Skip the auto shop - Our mechanics make house calls

Q: What was the device that prevented my car from starting and blew a fuse? Is it safe now?

asked by on

So, my car stopped while driving it. Then it wouldn't start and only lights and radio came on. I had a mechanic friend look at it and he found a blown fuse. We used a jumper and tried to start the car. It cranked but was still struggling to start. My sister noticed smoke coming from the left side. We discovered that it was coming from two disconnected wires attached to a little black box. My friend took the device out, taped the wires with electrical tape and tried to start the car. It started easily. We replaced the fuse and now it starts. What was the device and is my car safe to drive?

My car has 98000 miles.
My car has an automatic transmission.

A: This sounds like an aftermarket addition, w...

This sounds like an aftermarket addition, which are often wired in pretty poorly by people that install them. I would suggest having the car inspected by a qualified technician, such as one from YourMechanic, before doing any long drives with it. They will be able to inspect your electrical system and diagnose why your car stalled in the first place. Once this is done, the necessary repairs can be made to ensure that the car is safe for the road.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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 constantly shutdowns when it hits low RPM (idle) in traffic

Hello. There are several issues which could cause this behavior. A dirty throttle body (which you have already checked), a dirty idle air control valve, a failed throttle position sensor, an air leak in the intake (loose or split hose,...

Q: What could cause blown turn signal fuses if the turn signal switch and the flasher relay have been replaced?

Hello there, a few common faults will cause your turn signal fuse to blow repeatedly on your 2003 Jeep Grand Cherokee. If the blower and turn signal issues started at the same time its very likely there is a short...

Q: Ignition not turning.

This is a common problem with the Ford Focus. Most likely, the ignition cylinder is bad and requires replacement. A certified technician, like one from YourMechanic, will be able to repair this for you.

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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.