Brief information on vehicles exhibiting diagnostic trouble code P0420 catalyst system low efficiency bank one
Chevrolet technical service bulletin 161001 for 1999 Chevrolet Astro and 1999 GMC Safari.
- Bulletin number
- 161001
- Component
- Engine and engine cooling: exhaust system: emission control: catalytic convertor
- Summary
- Brief information on vehicles exhibiting diagnostic trouble code p0420 catalyst system low efficiency bank one. Tt
Owners of these vehicles have filed 16 complaints in the engine category.
Vehicles covered
- Chevrolet Astro 1999 1999
- GMC Safari 1999 1999
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