Fuel - Poor Driveability In Warm Weather

91nissan03

Models Sentra and Pulsar

Section Engine Fuel

Classification EF84-011

Bulletin No. TS84-083

Date July 30, 1984


HOT ENGINE PERFORMANCE IN WARM WEATHER SENTRA, PULSAR (E15, E16) CARBURETED FUEL PUMP


APPLIED MODELS: 1982-1984 Sentra, 1983-1984 Pulsar (non-turbo), (E15 and E16 carbureted engines only)

SERVICE INFORMATION

Some of the applied models may experience poor driveability after extended idle or after short engine-off soaks. This condition may occur when inappropriate winter grade fuels are used during the spring and summer seasons. To reduce this condition, use the following Parts Information and Service Procedure as a countermeasure for affected A/T vehicles prior to the Applied VINs and all affected M/T vehicles.

APPLIED VINs ALL MODELS AFFECTED BY OCTOBER 1, 1983 PRODUCTION

JN1PB11S( )EU-104200
JN1PB11S( )EU-601801
JN1PB12S( )EU-107680
JN1PB12S( )EU-600100
JN1PB14S( )EU-102562
JN1PB15S( )EU-105260
JN1MN24S( )EM-005974

NOTE: This countermeasure has been applied to Federal A/T production vehicles beginning with the Applied VINs above.

PARTS INFORMATION


PART NAME PART NUMBER

Fuel Pump 17010-34A25
Fuel hose, filter to pump 16440-34M10
Fuel hose, pump to return 16440-34M12
Blind plug 16599-05M00
Clip (2) 22472-B8000


SERVICE PROCEDURE

NOTE: Use the illustration on page 3 as a guide for the Service Procedure.





After disconnecting fuel hoses, drain fuel remaining in fuel hoses into a container.

1. Remove the air cleaner.

2. Remove and discard the fuel hose from the carburetor to the fuel return pipe. Install the blind plug (P/N 16599-05M00) on the pipe marked OUT at the carburetor and tighten the hose clamp.

3. Disconnect at the fuel pump the fuel hose between the fuel pump outlet and carburetor inlet.

4. Remove and discard the fuel hose between the fuel filter outlet and fuel pump inlet.

NEW FUEL PUMP AND FUEL HOSE ROUTING:

5. Remove the fuel pump and install the new pump (P/N 17010-34A25) and a new gasket.

6. Connect the fuel hose from the fuel pump outlet to the carburetor inlet. Tighten the hose clamp.

7. Install new fuel hose (P/N 16440-34M10) from the fuel filter outlet to the fuel pump inlet. Tighten the hose clamps.

8. Install the new fuel hose (P/N 16440-34M12) from the fuel pump return to the fuel return tube. Tighten the hose clamps.

9. Install the two clips (P/N 22472-B8000) around the fuel hoses as shown in the figure.

10. Install the air cleaner.


WARRANTY INFORMATION

CS PNC CT OP CODE FLAT RATE

1H 17010 99 CD99AA 0.4/hr