Start by listening
The sound your car makes when you turn the key is the single best clue. Silence, a click, rapid clicking, slow cranking, and normal cranking without starting each point to different problems.
Before anything else, check that the car is in Park (or the clutch is pressed), and that your key fob battery isn't dead on push-button cars.
No sound, no lights
If nothing happens and the dash stays dark, the battery is likely completely dead or a battery cable is loose or corroded. Look for white or green buildup on the terminals.
Clicking but no crank
Rapid clicking usually means a weak battery that can power the dash but not the starter. A single loud click with a strong battery often means a failing starter motor or starter solenoid.
Cranks but won't start
If the engine turns over normally but never fires, the problem is usually fuel, spark, or security:
- Failed fuel pump or clogged fuel filter
- Bad crankshaft position sensor
- Ignition coil or spark plug failure
- Anti-theft immobilizer not recognizing the key
- Simply out of gas (it happens!)
Why Texas heat makes it worse
Summer temperatures in DFW regularly push engine bays past 140°F. Heat accelerates battery failure and can cause fuel pumps and sensors to fail intermittently — so a car that won't start on a hot afternoon may start fine the next morning, until it doesn't.
Get help wherever you're stuck
Aaron's Auto Repair is open 24 hours. We'll come to your driveway, office garage, or roadside, test the battery, starter, and fuel system, and in most cases get you running on the spot. Call 469-262-5048.