This tool provides general guidance — not professional mechanical advice. Always have a qualified mechanic inspect your vehicle before making any repair decisions.
#1 Most Likely
Engine will not start
Typical Cost
$100 – $1,506
Battery replacement typically costs $150–$350. Starter replacement may cost $300–$700. Fuel pump replacement typically costs $1,247–$1,506 per industry repair data (2024). Urgency reflects worst-case cause. Cost varies widely by cause. Prices vary by vehicle make and region.
Wide range because the exact repair depends on what's causing the symptom.
- Dead or low battery
- Failed starter motor
- Empty fuel tank or failed fuel pump
- Failed ignition switch or relay
- Security system or immobilizer fault
An engine that will not start at all may indicate a dead battery, a failed starter motor, an empty fuel tank, a failed ignition switch, or a security system fault. The cause can range from a simple fix to a significant mechanical failure, and the urgency depends on which system has failed.
What a mechanic will check
A mechanic will likely test battery voltage and cranking amps, check the starter motor function, verify fuel pressure, and retrieve fault codes. They may also check for a security or immobilizer system fault that can prevent starting.
What to say to your mechanic
“My car will not start at all. Can you test my battery, check whether the starter is engaging, verify fuel pressure, and pull any fault codes to tell me what may be preventing it from starting? I want to understand what we may be dealing with before deciding how to proceed.”
Script based on industry repair procedures
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