All Investigations » Investigation PE02066

  Defect Investigation of Engine Stall Due To Fuel Starvation

Investigation of Engine Stall Due To Fuel Starvation

Subject: Engine stall due to fuel starvation
Components covered:
  • Gasoline fuel system
  • Fuel pump
  • Fuel system
  • Fuel pump
Investigations Summary: This investigation was opened on Sep. 6, 2002. It was closed on Nov. 3, 2003. Odi opened pe02-066 to evaluate the scope and consequence of engine power-loss due to fuel starvation induced by in-tank modular fuel pump strainer restriction. The subject pumps use an external sock strainer to filter fuel flowing to the pump inlet. This filter can sometimes become clogged, resulting in a reduced flow of fuel to the engine. Gm has subsequently modified the strainers to reduce this restriction. Analysis of the odi complaint database shows that despite these restrictions, the subject vehicles stall at a rate that is comparable to those of many peer vehicles. Additionally, none of the relevant warranty repair rates exceed 1% at 36 months of exposure. One related crash involves a stalled vehicle that was rear-ended on the roadway, while the remainder involved minor collisions or scrapes. The sole injury consisted of bruising from a low speed frontal crash. Given these circumstances, further expenditure of agency resources is not justified in this matter. The preliminary evaluation is therefore closed. The closing of this investigation does not constitute a finding by NHTSA that no safety-related defect exists. The agency will take further action in the future if warranted.
Vehicles Affected by this investigation:
  • 2000 Chevrolet Cavalier
  • 2000 Chevrolet Malibu
  • 2000 Chevrolet S10
  • 2001 Chevrolet S10
  • 2000 GMC Sonoma
  • 2001 GMC Sonoma
  • 2000 Oldsmobile Alero
  • 2000 Pontiac Grand Am
  • 2000 Pontiac Sunfire

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