Campaign - Possible Fuel Sender Port Fracture

Subject:
Service Update for Inventory and Customer Vehicles-Fuel Sending Unit Port Fracture-Extended Start/Sluggish Acceleration/Check Engine Light-Expires with Base Warranty
# 07005 - (02/16/2007)

Models:
2007 Buick Rainier
2007 Chevrolet TrailBlazer
2007 GMC Envoy
2007 Saab 9-7X

THIS SERVICE UPDATE INCLUDES VEHICLES IN DEALER INVENTORY AND CUSTOMER VEHICLES THAT RETURN FOR ANY TYPE OF SERVICE, AND WILL EXPIRE AT THE END OF THE INVOLVED VEHICLE'S NEW VEHICLE LIMITED WARRANTY PERIOD.

Purpose

This bulletin provides a service procedure to determine if a fuel tank sending unit requires replacement on certain 2007 Buick Rainier, Chevrolet Trailblazer, GMC Envoy, and Saab 9-7X vehicles. The fuel tank sending unit on these vehicles may have a fractured internal port. A fractured port will not deliver fuel to the engine at the designed pressure. If this were to occur, it could result in an extended start, sluggish acceleration, and/or the illumination of the check engine light.

This service procedure should be completed as soon as possible on involved vehicles currently in dealer inventory and customer vehicles that return to the dealer/retailer for any type of service during the New Vehicle Limited Warranty coverage period.

Vehicles Involved





A list of involved vehicles currently in dealer inventory is attached to the Administrative Message (GM US), Dealer Communication (Canada), or IRIS (Saab U.S.), used to release this bulletin. Customer vehicles that return for service, for any reason, and are still covered under the vehicle's base warranty, and are within the VIN breakpoints shown, should be checked for vehicle eligibility in the appropriate system listed below.

Important:
Dealers are to confirm vehicle eligibility prior to beginning repairs by using the system(s) below. Not all vehicles within the above breakpoints may be involved.

-- GM dealers and Canadian Saab retailers should use GMVIS.

-- US Saab dealers should use IRIS On-Line Recall/Campaign Inquiry.





Parts Information - GM and Saab Canada Only

Parts required to complete this service update are to be obtained from General Motors Service Parts Operations (GMSPO). Please refer to your "involved vehicles listing" before ordering parts. Normal orders should be placed on a DRO = Daily Replenishment Order. In an emergency situation, parts should be ordered on a CSO = Customer Special Order.





Parts Information - Saab US Only

Parts required to complete this service update are to be obtained from Saab Parts Distribution Center (PDC).

Service Procedure

Tools Required

J 45722 or equivalent

1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in SI.





(1) Fuel Tank Label
(2) fuel Tank
(3) Rear Axle

2. Locate the fuel tank label (1), which is on the backside of the fuel tank (2) below the fuel tank filler neck.





3. Inspect the fuel tank for a white "X" on the fuel tank and/or a green "C" on the barcode.

^ If a white "X" on the fuel tank and/or a green "C" on the barcode is found, the fuel sender assembly does not require replacement. No further action is required.

^ If a white "X" on the fuel tank and/or a green "C" on the barcode is not found, proceed to Step 4 for additional inspection.





4. Compare the fuel tank serial number printed on the fuel tank label (1) to the fuel tank serial number (sequencing) range shown.

^ If the serial number of the tank is not within the ranges above, lower the vehicle. No further action is required.

^ If the serial number of the tank is within the ranges above, remove and replace the fuel sender assembly. Proceed to Step 5 in this bulletin.

5. Remove the fuel tank from the vehicle. Remove the fuel sender assembly from the fuel tank. Refer to Fuel Sender Assembly Replacement in SI.

Notice:
Ensure that the fuel level sensor pigtail wires are routed through the anti-chafing conduit of the fuel sender assembly to avoid damaging the fuel level sensor pigtail wires. Route the fuel level sensor pigtail wires through the anti-chafing conduit the same way the wires were routed in the old fuel sender assembly.

6. Remove the fuel level sensor from the old fuel sender assembly and install it to the new fuel sender assembly. Refer to Fuel Level Sensor Replacement in SI.

7. Install the fuel sender assembly into the fuel tank and install the fuel tank. Refer to Fuel Sender Assembly Replacement in SI.

8. Lower the vehicle.

Claim Information - GM and Saab Canada Only





For vehicles repaired under this service update, use the table.





Claim Information - US Saab Only





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