Positive Battery Cable To Alternator

Reconnecting battery cables generates a second spike.

Positive battery cable to alternator.

The alternator charges the pass battery and the ecm monitors the ds battery so when the cross over cable is bad it boils the pass battery 05 c c drw 4x4 full billet dtt billet62 s480 ppe dual fueler hp tuners flux inj studded ported head w hellmann intake hamilton valvetrain mitusa gusher 5 flo pro mag hytec dd trans and rear diff guages. 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. Dear tom and ray. Acdelco 20943125 gm original equipment alternator battery jumper cable.

Never test an alternator by removing battery cable. Connect b battery cable to alternator. Fixing your battery or alternator can be an expensive repair. Turn on battery switch.

Install a jumper from pin f in harness plug to b terminal on alternator. Acdelco 4sd54x professional 4 gauge positive side terminal battery cable with auxiliary leads. To do a quick check on an alternator i was told that you could start the car and then remove the negative battery cable. However this is not a good idea because it could damage the electrical system of your vehicle and cause greater problems.

A bad battery can do it. A loose connection can do it. 4 3 out of 5 stars 11. Some may recommend running the engine with the negative battery cable disconnected to test the alternator.

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. At least not on a modern vehicle with computers. 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. As others have stated by contrast with a generator the alternator is designed exclusively to recharge the battery.

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. 4 6 out of 5 stars 4. Doing this would allow you to check whether the alternator is putting out enough current to run the vehicle. A scraped up wire can do it.

Get it as soon as thu sep 24.