'97 Yukon Fuel Pump Problems

toddski · October 6, 2005

Newbie here so be nice

I have a 1997 GMC Yukon that left me stranded two months ago at the ocean with a faulty fuel pump. Had the Yukon towed to a local dealer and installed a new fuel pump installed.

Last weekend the Yukon died on me again in my driveway. Had the Yukon towed to a local dealer and first though was the fuel pump went bad (Turn the key and didn't hear the fuel pump pressureize.)

Get a call later from the mechanic telling me its the connector to the fuel pump that went bad. He told me that from the looks of it, the connector should have been replaced at the time of the fuel pump.

Later find out that there is a DOCUMENT # 1619085 from GM that states to replace this connector when replacing the fuel pump.

Have you heard of this document?

I want to be able to go back to the dealer that installed the fuel pump and see if they will cover the labor cost. The part itself is $65. Labor is $300.

Thanks for your time.

Todd

'97 Yukon SLT

GM-Tech · October 6, 2005

I had not seen that document (see it below) but I'm well aware that when you replace the pump, you better check the wiring connections very carefully. Excessive current draw from the pump often causes overheating of the terminals and loss of a good connection. More than one tech has put a pump in only to have to pull it back apart when it still didn't work.

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Info - Replacement of Connector when Replacing Fuel Tank Module/Fuel Pump Module #04-06-04-088A - (Mar 7, 2005)

1999-2003 Cadillac Escalade

1996-2001 Chevrolet Suburban

1996-2003 Chevrolet Silverado, Tahoe

1996-2001 GMC Suburban, Yukon XL

1996-2003 GMC Sierra, Yukon

Excludes 2003 E85 Flexible Fuel Vehicles (Engine VIN Z) and Diesel Vehicles (Engine VINs F, S, Y, 1)

This bulletin is being revised to expand on the involved vehicles and model years. Please discard Corporate Bulletin Number 04-06-04-088 (Section 06 - Engine).

Analysis of returned parts has determined that any residual damage to the connector may result in a voltage drop across the module and can lead to repeat failures. Therefore, GM Engineering is advising technicians to replace the connector anytime the Fuel Tank Module/Fuel Pump Module is replaced.

Important: Not all vehicles were built with the Metri-Pack 150 Connector. Refer to the diagrams for identification of the connectors. This bulletin ONLY applies to vehicles equipped with the Metri-Pack 150 Connector. If the vehicle is equipped with the GT 280 Connector, disregard this bulletin.

FIGURE Metri-Pack 150 Connector©

FIGURE GT 280 Connector©

Notice: Do not insert test equipment probes (DVOM, etc.) into the connector. The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor connection, which will result in a system failure. To check the integrity of the new splice, the appropriate test probe for this terminal is a Gray J 35616-2A. Do not use paper clips or other substitutes to probe terminals. Using a larger terminal test adapter will damage the terminal.

Important : It is important to use the splice sleeves provided with the connector due to the exposure to moisture. Refer to Splicing Copper Wire Using Splice Sleeves in SI (SI Document ID 303648) for proper splicing procedures.

Parts Information

Part Number

Description

88988598

Connector - Fuel Pump

Parts are currently available from GMSPO.

Warranty Information

For vehicles repaired under warranty, use:

Labor Operation

Description

Labor Time

L1200

Sender and/or Pump Assembly, Fuel (Tank Unit) - Replace (2000-2002 model year vehicles)

Use Published Labor Operation Time

L1228

Sender/Pump Assembly, Fuel (Tank Unit) -- Replace (1996-1999 model year vehicles)

Add:

To Replace Connector

0.1 hr

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these 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 your GM dealer for information on whether your vehicle may benefit from the information.

WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION

toddski · October 6, 2005

I had not seen that document (see it below) but I'm well aware that when you replace the pump, you better check the wiring connections very carefully. Excessive current draw from the pump often causes overheating of the terminals and loss of a good connection. More than one tech has put a pump in only to have to pull it back apart when it still didn't work.

-----------

Info - Replacement of Connector when Replacing Fuel Tank Module/Fuel Pump Module #04-06-04-088A - (Mar 7, 2005)

1999-2003 Cadillac Escalade

1996-2001 Chevrolet Suburban

1996-2003 Chevrolet Silverado, Tahoe

1996-2001 GMC Suburban, Yukon XL

1996-2003 GMC Sierra, Yukon

Excludes 2003 E85 Flexible Fuel Vehicles (Engine VIN Z) and Diesel Vehicles (Engine VINs F, S, Y, 1)

This bulletin is being revised to expand on the involved vehicles and model years. Please discard Corporate Bulletin Number 04-06-04-088 (Section 06 - Engine).

Analysis of returned parts has determined that any residual damage to the connector may result in a voltage drop across the module and can lead to repeat failures. Therefore, GM Engineering is advising technicians to replace the connector anytime the Fuel Tank Module/Fuel Pump Module is replaced.

Important: Not all vehicles were built with the Metri-Pack 150 Connector. Refer to the diagrams for identification of the connectors. This bulletin ONLY applies to vehicles equipped with the Metri-Pack 150 Connector. If the vehicle is equipped with the GT 280 Connector, disregard this bulletin.

FIGURE Metri-Pack 150 Connector©

FIGURE GT 280 Connector©

Notice: Do not insert test equipment probes (DVOM, etc.) into the connector. The diameter of the test probes will deform most terminals. A deformed terminal will cause a poor connection, which will result in a system failure. To check the integrity of the new splice, the appropriate test probe for this terminal is a Gray J 35616-2A. Do not use paper clips or other substitutes to probe terminals. Using a larger terminal test adapter will damage the terminal.

Important : It is important to use the splice sleeves provided with the connector due to the exposure to moisture. Refer to Splicing Copper Wire Using Splice Sleeves in SI (SI Document ID 303648) for proper splicing procedures.

Parts Information

Part Number

Description

88988598

Connector - Fuel Pump

Parts are currently available from GMSPO.

Warranty Information

For vehicles repaired under warranty, use:

Labor Operation

Description

Labor Time

L1200

Sender and/or Pump Assembly, Fuel (Tank Unit) - Replace (2000-2002 model year vehicles)

Use Published Labor Operation Time

L1228

Sender/Pump Assembly, Fuel (Tank Unit) -- Replace (1996-1999 model year vehicles)

Add:

To Replace Connector

0.1 hr

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these 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 your GM dealer for information on whether your vehicle may benefit from the information.

WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION

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