What actually supports replacement?
Compare the full report with other engine, leak and sensor findings. Keep a missing result distinct from an inconclusive test or one that does not support replacement.
GoTech’s diagnostic evidence guide →2006–2007 Chevrolet Malibu · exact 2.2L L61 engine
Before a converter: the finding, the assembly, the complete work.
Understand what supports the repair—and whether the proposal addresses more than a part name.
GM 10134C · September 2013 ↗Historical condition and work reference; P0420 alone is not a diagnosis
WHAT DO YOU NEED TO UNDERSTAND?
YOUR NEXT DECISION
What result supports the proposed converter?
A code, interpreted test and parts quote are different evidence.
Start with the actual result behind the recommendation.
Continue with this question →
Reading context only; no finding is added.
Does this exact Malibu reference fit?
Optional: compare an existing vehicle or service record. “2.2L” alone does not establish L61. No VIN is collected or checked here.
Exact identifiers remain unknown. Conditional background reading only.
One useful question for the repair discussion
Original source, coverage history and missing authority
September 2013 revision C supersedes 10134B to add the 2009 LAT hybrid branch. That revision does not broaden this page’s 2006–2007 L61 scope. The original public source was rechecked 30 October 2026. A bounded search has not established a later revision; this does not certify current service status.
Original coverage was 10 years/120,000 miles, whichever first, from in-service, with qualifying GM dealer repairs and a separate vehicle-eligibility check. Ordinary 2006–2007 coverage is historical in 2026. An old letter does not establish a diagnosis or a present free repair.
Manufacturer copyright remains. This page supplies original explanation and links, not a reproduction of GM procedures or figures. Complete current methods, actual fitment, qualified full-chain review and real-vehicle validation remain missing.
Read the original GM bulletin ↗