CAMPAIGN: WATER-IN-FUEL DETECTOR SYSTEM. Chevrolet Impala 1981

GENERAL MOTORS HAS DETERMINED THAT ON SOME 1981 FULL SIZE CHEVROLET STATION WAGONS AND LIGHT DUTY TRUCK MODELS, EQUIPPED WITH RPO (LF9) 5.7 LITRE DIESEL ENGINE, THE WATER IN FUEL LIGHT MAY INADVERTENTLY COME ON, FALSELY INDICATING WATER IN THE FUEL TANK. THIS CONDITION CAN OCCUR AS A RESULT OF HIGH VOLTAGE OUTPUT ALONG WITH SUDDEN CHANGES IN SYSTEM VOLTAGE OR ELECTRICAL LOADS. TO PREVENT THE POSSIBILITY OF THIS CONDITION OCCURRING, IT WILL BE NECESSARY TO INSTALL A FILTER CAPACITOR IN THE WATER IN FUEL DETECTION LIGHT CIRCUIT AT THE FUSE PANEL.

VEHICLES INVOLVED

INVOLVED ARE SOME 1981 FULL SIZE CHEVROLET AND LIGHT DUTY TRUCK MODELS EQUIPPED WITH RPO (LF9) 5.7 LITRE DIESEL ENGINE WITHIN THE FOLLOWING VEHICLE IDENTIFICATION NUMBER BREAKPOINTS.

PLANT FROM THROUGH FREEMONT (TRUCKS) 1GCDC14Z2BZ100851 1GCDC14Z1BZ102168 ST. LOUIS (TRUCKS) 1GCDC14Z4BS100892 1GCDC14Z6B2105561 JANESVILLE (TRUCKS) 1GCDC14ZXBJ100014 1GCDC14Z4BJ102938 (PASSENGER) 1G1AN35NXBJ105159 1G1AN35N9BJ114712 OSHAWA (TRUCKS) 2GCDC14Z7B1102295 2GCDC14Z3B1119031 (PASSENGER) 2G1AN35N8B1107695 2G1AN35N2B1107921

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 FOR THE FOLLOW UP NECESSARY TO COMPLETE THIS CAMPAIGN.

ANY DEALER NOT RECEIVING A COMPUTER LISTING WITH THE CAMPAIGN BULLETIN WAS NOT SHIPPED ANY INVOLVED VEHICLES.

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

THIS RECALL CAMPAIGN IS TO BE PERFORMED AT NO CHARGE TO OWNERS ON ALL AFFECTED VEHICLES REGARDLESS OF TIME, MILEAGE, OR OWNERSHIP. DEALERS ARE TO INSPECT AND CORRECT ALL AFFECTED VEHICLES IN NEW AND USED VEHICLE STOCK PRIOR TO THEIR SALE.

WHENEVER A VEHICLE SUBJECT TO THIS CAMPAIGN IS TAKEN INTO YOUR 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.

SERVICE PROCEDURE STATION WAGON

1. DISCONNECT NEGATIVE BATTERY CABLE FROM EACH BATTERY.

2. REMOVE SOUND ABSORBER UNDER STEERING COLUMN TO GAIN ACCESS TO FUSE PANEL.

3. REMOVE LOWER LEFT FUSE PANEL ATTACHING BOLT AND INSTALL STAR WASHER ON BOLT. INSTALL BOLT THROUGH CAPACITOR (PROVIDED) MOUNTING BRACKET AND REINSTALL BOLT TO FUSE PANEL (FIGURE #1).

4. LOCATE WATER IN FUEL CIRCUIT YELLOW/BLACK STRIPE WIRE NEAR FUSE PANEL.

5. SPLICE CAPACITOR WIRE TO YELLOW/BLACK STRIPE WIRE USING BLUE SPLICE CLIP (PROVIDED).

6. REINSTALL SOUND ABSORBER.

7. RECONNECT BATTERY CABLES.

INSPECTION - C10 PICKup TRUCK

LOCATE FUSE BLOCK AND CHECK FOR CAPACITOR AT LOWER LEFT FUSE PANEL ATTACHING BOLT:

- IF CAPACITOR IS PRESENT AND LEAD IS CONNECTED TO SOLID YELLOW WIRE NO FURTHER ACTION IS REQUIRED.

- IF CAPACITOR IS PRESENT BUT LEAD IS NOT CONNECTED TO SOLID YELLOW WIRE FOLLOW REWORK DESCRIBED IN PROCEDURE "A".

- IF THERE IS NO CAPACITOR PRESENT FOLLOW REWORK DESCRIBED IN PROCEDURE "B".

PROCEDURE "A" CAPACITOR INSTALLED, LEAD NOT CONNECTED TO SOLID YELLOW WIRE.

1. DISCONNECT NEGATIVE BATTERY CABLE AT EACH BATTERY.

2. CUT CAPACITOR LEAD AS CLOSE TO SPLICE CONNECTOR AS POSSIBLE.

3. BELOW FUSE PANEL, LOCATE BULKHEAD CONNECTOR ASSOCIATED WITH DIESEL CONTROL MODULE AND INSTRUMENT PANEL CONTROLLER HARNESS (SEE FIGURE 2).

4. LOCATE BULKHEAD CONNECTOR CAVITY HAVING (2) YELLOW WIRE LEADS (508 CIRCUIT).

5. SPLICE CAPACITOR LEAD TO SINGLE SOLID YELLOW WIRE FROM BULKHEAD CONNECTOR, USING BLUE SPLICE CLIP CONNECTOR PROVIDED IN KIT (FIGURE 3).

6. RECONNECT NEGATIVE BATTERY CABLE AT EACH BATTERY.

PROCEDURE "B" CAPACITOR NOT INSTALLED

1. DISCONNECT NEGATIVE BATTERY CABLE AT EACH BATTERY.

2. REMOVE LOWER LEFT FUSE PANEL ATTACHING BOLT AND INSTALL STAR WASHER ON BOLT. INSTALL BOLT THROUGH CAPACITOR (PROVIDED) MOUNTING BRACKET AND REINSTALL BOLT TO FUSE PANEL.

3. BELOW FUSE PANEL, LOCATE BULKHEAD CONNECTOR ASSOCIATED WITH DIESEL CONTROL MODULE AND INSTRUMENT PANEL CONTROLLER HARNESS (FIGURE 2). LOCATE CAVITY HAVING TWO (2) SOLID YELLOW WIRE LEADS (508 CIRCUIT).

4. SPLICE CAPACITOR LEAD TO SINGLE SOLID YELLOW WIRE FROM BULKHEAD CONNECTOR USING BLUE SPLICE CLIP CONNECTOR PROVIDED IN KIT (FIGURE NO. 3).

5. RECONNECT NEGATIVE BATTERY CABLE AT EACH BATTERY.

PARTS INFORMATION

THE PARTS REQUIRED TO COMPLETE THIS MODIFICATION ARE TO BE OBTAINED FROM YOUR CHEVROLET ZONE SERVICE DEPARTMENT. PARTS WILL BE FURNISHED TO INVOLVED DEALERS ON A NO CHARGE BASIS. EACH KIT WILL BE IDENTIFIED BY THE CAMPAIGN NO. 81C06. EACH KIT WILL CONSIST OF THE FOLLOWING PARTS:

PART QUANTITY DESCRIPTION

1 CAPACITOR 1 BLUE SPLICE CLIP 1 STAR WASHER

PARTS ARE NOT TO BE ORDERED OR RETURNED TO GENERAL MOTORS PARTS DIVISION

CLAIM INFORMATION

SUBMIT A PRODUCT CLAIM WITH THE INFORMATION INDICATED BELOW:

FAILURE LABOR LABOR *OTHER **NET CODE OPERATION HOURS HOURS AMOUNT

00 V0620 .2 .1 .51

DESCRIPTION: INSPECT AND IF NECESSARY, INSTALL CAPACITOR AND ASSOCIATED PARTS ACCORDING TO THE INSTRUCTIONS CONTAINED IN THIS CAMPAIGN.

* CAMPAIGN ADMINISTRATIVE ALLOWANCE

** 30% OF DEALER NET ONLY FOR PARTS FURNISHED AT NO CHARGE BY CHEVROLET.

DEALERS WILL AUTOMATICALLY RECEIVE THE CORRECT PARTS AND LABOR ALLOWANCE BASED ON THE LABOR OPERATION PERFORMED. AMOUNTS ARE ENTERED ON CAMPAIGN CLAIMS TO ALLOW THE DEALER TO DEVELOP AN ACCOUNTS RECEIVABLE AMOUNT ONLY.

REFER TO THE CHEVROLET CLAIMS PROCESSING MANUAL FOR DETAILS ON PRODUCT CAMPAIGN CLAIM SUBMISSION.

CAMPAIGN IDENTIFICATION LABEL

EACH VEHICLE MODIFIED IN ACCORDANCE WITH THE INSTRUCTIONS OUTLINED IN THIS PRODUCT CAMPAIGN BULLETIN WILL REQUIRE A "CAMPAIGN IDENTIFICATION LABEL". EACH LABEL PROVIDES A SPACE TO INCLUDE THE FIVE DIGIT DEALER CODE OF THE DEALER PERFORMING THE CAMPAIGN SERVICE. THIS INFORMATION MAY BE INSERTED WITH A TYPEWRITER OR BALLPOINT PEN.

EACH "CAMPAIGN IDENTIFICATION LABEL" IS TO BE LOCATED ON THE RADIATOR CORE SUPPORT IN AN AREA WHICH WILL BE VISIBLE WHEN THE VEHICLE IS BROUGHT IN FOR PERIODIC SERVICING BY THE OWNER.

APPLY "CAMPAIGN IDENTIFICATION LABEL" ONLY ON A CLEAN DRY SURFACE.

ADMINISTRATIVE PROCEDURE

REFER TO THE CURRENT CHEVROLET SERVIC POLICIES AND PROCEDURES MANUAL AND CLAIMS PROCESSING MANUAL FOR CAMPAIGN HANDLING AND ADMINISTRATIVE PROCEDURES.

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.