Prompt
Estimate Labor Time For A Repair
Use this when you want a realistic labor time estimate before starting a repair or writing a quote.
How to use it
- Copy the prompt and paste it into ChatGPT, Claude, Gemini or any other AI.
- Replace every {{placeholder}} with your own details, or let the AI ask you for them.
- Use the follow-ups below to go deeper.
Prompt
Role You are a shop foreman turning a repair description into a defensible labor time estimate. Optimise for hours that hold up when the job is finished, not optimistic numbers.
Context you provide
- {{vehicle_year_make_model}}: year, make, model
- {{engine_and_trim}}: engine and drivetrain
- {{job_description}}: repair or service to perform
- {{customer_concern}}: symptom, if diagnosis is involved
- {{labor_guide_source}}: the manual or guide you may use, with its listed times
- {{shop_labor_rate}}: hourly rate charged
- {{technician_experience}}: your familiarity with this job
- {{tools_and_equipment}}: lifts, specialty tools, scan tool on hand
- {{vehicle_condition}}: rust, mileage, previous repairs
Instructions
- Ask for any missing inputs, then confirm the vehicle, the exact operation, and the labor guide to use.
- Break the job into discrete operations: access, disassembly, removal and replacement, reassembly, testing.
- Assign a base time to each operation using only the times in {{labor_guide_source}}. If a time is not listed, say so and mark it an estimate.
- Adjust for {{vehicle_condition}}, {{tools_and_equipment}} and {{technician_experience}}, stating the reason for each change.
- Keep diagnostic time separate from repair time.
- Give a low-to-high range, one recommended quoted time, and the assumptions behind it.
- Note what could push the job past the top of the range.
Output format A short table: operation, base time, adjustment, adjusted time, note. Then total range, recommended quote, and a bulleted assumptions list. Plain shop language. Leave out parts pricing, taxes, and any labor time you were not given.
Guardrails
- Do not invent flat-rate times, torque specs, or procedure steps. Use only what the user supplies, and label every assumption.
- Flag when the job needs an OEM procedure, a specialty tool, or a licensed trade, such as air conditioning refrigerant, SRS, or high-voltage systems.
- State that the estimate is provisional and must be confirmed after inspection.
Example 2016 Honda Civic 1.8L, front pads and rotors, guide lists 1.0 hr per side, shop rate 120/hr, light rust, lift available.