Q: Q: Car starting intermittently.

asked by on

I need an inspection. Sometimes my car will start and sometimes it will not.

Intermittent no start conditions can be among the most difficult to diagnose because of their irregular nature.

There are two things that come to mind. Number one: A faulty starter will cause a condition similar to what you are describing. Starters are motors that run on electromagnets. The starters are usually mounted in high heat areas and get used every time you start your car. Heat and high usage are tough on electrical components, so starter failures are common.

Number two: Theft deterrent systems. Most cars now a days have a built in factory theft deterrent system. This system is tied to your cars computer system. The key has a built in microchip that is programmed to your vehicles ignition switch. If the switch fails to recognize the key or the key loses is programming, your car thinks you are trying to steal it so the computer will not let it start. Unfortunately this is becoming common also.

A technician should be able to inspect both of these and determine the cause of your problem.

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. Q: Car starting intermittently.

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: Car: 2008 BMW 328i - 2 days ago I accidentally drove right over a speed bump, it was loud. Immediatly the car started to make a

The noise you are describing is marked and thus the origin will be obvious to a mechanic on inspection. There may be evidence of direct impact for instance. Among the components closest to the ground are exhaust system components. The...

Q: Load woo noise rear passenger side. Car has new rear tires, and rides smooth. Is it a bad bearing?

I suggest having a mechanic ride with you and see if it is one of the rear tires or the bearings are noisey. I suspect the bearing is noisey unles noise started right after the new tires were installed. ...

Q: Car tries to start, but won't

There are a lot a possibilities for the engine not starting. It could be anything from a bad fuel pump, crank sensor, wiring problem, or a mechanical problem. A qualified mechanic from YourMechanic can come out to scan your engine's...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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.