COOLANT FAN/IDLE SPEED CONTROL NEW DIAG. CHARTS / ENG CODE H

Model and Year 1983-84 CAMARO Z28

Attached are Electrical Diagnosis Charts for the 1983 and 1984 Camaro Z28 equipped with a 305 cubic inch high output (L69) engine.

These diagnosis sheets pertain to the electric cooling fan, idle speed and spark control which are unique to the high output engine.

These diagnosis sheets should be filed in your Rear Wheel Drive Service Manual, Section 8A.

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.