Real ChatGPT answer · index seedBJap4y1plhUcompleteAutomotive · trucks and SUVscommercial

My mechanic is working on my GMC Sierra diesel right now and needs to know the bulletin numbers for the latest fuel pump failures

ChatGPTgpt-62 queries11/1/2026
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Fan-out diagram

The searches the AI actually ran for this prompt.

SEED QUERY
My mechanic is working on my GMC Sierra diesel right now and needs to know the bulletin numbers for the latest fuel pump failures
2 real searches · 1 real-search pass
latest GM GMC Sierra Duramax diesel high pressure fuel pump failure service bulletin number 2026 6.6L L5P CP4Google ↗
OBSERVEDReason
GM service bulletin Sierra Duramax fuel pump failure bulletin 6.6L LML L5P L5DGoogle ↗
OBSERVEDReason

Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.

Query classes

Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.

ChatGPT real searches (2)
Short factOther / navigationalComparisonConsequenceReason100%DefinitionInstructionYes / no

Classes come from the query-classifier (a local Laya model). 1 of 2 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.

Searches and sources

ChatGPT2 real searches · gpt-6
latest GM GMC Sierra Duramax diesel high pressure fuel pump failure service bulletin number 2026 6.6L L5P CP4 Google ↗
GM service bulletin Sierra Duramax fuel pump failure bulletin 6.6L LML L5P L5D Google ↗
  1. Service campaign N262558690 · open.wenmarpro.com
  2. Service Update · static.nhtsa.gov
  3. 16NA102 Service Bulletin/Repair Instructions · oemdtc.com

Queries

2 queries · click a column to sort
Query / typeSearchIntentQuery classRouting formatClusterFreq ↓Weight
latest GM GMC Sierra Duramax diesel high pressure fuel pump failure service bulletin number 2026 6.6L L5P CP4
OBSERVED
Google ↗
AI Mode ↗
—Reason——1x
of 1
GM service bulletin Sierra Duramax fuel pump failure bulletin 6.6L LML L5P L5D
OBSERVED
Google ↗
AI Mode ↗
—Reason——1x
of 1