Skip the auto shop - Our mechanics make house calls

Q: No power new alternator. 1974 Chevrolet Chevelle

asked by on

I was changing the alternator in my car yesterday and took the power wire completely off. I also took the bolt off the back of it, too. I barely got any spark from it, so I decided to put in a new alternator and a new battery. When I got everything hooked up again and went to start my car it had no power at all. I checked the glass fuses and changed parts that were in poor condition. Do you have any suggestions, ideas on what else I should do to get my car going again?

Hello. Thanks for writing in about your 1974 Chevrolet Chevelle. If you got a spark from the wire on the back of the alternator, then you shorted something out. You need to follow the wire from the alternator to where it connects to the battery and fuse box. This more than likely melted the fusible link which is typically near the battery. It will look like a melted wire. That would need to be replaced first, and if there are further issues, then more electrical diagnosis will need to be done.

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: Starter

The main starter cable may need to be checked to make sure it is sending power to the starter. Check the ground to the engine also. It may be possible that you have gotten a defective starter installed. Try getting...

Q: Car starting intermittently.

Intermittent no start conditions can be among the most difficult to diagnose because of their irregular nature. There are two things that come to mind. Number one: A faulty starter will cause a condition similar to what you are...

Q: Car won't start after installing new starter

Greetings. I would start first by double checking the starting system for faults.  A common issue owners of your particular vehicle may face is the ignition switch becoming faulty. The contacts inside the switch will wear overtime and lose the ability...

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.