Will a car run with a bad alternator?
Yes. But it will be only running for a short time as it is running strictly off of the energy stored in the battery. Depending on what you are driving is how long it will run like that. Older vehicles will run for quite a while, if you don’t use your brakes much (because the brake lights use power), and keep the headlights off, as well as any other accys that use power. Newer vehicles will not run as long because the computer (ECU) and all of the other things that take power to monitor and regulate your engine.This isn’t recommended in any case because running a vehicle on diminishing electrical power can cause many components necessary for it to run to fail. Even in an older vehicle the coil, or condenser can be ruined. However, sometimes we have to do what we have to do in order to get out of a situation. If there is any possible way to not operate your vehicle when the alternator is bad, go that route.Good luck.
How can you fix an alternator that is overcharging?
If an automotive alternator (Question misses the assertion of where the alternator is, and what drives the alterntor), is deemed to be ‘overcharging’, then you need to look at all of the things that can cause a reduction in current.Since most automotive applications have the alternator bolted to the engine block, I would look at corrosion of the charging circuit back to the battery.This means the ground connection at the alternator, the ground strap to the frame, and the battery negative terminal to the frame as well.It means for an older (>4 years old) car, the atmospheric conditions can cause oxidation, and the regulator that controls the current into the battery can go out of tolerance.Another source of resistance, is the bolt that holds the regulator to the frame.If that is rusted, then the regulator can mis-interpret when to conduct and shunt excessivve voltage away from the battery.If it is a simpler car the regulator is a separate component, and is suspect. IF it is a car where the Engine Control Coomputer controls everything then somewhere, it is getting the wrong input and then reacting appropriately.
How does the Smart Key system work on the Toyota Prius?
I recently purchase a Toyota Prius, the smart key system worked properly when we drove it off the lot. Then latter on we went to start it. We hit the power button twice but the car would not go into gear. I turned off the smart key system and put the key in, shut the car off and turned it back on and it worked. How do I get the smart key system working? Am I doing something wrong?
2004 Toyota Sequoia Starter, Battery or Alternator problem?
Continuous clicking means that the starter is not receiving enough power from the battery. The first thing to do is remove the battery cables and clean the posts and the inside of the battery cable connectors using a wire brush or sandpaper. You could even gently scrape them with a screwdriver. The idea is to brighten them without removing too much metal. The positive terminal seems to be most susceptible to what I call "terminal crud". Tighten securely. The battery might also be low if you left the lights on for a few hours with the car not running. The alternator supplies electrical power to the car once it is running and recharges the battery. It does not play a direct role in starting the car. If it was not working or it's belt was loose, you should have seen the charge/battery icon light lit when the car was previously driven. Don
How many miles can a toyota corolla last?
70,000 miles? It's still a baby!!! I don't know how long they last. All I know is that I sold my first Corolla (a 1974 Corolla) in 1995 with 386,000 miles on it and it still ran amazingly well with the original engine and transmission- neither had ever been rebuilt. Because of that, I have owned mainly Toyota ever since.
What problems can a bad serpentine belt cause?
Your serpentine belt is driven by your crank pulley. What that means is when your engine is running, your serpentine belt will be turning. Generally speaking, your serpentine belt will run along your a/c compressor, power steering pump, and also your alternator. If this belt breaks, it will cause all of those items to lose operation. First you will lose power steering as well as your a/c, then after the vehicle has ran off and drained your battery (since the alternator is no longer charging it), the car will stall.
Battery light just came on in my car and steering wheel tightened up...?
I waS on my way home and my battery light came on so i turned off the air and the radio (thought maybe it would conserve some of the energy if the battery was dying. everytime i tried to turn a corner the steering wheel was sooo tight i had to force it to turn. I got home and turned the car off and back on a few times, turned the radio and the air back on to see if they still worked...everything was still working but the battery light was still on and the wheel was still locking up...does anyone know what would cause both of those things to happen at the same time?
Why do you have to change a car's alternator when changing the battery?
Well, three possibilities here.One. You alternator failed, killing the battery. Replace the battery, test the alternator. You can't test an alternator with a failed battery. Start the car with the new battery, voltage should go up from 12.5ish to 13–14 volt range.Rev the engine slightly (2500–3000 rpm). Turn on all the electricals, lights, air conditioning, etc. If the voltage drops below 12.8 for more than a second, look at replacing the alternator. It should spring back to 13ish.Often alternators will have a modular regulator. Most parts shops can test and determine if the alternator itself is blown, or if it's just the regulator. The brushes may be gone, and are sometimes integral to the regulator. Either way, it's cheaper than a full alternator.If the alternator is bad — doesn't make voltage; or is weak — doesn't hold voltage: then fix or replace it with the battery.Check the feed cables and battery connections on the off chance they're bad. You should do this regardless.Two. This is a low probability. Your battery failed, killing the alternator. This can happen in the case I forget a dead short in one of the cells of the battery, or a near total loss of liquid in your battery. Either way the battery case will likely be distorted, or even cracked. It will have a voltage less than 9. It may even stink of rotten eggs, with a slight taste of chewing on foil.Three. Your mechanic is a liar and a thief who's trying to get more money out of your pocket and into his. If he says that you have to replace the alternator because the battery is bad, this is the case.
What happens when car battery cables are wrongly connected?
Let's say the red cable from the jumper cables is the positive terminal, and the black cable is the negative terminal.The battery with the red cable on the positive terminal will be a +12 V battery, and the battery with a red cable on the negative terminal will be a -12 V battery. When they are connected together, then what you were doing is putting -12 V battery in parallel with a +12 V battery.If you do this, then the positive 12 V battery tries very hard to make the -12 V battery positive, and vice versa. Because a battery is a voltage source, each battery will flow as much current as possible into the other battery trying to equalize their voltage levels.The only resistance to this flow of current is the battery’s internal resistance and the jumper cable resistance. Together, this resistance might only be 0.1 Ohms.Car batteries can easily supply 500 Amps if the load resistance is small enough. So with 24 volts of difference between the 2 batteries, and 0.1 Ohms of resistance, 240 Amps will be flowing between the batteries. The formula for calculating power from current and resistance is P=I^2*R => P=240^2*0.1=5760 Watts of power. Because there is no work being performed, all of that power gets turned into heat.All of that power dissipating as heat will melt the insulators on your jumper cables, and it will melt the plastics of the battery, and it will cause the battery acid in the battery to start boiling.
Will a car jump start with a bad starter?
How to Start a Car with a Bad Starter?The tips described below are the best possible ways to instill life into a dead starter. Try them one by one until you find a solution.Check the ConnectionsThe starter is an electric motor and a part of an electrical circuit. It sets the engine of a vehicle in motion. So, the engine won’t respond if there is an issue with the battery or the connections. Check the joint of all the connecting cables between the battery and the starter. Tighten everything because a loose connection means less flow of current to the starter.Check the starter for loose connections.Clean the CorrosionCorrosion could also be the culprit in obstructing the flow of electrical current. The dirt and grease can accumulate on the starter and the battery, and corrode the cable clamps and terminals of the battery.If this is the case, disconnect the battery and use a fine-grade sandpaper to clean the affected areas. It will remove the dirt, stain, and rust. If the corrosion seems pretty stubborn, apply a mixture of water and caustic soda. Be careful about not to damage any connections.SEE MORE:5 Things to Check for Car Hard Starting ProblemsHow to Diagnose an Engine that Doesn’t Start?Tap with a ToolIt’s another simple trick to the manual of how to start a car with a bad starter. If the starter is dead but the windshield wipers and headlights are working, the problem could be a stuck gear. The starter cannot function properly if that happens.Give the starter a tap about 4 to 5 times with a tool such as a hammer or a wrench. You have to carefully locate its position inside the car and distinguish it from other components. Besides, the taps should be gentle so that the part is not damaged.Tapping the starter with a hard tool might be effective.Sometimes, this method works even if the starter is actually bad. In that case, tapping will provide a temporary fix but the car could be dying anytime soon.Give the Car a Good ShakeIt’s another trick to release a stuck gear. However, you should do it only when you are a noob and don’t have the expertise to open the hood and locate the starter. Push down the vehicle’s handbrake lever while it is in top gear. It will rock the car and may loosen the jammed gear in the process.Ref: Find best deals of used cars from reliable Japanese sellers