Vehicles, Owner, Dealer, Parts and Service Information
VEHICLES INVOLVEDInvolved are certain 1985 Chevrolet Nova model vehicles produced within the following parameters:
PLANT FROM
Fremont FZ100001
FZ128026
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 the 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.
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.
PARTS INFORMATION
Parts required to complete this modification are to be obtained from General Motors Service Parts Operations (GMSPO). To ensure that these parts will be obtained as soon as possible, they should be ordered from GMSPO on a C. I .O. with no special instruction code, but an advise code (2).
PART NUMBER DESCRIPTION QUANTITY/VEHICLE
94840126 Igniter Assembly 1
Igniter Assembly includes: (2) P/N 94842825 retaining screws
(3) P/N 94842442 terminal screws
New igniter assemblies are identified with an "N" after the part number on the box (indicating "new") and by a short green stripe on the part itself (see service procedure). Dealers are encouraged to order (based on attached involved vehicle listing) some quantity of parts upon receipt of this bulletin so that parts are available upon owner request for vehicle correction.
SERVICE PROCEDURE
Reference 1985/1986 Nova Service Manual Section 6D for 1985. The shop manual contains specific instructions in Section 6D for both 1985 and 1986 model year vehicles - YOU MUST REFER TO THE 1985 SECTION.
FIGURE 1:
1. Remove distributor cap and visually inspect igniter assembly for identification shown in figure 1.
If no stripe (view A) or a long black stripe (view B) is present, replacement of igniter assembly is required. Refer to instructions below.
If a short green stripe (view C) is present, replacement is not required, reinstall distributor cap and proceed to step 10.
2. Reference page 6D-12 figure 6D-24 and following service manual instructions remove the following parts ( [ ] indicates item number shown on figure 6D-24):
Rotor [10] Igniter dust cover [11] Ignition coil dust cover [13]
Disconnect green connector on IIA wire [8].
3. Disconnect white and pink wires at top of igniter (fig. 6D-29, page 6D-13) and black wire at side of igniter. Discard three (3) terminal screws.
4. Remove two (2) coil terminal nuts and disconnect red and yellow igniter wires from coil studs. DO NOT DISCARD TWO (2) COIL. NUTS.
5. Remove two (2) igniter retaining screw's located in distributor housing below igniter (fig. 6D-34, page 6D-16) . Discard two (2) igniter retaining screws. Remove igniter from distributor.
FIGURE 1:
6. Ensure that new igniter P/N 94840126 is identified by a green stripe as shown in figure 1, view C of this bulletin.
7. Install new igniter by reversing removal steps above and using three.
(3) new terminal screws and two (2) new retaining screws provided.
When connecting yellow and red wires from igniter to ignition coil studs, ensure that yellow and blue wires are connected to negative (-) stud and red and brown wires are connected to positive (+) stud. Route red and brown wires through routing grooves on face of ignition coil to ensure wires will not contact rotor. Ensure pink and white wires are located in retaining slots provided at lower end of igniter to prevent contact with rotor, distributor housing or advance plate.
SERVICE PROCEDURE (CONT'D)
8. Reassemble distributor following disassembly procedure in reverse order.
9. Reconnect green IIA wire connector.
10. Install Campaign Identification Label.