Positive Battery Cable To Alternator

Connect b battery cable to alternator.

Positive battery cable to alternator.

In modern cars the alternator is actually disabled when the battery is full and the electronics will run from the battery for a while reducing load on the engine and improving fuel economy. Reconnecting battery cables generates a second spike. Fixing your battery or alternator can be an expensive repair. 4 6 out of 5 stars 4.

Get it as soon as thu sep 24. To do a quick check on an alternator i was told that you could start the car and then remove the negative battery cable. Have the alternator tested and replace the battery. 4 3 out of 5 stars 11.

If faced with electrical issues it is always a good idea to clean up your battery cables and check your grounds first before buying at replacement components. At least not on a modern vehicle with computers. Without it full alternator output voltage can spike to 150 volts more than enough to fry every computer in your vehicle along with your stereo fuses remote door locks etc. A scraped up wire can do it.

As others have stated by contrast with a generator the alternator is designed exclusively to recharge the battery. Acdelco 4sd54x professional 4 gauge positive side terminal battery cable with auxiliary leads. Acdelco 20943125 gm original equipment alternator battery jumper cable. A bad battery can do it.

The alternator charge wire routes direct to the battery and not through any switch connection the alternator will not operate correctly if not connected direct to battery or directly through the ammeter. Doing this would allow you to check whether the alternator is putting out enough current to run the vehicle. All you can do is replace the cable to the battery and possibly the negative battery cable terminal since that one is giving you problems removing the terminal. Only 3 left in stock order soon.

Install a jumper from pin f in harness plug to b terminal on alternator. Never test an alternator by removing battery cable. Some may recommend running the engine with the negative battery cable disconnected to test the alternator. Turn on battery switch.

However this is not a good idea because it could damage the electrical system of your vehicle and cause greater problems.