GoTechTHE WORKSHOPAll P0420 guidance

2010–2011 Chevrolet Equinox · exact 2.4L LAF engine

What supports the converter recommendation?

Use the actual diagnostic result to decide what needs checking before parts—and what to verify afterward.

GM 15810 · Revision 03 · July 2018 ↗Historical condition reference; P0420 is not named as a replacement trigger

WHAT DO YOU NEED TO UNDERSTAND?

YOUR NEXT DECISION

What does the diagnostic report actually establish?

A code, a quote and a diagnostic finding 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 Equinox reference fit?

Optional: compare an existing vehicle or service record. “2.4L” alone does not establish LAF. No VIN is collected or checked here.

Exact identifiers remain unknown. Conditional background reading only.

FWD/AWD remains unknown. The complete applicable installation source still needs identifying.

One useful question for the repair discussion

Keep the diagnosis connected to the work.

01 / DIAGNOSIS

What evidence matters next?

Compare the full scan with engine, leak and identified-sensor findings. Request the actual test conditions and interpreted result; missing evidence cannot become a failed part.

GoTech’s diagnostic evidence guide →
02 / REPAIR

What must match the proposal?

The exact assembly, drivetrain, emissions/application record, supplied hardware and complete procedure need confirmation alongside the diagnosis.

Parts and work requirements →
Historical parts reference

GM’s 2018 document lists converter 23406152, exhaust-flex gasket 22741672 and exhaust-manifold gasket 24505057. These identify the historical package only. A current manufacturer application/supersession and included-hardware check are still required; no purchase-ready fitment is provided.

03 / VERIFY

What changed after the work?

Compare the original complaint, dated work, later code statuses and readiness. Record an incomplete or unsuccessful result and preserve later recurrence.

GoTech’s outcome comparison →
Original source, coverage history and missing authority

July 2018 Rev.03; notice DCS4807 dated 26 July supersedes 15810-02 for a labor-time revision. Original public source rechecked 29 October 2026; no newer revision was established by the bounded search. That does not establish current service status.

The original special coverage was 10 years/120,000 miles, whichever first, from in-service. Ordinary 2010–2011 coverage is historical in 2026. GM required its vehicle-involvement record to be checked; no current eligibility lookup or free-repair promise is supplied here.

The 2012–2013 LEA oil-consumption reference is a different application. Public access does not authorize copying GM procedures or figures; this page provides original explanation and source links. Current service methods, actual fitment and qualified full-chain review remain missing.

Read the original GM document and dated notice ↗