| Quick facts | Answer |
|---|---|
| Cost range | $125-$183 for the diagnosis; repairs run $100-$700 depending on the cause |
| Time | About one hour of labor for most no-start diagnoses |
| Who's qualified | A trained auto repair technician; ask for proof of insurance and relevant certifications (e.g., ASE for auto repair). |
Gretna, LA: what's different here
Gretna sits in Jefferson Parish, Louisiana, just across the river from New Orleans - about 6 miles and roughly an 11-minute drive via the main highway. Summers are hot and humid, with average highs of 93°F, which is hard on batteries and cooling-related no-starts. The city's low elevation and Gulf Coast location leave parts of Gretna in FEMA-designated flood zones, so flood exposure is a real concern for vehicles.
Why won't my car start in Gretna?
The most common causes are a dead battery (about 35% of no-start calls) and worn or failed starters (about 15%). Other culprits include corroded battery terminals, fuel pump failure, a bad crankshaft position sensor, or ignition switch problems. Each fault needs different testing, which is why a written diagnosis matters.
Is a mobile mechanic car won't start diagnosis worth it?
A mobile diagnosis typically costs $125-$183, while a shop tow plus diagnostic can add $150-$300 on top of the repair. Since the pro comes to you, you skip the tow when the fix is minor, like a battery. Repairs vary: a battery runs $100-$200, while a starter replacement totals about $250-$700.
What should a car won't start diagnosis include?
Expect electrical testing, starter and battery checks, and scan-tool diagnostics. A proper diagnosis ends with a written finding, because the exact cause could be the battery, starter, sensor, fuel delivery, ignition, or security system. Ask the pro to credit the diagnostic fee toward the repair if you approve the work.
Can a handyman diagnose a car that won't start?
No-start diagnosis involves electrical testing and scan-tool work, so it's a job for a trained auto repair technician rather than an unlicensed general handyman. Before work begins, ask the pro for proof of license and insurance.
What to do next
- Note exactly what happens when you turn the key - clicking, no crank, or crank-no-start - since the sound helps triage the fault.
- Check the battery terminals for corrosion before the visit; corrosion is a common no-start cause.
- Ask the pro for a written no-start diagnosis and whether the diagnostic fee is credited toward the repair.
- Request a quote that separates the diagnosis fee from the repair, since a battery ($100-$200) and a starter ($250-$700) differ widely.
- Call (504) 395-8968 or email [email protected] for a free quote from an independent, insured mobile mechanic.
NOLA Mechanic is a free referral service: an independent contractor does the work and may pay us a referral fee. You never pay us anything.



