Sort a $4,288 dealer repair estimate into needed work and likely upsells with ChatGPT
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- by Cord Silverstein (LinkedIn)
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Evidence: Described by posterThe person describes what happened in words, without screenshots or video.
Context: The '$3K+' saving in the post is ChatGPT's estimate; the post doesn't say what work was finally done or paid for.
Outcome
Cord Silverstein uploaded a dealer's $4,288 estimate for a 2019 Honda Pilot, including a vague photo labelled 'leaking tensioner', and asked ChatGPT to act as a mechanic. It said the coolant flush was legitimate, to ask for photo proof of the timing belt and tensioner leak, that the shock absorbers looked like an upsell because the photo showed a new part, and that alignment was only needed if the shocks were bad. It also explained Honda's service intervals and drafted a polite pushback email.
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Prompt Original prompt
Exact prompt as published in the source.
Act as a car mechanic expert. My wife’s 2019 Honda Pilot has 73,599 miles. Do we really need this work or is the dealer upselling us?
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Our rewrite with extra checks. The poster didn't test it.
Run this task now, exactly as written below. Everything you need is here, so start straight away and only stop if something required is missing or a rule below tells you to. Goal: Go through my repair estimate line by line and tell me which items look necessary and which need proof or a second opinion. Fill in before running: - Car make, model, year and mileage: [DETAILS] - The full estimate and any photos the shop sent: [UPLOAD] - When the listed items were last done, if I know: [HISTORY] Safety first: anything touching brakes, steering, airbags, fuel lines or lifting the car is a job for a qualified mechanic unless I confirm I have the tools and experience. Say so clearly. Rules: - Check each item against the manufacturer's service schedule for my mileage and say where you found it. - Sort items into: do now, ask for proof, second opinion, or can wait. - Point out vague wording or photos that don't show the actual fault. - Draft a short, polite email asking for the proof or changes. - Check facts that can change (prices, opening hours, dates, availability, rules) against the official source, and tell me anything you couldn't verify. - Never mark a brake, steering or tyre safety item as 'can wait' without saying it needs a mechanic's check. Output: A table of items with your verdict and reason, plus a ready-to-edit email to the shop. You'll know it worked when: I know which items to approve today and exactly what to ask the shop about the rest. Before you finish: re-read my goal and constraints, check your answer against each one, and list anything you assumed or couldn't confirm.
Source
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