Real ChatGPT answer · index seedg8JXdywtyOccompleteAutomotive · car repair and maintenanceinformational

My check engine light just came on and the car is shaking slightly when I idle at a stoplight. Could this be a sign of failing spark plugs, and how much do mechanics usually charge to replace them?

ChatGPTgpt-62 queries11/1/2026
Download run

Fan-out diagram

The searches the AI actually ran for this prompt.

SEED QUERY
My check engine light just came on and the car is shaking slightly when I idle at a stoplight. Could this be a sign of failing spark plugs, and how much do mechanics usually charge to replace them?
2 real searches · 1 real-search pass
spark plug replacement cost 2026 average US mechanic parts laborGoogle ↗
OBSERVEDShort fact
2026 average cost spark plug replacement mechanic labor parts US RepairPalGoogle ↗
OBSERVEDShort fact

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 fact100%Other / navigationalComparisonConsequenceReasonDefinitionInstructionYes / no

Classes come from the query-classifier (a local Laya model). 2 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
spark plug replacement cost 2026 average US mechanic parts labor Google ↗
2026 average cost spark plug replacement mechanic labor parts US RepairPal Google ↗

Queries

2 queries · click a column to sort
Query / typeSearchIntentQuery classRouting formatClusterFreq ↓Weight
spark plug replacement cost 2026 average US mechanic parts labor
OBSERVED
Google ↗
AI Mode ↗
—Short fact——1x
of 1
2026 average cost spark plug replacement mechanic labor parts US RepairPal
OBSERVED
Google ↗
AI Mode ↗
—Short fact——1x
of 1