Q: My car wouldn't start one day but started fine the next.

asked by on

I tried to start my car, but it seemed like the battery was dead: the dash lights and accessories flashed on the first time and the starter turned over but quickly died. Nothing at all happened the next few tries. The next day, it started up fine, and I haven't had a problem since. Also, the check engine light was on before that incident and is off now.

My car has 150000 miles.
My car has an automatic transmission.

For this vehicle, the wiring harness connections on each and every module may have what is called "fretting corrosion", which will cause intermittent loss of connection in the module. A certified mechanic will have to go through each and every module that may be causing the problem and clean each connector. They will should also apply dielectric compound to stop the corrosion from returning. If excessive corrosion is found in any of the connectors then a pin or socket replacement may be necessary.

I’d recommend seeking help from a certified mechanic who can diagnose your vehicles electrical problem firsthand. From there an accurate repair can be made to ensure that this starting issue won’t come back again.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. My car wouldn't start one day but started fine the next.

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Transmission has been built but don't shift untill 4500 rpms what could be the problem

The transmission governor in the rear of the transmission may not be operating as it should to change pressures to change the gears as speed increases. Remove governor and verify the butterfly mechanism is moving in and out as it...

Q: Approximately, how long will a warranty last on a replaced or resealed valve cover gasket?

The engine valve cover gasket should last for about 8 to 12 years. If the gasket is leaking, then the PCV (Positive Crankcase Ventilation) valve is plugged up causing the engine to build up too much crankcase pressure blowing out...

Q: My car will not start I got a new stater, battery and alternate. It work for a minute then stop and now it's saying battery saver

Hello, and thank you for writing in. The battery saver mode is a function that attempts to cut various components that need a power supply while the vehicle is off. It goes into effect when the power supply to the...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...