old myth, bad for alternator, dont do this..
you could pull off your positive battery cable if it stalls out then you alternator is the problem
it shouldnt but it will if the alternator is bad or it has worn belts or broken belts on it
It runs to the under hood fuse box, the alternator, and the starter.
The proper way to check the alternator is to use a voltmeter with everything hooked up. Unhooking the battery with the engine running can cause a voltage spike that will damage any electronics on the vehicle. If the truck isn't charging, test the voltage regulator on the firewall.
We have a 2003 Dodge Intrepid and it has 249,300 on it. The alternator and radiator have been replaced and a broken wire has been replaced on the transmission. This car has the 2.7L engine.
Red/positive cable to red/positive cable. Black/negative cable to black/negative cable. The battery is under the cover in front of the air cleaner.
When you unhook the battery the computer loses its voltage reference. It then doesn't know what to set the alternator at, along with the voltage spike that happens when unhooking the battery.
You replace them when they stop working. They stop when they stop.
The voltage regulator is part of the engine computer. That will have to be replaced by the dealer.
there is a positive battery post under the hood of the car that you use for your positive cable hook-up and then connect your negative cable to any metal portion on the engine.
Normally goes to the starter or starter solenoid.
The Alternator is not putting out enough voltage. If you recently replaced the alternator with a "new" remanufactured alternator that one could be bad to your truck somewhere to get it tested.