Affected vehicles:

Affected vehicles: 2000-2001 Chevrolet 1500 Series Suburban and 2000-2001 GMC 1500 Series Yukon XL

Situation: Certain affected vehicles were built with fuel module reservoir assemblies that contain fuel pump wires and/or connectors that may overheat under certain operating conditions. Fuel pump wires that overheat may become exposed and result in one or more of the following conditions: 1) if the ignition circuit wire is exposed and shorts to ground, the fuel pump fuse will blow, disabling the fuel pump and causing an engine stall or no-start condition; 2) if the ignition circuit or ground wire is exposed and shorts to the fuel level sender card wires, inaccurate fuel level readings may result; 3) if sufficient heat is conducted to the pass-through connector, a hole in the connector may result, which may cause a Service Engine Soon light to be illuminated during the emission system diagnostics routine. Fuel vapor, and in some cases liquid fuel, may leak out of the fuel tank through the hole in the connector body. If a sufficient amount of fuel were to leak out and if an ignition source were present, a vehicle fire could occur.

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