Model/s
1995-96
B3000

Subject:
HESITATION / SURGE AT 30-40 MPH (48-64 KM/H) UNDER LIGHT LOAD AT NORMAL OPERATION TEMP

NOTE:
This bulletin replaces the previously issued bulletin (Cat F, 021/96).

APPLICABLE MODELS/VINS
All 1995 - 96 B3000

DESCRIPTION

Some vehicles may experience hesitation and/or surge at cruising speeds [40-30 MPH (48-64 KM/H)] under light engine load conditions with the engine at normal operating temperature. This concern may be aggravated by high ambient temperatures, high humidity and low fuel volatility.

A Powertrain Control Module (PCM) with revised calibration is available to reduce this concern. Customers complaining of this concern should have the vehicle inspected and repaired according to the instructions in this bulletin.

REPAIR PROCEDURE

1. Verify the concern.

2. Perform the diagnostic procedure according to section F of the applicable workshop manual. Service as required.

3. If the concern still exists, replace the PCM with a new service part. Refer to the PCM Reference Chart for the correct application.

4. Verify repair.

5. List the date, dealer code and alterations preformed on the "Authorized Modification" decal.

^ Clean the area next to the Vehicle Emissions Control Information decal and install the "Authorized Modification decal.

^ Cover the decal with a clear plastic shield.

NOTE:
This information advises technicians of changes made to the PCM, if future repairs are necessary.





PARTS INFORMATION (PCM Reference Chart) part numbers are for powertrain control modules, all quantities are 1.

Warranty INFORMATION

(Applies To Verified Customer Complaints On Vehicles Covered Under Normal Warranty. Refer To The SRT Microfiche For Warranty Term Information.)

Warranty Type: A

Symptom Code: 08

Damage Code: 9W

Part Number Main Cause: Refer to PCM Reference Chart, use appropriate part number as PNMC.

Quantity: 1

Operation Number: F0812XRX (R&R PCM)

Labor Hours: 0.4 Hrs.

NOTE:
Refer to the SRT Microfiche for available diagnostic times.





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