For 1990-2009 cars

# ENG. DOES NOT STAY RUNNING ON COLD START (DIAG. /INST. PROM)

#### SUBJECT: ENGINE DOES NOT STAY RUNNING ON COLD START (DIAGNOSE/INSTALL NEW PROM)

#### VEHICLES AFFECTED: 1991-93 "N" MODELS WITH 3300 (VIN N, RPO LG7)

THIS BULLETIN SUPERSEDES AND REPLACES CORPORATE BULLETIN REFERENCE NUMBER 106505.** THIS BULLETIN IS BEING REVISED TO INCLUDE THE 1993 MODEL YEAR AND TO REVISE THE 1992 MODEL YEAR PART NUMBERS.

#### CONDITION:

--------- Some 1991-93 "N" models equipped with a 3300 engine (VIN Code N, RPO LG7), may experience a condition described as engine does not stay running on initial cold start.

#### CORRECTION:

---------- If this condition is experienced and cannot be repaired by using currently published service diagnostic procedures, it may be necessary to install a new service MEM-CAL after basic engine controls and systems performance have been verified.

#### PARTS INFORMATION:

PROM PROM MEM-CAL SERVICE SCANNER BROADCAST YEAR SERIES AXLE PART NUMBER I.D. NO. CODE ---- ------ ---- ----------- -------- --------- 1992-93 N 2.39 16188352 6204 BDHN FED

N 2.39 16188355 6214 BDHP CAL

1991 N 2.39 16184606 4024 BCUR FED

N 2.39 16184611 4034 BCUS CAL

#### WARRANTY INFORMATION:

Use applicable Labour Operation and Time.

**BULLETIN REFERENCES: --------------------- Corporate Ref. 106505

General Motors of Canada 92-633-102

Pontiac Division 92-6-19

Oldsmobile Division 92-T-39

Buick Division 92-6E-7

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.