No-crank / no-start diagnostic cost: shop vs. mobile mechanic
No-crank / no-start diagnostic: estimated U.S. average labor cost at a repair shop and with a mobile mechanic. Diagnostic time only; the repair itself is extra. Estimates, not quotes.
Average shop cost
$120
Range $50–$210 (labor)
0.5–1.5 h × $100–$139/h estimated shop labor rate
Parts not included.
Average mobile mechanic cost
$180
Range $75–$315 (labor)
Shop labor × 1.5 (mobile convenience premium)
Parts not included.
Estimate for your state or city →
What the estimate covers
Diagnostic time only: testing the battery, charging system, starter circuit, fuel and spark to find why the engine won't crank or start. The repair itself (battery, starter, sensor, wiring) is extra. Many shops charge a flat diagnostic fee instead of by the hour.
Labor hours used: 0.5–1.5 h, our own editorial estimate (not taken from a licensed labor guide).
Problem pages that use this estimate
Sourced owner-reported problems on Mechanic Notes where this is the usual diagnostic:
- 2010 Nissan Maxima: Engine won't turn over won't start
- 2010 Nissan Sentra: Engine won't start
- 2012 Dodge Durango: Engine won't turnover won't start
- 2016 Chevrolet Traverse: Battery dead
- 2017 Ford Fusion: Dead battery
- 2017 Jeep Compass: Won't start won't turn over
- 2024 Nissan Frontier: Dead battery
- 2025 Nissan Frontier: Battery completely dead
How these estimates work
- Labor hours (Mechanic Notes estimate): each job has our own editorial "typical labor hours" range. Real times depend on the vehicle, engine and condition, and are not taken from any licensed labor guide.
- Shop labor rate (assumption): $100–$139/hour, the band where about half of surveyed U.S. general repair shops put their average labor rate (PartsTech / OEC U.S. General Auto Repair Shop Survey (about 700 shops, Sept 2025), as reported by Ratchet+Wrench), scaled by your area's mean wage for automotive service technicians divided by the U.S. mean ($27.13/h; BLS Occupational Employment and Wage Statistics, May 2025, SOC 49-3023; verify on bls.gov). States and metros without wage data use the next-wider area.
- Average shop cost = typical hours × estimated shop rate. The headline number uses the middle of both ranges (or a job’s stated typical hours, where the usual job sits near the low end); the range uses low hours × low rate to high hours × high rate. Rounded to $5.
- Average mobile mechanic cost = shop labor × 1.5 (mobile convenience premium: travel and convenience are built in). This is a default assumption, not a survey result.
- Parts are not included. Parts prices vary too much by vehicle and brand to estimate honestly here; price parts separately.
Every job and area: repair cost table · estimates.json · repair cost estimator.
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