Fast • Reliable • At Your Location
(210) 427-1672
Call or Message
We scan the vehicle and troubleshoot the cause of check engine lights, stored codes, pending codes, and warning messages.
Testing for battery, starter, alternator, fuel delivery, relays, fuses, wiring, and sensor problems that can keep a vehicle from starting.
Diagnosis for rough idle, shaking, misfires, hesitation, stalling, loss of power, and poor engine performance.
On-site testing for starting and charging system issues so you know whether the problem is battery, starter, alternator, or wiring related.
Sensor, wiring, ground, fuse, relay, and module-related problems diagnosed at your location.
We come to your home, work, or roadside location in the San Antonio area so you can avoid towing when possible.
Check engine light • Car will not start • Engine cranks but will not fire • Rough idle • Misfire • Stalling • Loss of power • Battery light • Charging system problems • Starter issues • Sensor faults • Fuel system problems • Electrical faults • Poor acceleration
A trouble code gives a starting point, but it does not always tell you exactly what part is bad. SHIELD Auto LLC uses diagnostic testing and real-world experience to help identify the actual cause before you spend money on unnecessary parts.
Our goal is to help you make a smart repair decision with clear information, honest guidance, and convenient mobile service.
Supporting the greater San Antonio area with reliable mobile automotive care.
We provide professional mobile mechanic services with over 15 years of experience. Whether at home, work, or roadside, we deliver honest pricing, fast turnaround, and dependable diagnostics.
Phone: 210-427-1672
Email: service@shieldautollc.com
Hours: 8 AM – 8 PM, Monday through Friday