Engine - Cold Engine Long Crank Unless Key Cycled

89pontiac26

Bulletin Number: 90-6-14
Reference Number: 906508R
Publish Date: 12/89

Subject: EXTENDED CRANK (NEW PART) SOME 1989 AND EARLY 1990 BONNEVILLE MODELS EQUIPPED W/3800 (VIN CODE C)

Models

Affected: 1989-90 BONNEVILLE

Some 1989 through early built 1990 models equipped with the 3800 engine (VIN Code C), may exhibit a condition of a cold engine long crank, but if the ignition key is cycled, the engine will start.

If this condition is experienced on a vehicle with good fuel pressure and the basic engine, controls and systems are performing properly, it may be necessary to install a new service Mem-Cal with a recalibrated fuel multiplier ratio during cranking.

Mem-Cals are currently available from GMSPO.

Axle Option Code *Scanner Mem-Cal Srv.
Model Axle Located on Srv. ID If This M-C Pt.#
Year Application Ratio Parts ID Label is Installed Number

89/90 LE FED 2.84 F17 8094 16148060
89/90 LE CAL 2.84 F17 7994 16148005
89/90 SE FED 2.97 F79 8004 16148006
89/90 SE CAL 2.97 F79 8014 16148007
89/90 SSE FED 3.33 GX3 8024 16148008
89/90 SSE CAL 3.33 GX3 8034 16148009

IMPORTANT: The 1990 calibrations are currently being used in production. Verify if this Mem-Cal is already installed by using the scanner I.D.

Labor Operation Number: J6364
Labor Time .5 Hour