Defect & Vehicles Involved, Owner Notification & Dealer Campaign Information
DEFECT INVOLVEDGeneral Motors has determined that a defect which relates to motor vehicle safety may exist in certain 1987-88 Chevrolet Spectrum "Turbo" model vehicles. The positive crankcase ventilation (PCV) valve on these vehicles may provide inadequate air flow under low engine load conditions. This can allow a water/oil mixture to build up in the hose from the oil separator to the air inlet duct. After the engine is stopped this water/oil mixture can, under cold weather conditions, freeze and completely block the oil separator to air duct hose. Under normal engine operation, blockage of this hose will result in increased pressure within the
DEFECT INVOLVED crankcase. This increased pressure can cause oil leaks. If a sufficient quantity of oil comes in contact with the hot exhaust system, an engine compartment fire could result without prior warning.
To prevent this condition from occurring, it will be necessary to replace the PCV valve on all involved vehicles with a newly designed valve. The new valve will allow increased air flow in the oil separator to air duct hose and keep water/oil from accumulating.
VEHICLES INVOLVED
Involved are certain 1987-88 Chevrolet Spectrum "Turbo" model vehicles produced within the following VIN breakpoints:
MODEL/YEAR PLANT FROM THROUGH
1987 Fujisawa H8446425 H8491672
1988 Fujisawa J7500108 J7554513
Involved vehicles have been identified by Vehicle Identification Number Computer Listings. Computer listings contain the complete Vehicle Identification Number, owner name and address data, and are furnished to involved dealers with the campaign bulletin. Owner name and address data furnished will enable dealers to follow-up with owners involved in this campaign.
These listings may contain owner names and addresses obtained from State Motor Vehicle Registration Records. The use of such motor vehicle registration data for any other purpose is a violation of law in several states. Accordingly, you are urged to limit the use of this listing to the follow-up necessary to complete this campaign. Any dealer not receiving a computer listing with the campaign bulletin has no involved vehicles currently assigned.
OWNER NOTIFICATION
Owners will be notified of this campaign on their vehicles by Chevrolet Motor Division (see copy of Owner Letter included with this bulletin).
DEALER CAMPAIGN RESPONSIBILITY
Dealers are to service all vehicles subject to this campaign at no charge to owners, regardless of mileage, age of vehicle, or ownership, from this time forward.
DEALER CAMPAIGN RESPONSIBILITY
Whenever a vehicle subject to this campaign is taken into new or used vehicle inventory, or it is in your dealership for service in the future, you should take the steps necessary to be sure the campaign correction has been made before reselling or releasing the vehicle.
Owners of vehicles recently sold from your new vehicle inventory are to be contacted by the dealer, and arrangements made to make the required correction according to instructions contained in this bulletin.