Skip the auto shop - Our mechanics make house calls

Q: Alternator/Battery

asked by on

I just recently got my alternator changed & got a new battery put in.. But when I try to put the connectors on to the battery, it doesnt let me & it sparks up.. Nothing in the car is on.

I think something got put in backwards or connected improperly but I dont know what.

I know you cant tell me much cause you're not looking directly at it but I just need an idea of what could be wrong.

My car has 180000 miles.
My car has an automatic transmission.

A: Hello. Make sure you are connecting the pro...

Hello. Make sure you are connecting the proper cables to the proper terminals (i.e. red cable to the positive bigger terminal and black to the negative terminal). The cables will naturally spark a little at times when you are connecting them since there are electrical amperage loads in your car which are automatically re-starting when reconnecting the circuit. Take a look at our article, "How to Change Battery Cables," for more help on this subject.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Truck won't stay running

One of the hardest problems to diagnose are electrical gremlins. Without being there to physically inspect your 97 Dodge Ram pickup, it's hard to give you a perfect diagnosis. However, when the battery and alternator are good, I tend to...

Q: Nothing turns on the car

From what you've described you may just have a bad battery connection. You should first have the vehicle jump started to see if it stays running and look for any lights that may have been left on. Once the jumper...

Q: how much does it cause to diagnose a car

Hi there. Before we can get you a quote, we need to know what is being diagnosed. Quotes cannot be generated via the ask a mechanic portal. I am forwarding your request to customer service. Please have your vehicle make,...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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.