Skip the auto shop - Our mechanics make house calls

Q: I replaced alternator without disconnecting battery cable won't start?? Not even power at fuse box

asked by on

No power in car whatsoever starter is ok so is battery can't even use starter solenoid to crank car

My car has 160000 miles.
My car has an automatic transmission.

Hello, thanks for writing in. You need to check all the main fuses in the engine fuse box. You most likely blew one or more which is why the issue is still occurring. If you need help having the problem scoped out, a certified professional from YourMechanic can come to your car’s location to diagnose the loss of power.

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!
  • Home
  • Questions
  • I replaced alternator without disconnecting battery cable won't start?? Not even power at fuse box

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: How to set the idle

Hello there, thank you for asking about your 1986 Ford V8-5.0L. The throttle body and idle air control valve should be cleaned first. The idle is not adjustable on this vehicle but the throttle stop on the throttle body can...

Q: Clutch or tranny issue? 2001 Ford Mustang

Hello - check the clutch cable first for proper adjustment - when depressing the pedal, it should become firm just off the full release position to ensure maximum throwout bearing travel and full clutch disengagement. When adjusted correctly, clutch should...

Q: Alternator went bad within a 24 hours of installing it

Hi there. It definitely sounds like you may have received a defective alternator; it does happen. Also, have the battery fully charged prior to installing to prevent damage to the new assembly; there is usually a tag attached to new...

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...
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.
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.