Skip the auto shop - Our mechanics make house calls

Q: I unhook the positive cable to the battery to stop the engine from running did it affect any of the electrical components or anyth

asked by on

The car has electrical issues and electrical problems the motor you couldn't shut it off it will not go into Park . I took the positive cable off in order to try to shut the car off I couldn't get to the negative post . The car over heated and started smoking. Do you think that there was any serious damage done . It's off now putting the positive cable back on put the vehicle it in park. And shut the engine off

My car has 35000 miles.
My car has an automatic transmission.

A: You may have caused electrical voltage spik...

You may have caused electrical voltage spikes in the system. If you could not get the vehicle to go in park, then you may have a transmission or computer system failure and can be covered under one of the recalls that may be active on this vehicle. You should contact the local dealer and advise them of your vehicle will not go in park and want recalls done. Do not mention that you disconnected the battery while if was running or you may void the warranty. There may be as many as three recalls active for the electrical system and transmission on this vehicle so get in touch with the dealer.

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

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: The emergency brake activates itself, doesn’t feel safe

Talk to your dealer to check if your vehicle qualifies for recall RC-R01-15 to reprogram your transmission and engine control modules. Since your parking brake is electronic, it may be fixed with this recall. The dealer will verify your vehicle...

Q: Car got hot now turns over but act like no compression an blows starter relay

Hello there, this sounds like there may be a few different issues going on. The starter relay or fuse will only blow if the starter is drawing too much power, or if there is a short to power. Likely causes...

Q: Error code P144C.

This code refers to the purge valve on the charcoal canister, this valve is supposed to be closed until the pcm opens it, if the computer doesn't see flow through the valve when is should it will set this code....

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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.