Engine - Chuggle/Surge at 1500 to 2000 RPM

File In Section: 6E - Engine Fuel & Emission

Bulletin No.: 47-65-25A

Date: March, 1995

SUBJECT:
Chuggle or a Surge (Install New E-PROM)

MODELS:
1993 Chevrolet Camaro
1993 Pontiac Firebird
with 5.7L Engine (VIN P - RPO LT1) and 4L6O Automatic Transmission.

This bulletin is being revised to add transmission type and to change warranty information. Please discard Corporate Bulletin Number 47-65-25 (Section 6E - Engine Fuel & Emission).

CONDITION

Some owners may comment of a chuggle or a surge condition at approximately 1500-2000 engine RPM's, 50-60 mph, on a light throttle acceleration.

CORRECTION

Install the following E-PROMs.

PARTS INFORMATION





Federal Emissions

WARRANTY INFORMATION

For vehicles repaired under warranty, use:

Labor Operation Labor Time
J6364 Use published labor operation time.