How many amps does an alternator have at idle?
your alternator and claims that it is rated at 200 amps and 150 amps at idle, or whatever works for the needs of your vehicle. This is a good solution as long as you ask the following question, “What idle speed are you basing your idle output amperage on?” The downside – The answer to the questions just asked is generally 2400 RPM.
What is the minimum RPM of an alternator?
because alternator pulleys are normall smaller than crank pulleys, when an engine is idling at the recommended 850 rpm the alernator will be spinning around the 1000 rpm mark so the minimum alternatro speed is when the battery light goes off as any slower and it will not be charging
Why does my car idle at a higher RPM than normal?
Updated January 19, 2019. If your car seems to be revved up to a higher-than-normal RPM while idling, it’s not necessarily a problem. If this problem happens while the engine is cold, it may be part of the engine’s design.
What causes alternator output to increase with increasing engine speed?
Faulty voltage regulators (where applicable) causing alternator output to increase with increasing engine speed. Short or open circuits, or high resistances, in the stator windings. Poor battery states of health or charge. Short or open circuits, or high resistances, in battery or earth cables and/or connections.
your alternator and claims that it is rated at 200 amps and 150 amps at idle, or whatever works for the needs of your vehicle. This is a good solution as long as you ask the following question, “What idle speed are you basing your idle output amperage on?” The downside – The answer to the questions just asked is generally 2400 RPM.
What should the idle RPM be on a car?
Your engine should normally get to around 700 RPM after you start the vehicle, depending on the model. If your idle is way off and you have one or more of the problems listed above, then you will want to diagnose the issue right away.
Why does a 250 amp alternator not always work?
If you were to purchase and install a 250 amp alternator, that does not mean that it is always producing that level of output. There are two reason for this: 1. Most alternators idle. 2. Your vehicle may not require your alternator’s max output. It will only consume what it requires. For example, if it only needs 50
What does accelerated idle mean on a car?
But if the accelerated idle persists even after the engine is fully warmed up, it probably indicates a genuine problem. The first step is to determine if there are any diagnostic trouble codes stored in the PCM (powertrain control module). If there are, this will give you a good starting point for troubleshooting.