Q: Won't start auxilary power

asked by on

My check engine light came on a while ago. And my car periodically stalls - mostly when it rains. One time when I was using auxiliary power there was a clicking noise, and then the power went off. Then it came back on. But now the car won’t start at all. It won’t turn over when trying to start it. I never had a problem with the starter and my battery is in great shape. Do you have any idea what's wrong? How can this be fixed?

Hello. There are several possibilities for what is causing the problem that you are having. There could be a problem with the camshaft sensor or crankshaft sensor. These sensors read the position of the camshaft and crankshaft in order to communicate with the powertrain control module (PCM) about proper engine timing. If they are not working properly, the PCM won’t know the proper engine timing and this may prevent the car from starting.

It is also possible that there is a problem with the coolant temperature sensor. If the coolant temperature sensor is giving a false reading this may cause the PCM to give the wrong amount of fuel at startup or when the car is running. This may prevent the car from starting or create a stalling condition.

I would recommend that you start by having the Check Engine Light checked a certified technician, like one from YourMechanic, who can pinpoint the problem and make the necessary repair.

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
  1. Home
  2. Questions
  3. Won't start auxilary power

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: Jeep shutting down below 1,000 RPMs

Your issue could have countless causes, from a vacuum leak to a faulty fuel pump. If the Check Engine Light is on, the first step is to retrieve the associated diagnostic trouble codes (DTCs). These codes serve as a starting...

Q: Car engine sounds kind of loud and when I drive faster it gets louder. But the sound Will go away some times .

The noise could be exhaust related although there are other possibilities such as noisy bearings on engine accessories and pulleys. Exhaust systems can fail internally as baffles corrode over time. The poor engine running condition when cold could be caused...

Q: What does hot air below the driver' feet indicate?

Hi there: If the heater is not on and the vents are blowing hot air, it's possibly caused by a malfunction of the heater motor relay or the heater core. What's most likely happening is that there is an electrical...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.