Variable Fuel - Pump/Sender Service Precautions

Number: 92-160A-6C REVISED

Section: 6C

Date: JUNE 1992

Corporate Bulletin No.: 236301R

ASE No.: A1, A8

Subject:
VARIABLE FUEL SENDER AND PUMP SERVICE PART INFORMATION

Model and Year:
1991-92 LUMINA WITH 3.1L ENGINE

THIS BULLETIN CANCELS AND SUPERSEDES DEALER SERVICE BULLETIN NO. 92-160-6C, DATED APRIL 1992. THE PART NUMBER FOR THE PULSATOR HAS BEEN CHANGED. ALL COPIES OF 92-160-6C SHOULD BE DISCARDED.

This bulletin is being issued to provide information pertaining to Fuel Level Sender, Pump and related component service part availability for 1991-92 variable fuel (RPO N14) Chevrolet W-cars.

IMPORTANT:
In cases where the fuel pump strainer is contaminated with rust, dirt, slime or other fuel contaminants - change only the pump strainer. The fuel pump should not require changing.

However, in cases where diagnosis has led to a fuel pump change or removal from sender due to an inoperative pump, low fuel pressure or other fuel pump conditions, it is always necessary to replace the strainer at the same time, when replacing or reinstalling the pump.

CAUTION:
^ A by-product of methanol engine exhaust is formaldehyde. Exposure to formaldehyde can cause burning of the eyes, nose and throat and even death. Formaldehyde gives off sharp odors you should notice before it becomes harmful.

^ Methanol is a poison. It can cause headaches, blindness, and even death. Methanol can enter your body through your skin much faster than gasoline will. Drinking only a mouthful of methanol can cause death. When you are around methanol:

^ In closed, or nearly closed spaces, methanol fuel is easier to ignite than gasoline. All flame and sparks must be kept away from methanol fuel and no live electrical equipment should ever be connected in fuel tanks containing any amount of fuel.

^ Avoid spills. If it gets on you, wash your skin right away. If methanol spills on your clothing, change clothes and wash your skin immediately.

^ Never try to siphon methanol by mouth.

^ Never use it for cleaning.

^ Never let anyone drink it.

^ Don't breathe the vapor from methanol. Breathing it over a long time also can cause blindness and death.

^ Always wear a face shield, heavy rubber gloves and heavy rubber apron.

^ Always work in a well ventilated area.

Parts are currently available from GMSPO.