For 1990-2009 cars

# 1986 NEW PRODUCT SERVICE BULLETIN FORMAT

1986 NEW PRODUCT SERVICE BULLETIN FORMAT

#### VEHICLES AFFECTED: All 1986 Models -----------------

In an attempt to make Product Service Bulletins more user oriented, changes have been made to better index and organize them for 1986. This Bulletin Outlines the changes to acquaint you with the new format.

The bulletin numbering methods shown in figure 1, 2 and 3 have been revised to separate the larger groups (Group 6 - Engine and Group 7 - Transmission) into smaller logical subsections. The new subsections will enable technicians to locate bulletins specific to the engine or transmission they are repairing without having to unnecessarily search through bulletins that do not apply to the vehicles they are working on. We encourage you to file your bulletins in numerical sequence to derive the maximum benefit to the new numbering methods.

Product Service Bulletin subject titling and cumulative indexing formats have also been improved for 1986. Bulletin subject titles will begin with 'keywords' so bulletins about similar subject matter will appear together when alphabetically listed in the cumulative index.

For 1986, the index for each of the nine bulletin groups will be printed on its own page. This will give you the freedom to file the index at the beginning of its appropriate group, making it more accessible when reference to it is necessary. A 'Vehicles Affected' column will be included in the new cumulative index. This column will briefly describe those vehicles which may be affected by the information in the particular bulletin. The cumulative index itself will be updated more frequently to keep it current. You can expect to see your first new cumulative index in your October 28, 1985 bulletin package.

There are some other changes in the bulletins for 1986 which we would like to point out to you.

Bulletins which describe engine electrical have previously been filed in Group 8 - Electrical. Beginning with the 1986 bulletins, all engine electrical bulletins will be filed in Group 6 - Engine using the revised numbering scheme described in Figure 2. This change will increase the number of Group 6 bulletins but, the improved numbering scheme will group the engine bulletins into smaller, more manageable subgroups.

Another change which you will soon notice is, the elimination of Group 9 - Accessories. Bulletins previously filed in Group 9 will be filed in the group most applicable to the subject.

When it becomes necessary to revise bulletins, there will now be an indicator in the left margin highlighting the line where the revision has been made. We ask you to destroy any previous bulletin which has been superseded by a revised copy.

During the 1986 bulletin distribution year, you will be receiving 1985 and 1986 bulletins. The 1985 bulletin continue to follow the old format whereas the 1986 bulletins will follow the new.

Finally, General Motors of Canada's Technical Services Department wishes to invite you to write to us about the Product Service Bulletins if you have any comments, criticisms, concerns, or suggestions about the bulletins, please write to us at:

PSB Program Technical Services Department 165-001 General Motors of Canada Limited 215 William Street East, Oshawa, ON L1G 1K7

We are listening!

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.