Skip the auto shop - Our mechanics make house calls

Q: Car starts on its own. Just changed the starter, the solenoid is okay, and I checked the wiring.

asked by on

Just changed the starter. I go to connect the battery and my truck starts on its own. The solenoid is good. Check the wiring and I haven't seen anything that could be touching. What could be the problem

Hello. Either the two big terminals are touching each other on the starter solenoid or the starter solenoid is shorted internally. You should check to make sure the two large terminals are not touching. If you would like to have an expert scope out this problem for you, a certified professional from YourMechanic can come to your car’s location to diagnose the relevant electrical circuits and guide you through a repair.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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
  • Home
  • Questions
  • Car starts on its own. Just changed the starter, the solenoid is okay, and I checked the wiring.

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: Could this be an alternator issue?

If the charging system was working properly the voltage would of been steady after disconnecting the jumper cables. The battery should be charged and tested first or it could be shorted causing the charging system to short out. If battery...

Q: Starting problems

The PATS system or passive anti theft system is not turning off the arming of the system and may need to be reprogrammed as per the technical bulletin issued by the manufacturer. I recommend looking on the dash and if...

Q: No crank no start at witts end

This sounds like potentially a faulty starter solenoid. Try checking for power to the solenoid. The clicking sound is common sometimes when the battery is weak, but is also a common sign of a faulty starter solenoid. Have a qualified...

Related articles

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...
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...
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.