Q: car won't start after sitting for three weeks

asked by on

The car wouldn't start (or even turn over) after sitting for three weeks, when I tried to jump it the horn blared until I pulled the fuse for it. The lights won't turn on either.

My car has 200000 miles.
My car has an automatic transmission.

In all probability the battery is dead. The reason the horn blared during the jump start attempt is the "restoration of power" is interpreted by the car’s security system computer as an attempt to "steal" the car. That’s just the way the security system is designed. Depending on the age and condition of the battery (the battery must be tested using a load tester), you may need a new battery. If you know the battery is more than 5 years old, that is if it is at about the end of its service life anyway, I would recommend that you request a battery replacement which will likely resolve your issue. If a new battery doesn’t resolve the no start, the mechanic will still be right there to get the issue diagnosed. If, on the other hand, the car’s battery is less than 5 years old, request a no start diagnostic(https://www.yourmechanic.com/services/car-is-not-starting-inspection). You may still need, and end up with, a new battery and the end point of either service will be identical: the mechanic will get your car running, and in all events will verify that your car’s charging system is properly charging your battery. If you have additional concerns, please let us know.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. car won't start after sitting for three weeks

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: My car cut off on the highway and wont start back up.

Good question. PO443 Code is an HVAC code. To your question, no. When a mechanic hears that a car shut off while driving it is because the alternator quit working. Your battery however, may be dead too. You can take...

Q: Power surge after I use the brakes

The issue you describe can be very dangerous for you and your passengers. I have read many instances of other owners having similar issues, some of which have caused accident that have led to injury(according to their statements). It looks...

Q: Is the R18 transmission in the LHD car different from the one in the RHD.

Hi there. If your transmission has a floor mounted shifter then there would be no change at all. If the transmission in your vehicle has a column shifter the the linkage would be different. Otherwise, the transmission are the same...

Related articles

What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.