For 1990-2009 cars

# ENG. DOESN'T STAY RUNNING-COLD START (DIAG./INSTALL NEW PROM)

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

#### MODELS AFFECTED: 1991-93 SKYLARK WITH 3300 (CODE N) ENGINES

THIS BULLETIN IS BEING REVISED TO INCLUDE THE 1993 MODEL YEAR AND TO REVISE THE 1992 MODEL YEAR PART NUMBERS. Please discard Bulletin No. 92-6E-7A.

Some 1991-93 Skylarks equipped with a 3300 engine (Code N) may experience a condition described as engine does not stay running on initial cold start.

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 PROM after basic engine controls and systems performance have been verified.

#### PARTS INFORMATION:

Parts are expected to be available on January 4, 1993. In case of limited inventory, parts will be placed on 400 control to waive VIP surcharges. Only verifiable emergency VIP orders will be accepted. SPO will make every effort to obtain parts. However, the part will be shipped premium transportation at dealer's expense and all other order types will be placed on backorder until the 400 control is removed.

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

Skylark 2.39 16188355 6214 BDHP CAL

1991 Skylark 2.39 16184606 4024 BCUR FED

Skylark 2.39 16184611 4034 BCUS CAL

WARRANTY INFORMATION: Use applicable Labor Operation and Time.

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.