SERVICE MANUAL UPDATE IGN. COIL RESISTANCE. Geo Spectrum 1988

For 1990-2009 cars

# SERVICE MANUAL UPDATE IGN. COIL RESISTANCE

#### VEHICLES AFFECTED: 1989 SPECTRUM SERVICE MANUAL

This service bulletin cancels and supersedes the ignition coil resistance specification found on page 6D-28 in both the 1988 Spectrum Service Manual and the 1989 GEO Spectrum Service Manual under the heading "IGNITION COIL (INCORPORATED DISTRIBUTOR)". The correct resistance specifications for the primary and secondary coils are:

Primary Coil Resistance 1.1 to 1.8 ohms

Secondary Coil Resistance 11.2 to 20.5 ohms

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.