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What would cause a engine to start knocking after the alternator go bad?
Wiki User
∙ 10y ago
I'm wondering the same thing for my 98 mustang gt. My guess is that if your electrical system does not put out enough voltage under high demand AND when accelerating hard (or up hill), there might not be enough voltage a the Mass Air Meter (MAF) to sufficiently power it. If that's the case the MAF might underestimate the air flow to the engine, causing the ECM (engine computer) to command an insufficient pulse width to the fuel injectors, resulting in a lean condition. This lean air-to-fuel ratio would, in general, cause increased combution temperatures, which in turn can cause pre-ignition and engine "knock."
Anyway, that's my take on it. What's yours?
Wiki User
∙ 10y ago
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What cause alternator not to produce power to start engine?
The alternator produces power to charge the battery. The battery powers the starter to turn the engine over.
Can an oil pan drain gasket cause a engine to start knocking and cause a good engine to go bad if placed on the car wrong?
It could be the cause of the knock only if the gasket was bad and leaked out almost all the oil.
What would cause a engine to start knocking after it's driven through high water?
Connecting rods that are bent. Either way, you are looking probably at an engine rebuild at best, possibly and more likely an engine replacement.
How do you get the alternator to turn over?
The alternator is run by a belt connected to the engine. When the engine is running the alternator is turning. The alternator is what produces the electrical current that charges the battery & powers everything electrical while the engine is running. the battery is mainly to start the engine.
Should your car start right after changing the alternator?
If the battery is fully charged and the starter is working properly it will turn over and start. The alternators sole purpose is to supply voltage to the vehicle and battery when the engine is running. When the engine is not running the alternator has nothing to do with starting the engine. If the alternator went bad and the battery was discharged then you will have to charge the battery before it will be able to start the engine. Do not jump start the engine with a dead battery if you can avoid it. This puts a strain on the alternator trying to recharge a dead battery and can damage the alternator, even a new one.
What would cause a knocking sound after you start your car It olnly last a few seconds but does it every time especially after ir has set awhile?
No engine lube at start up. Bad oil pump or very dirty engine lube passages.
When you start your engine in the morning you heard knocking sound alwalys in the top of the engine?
Possible dirty sticking valves.
What cause an alternator to blow?
The usual cause of a blown alternator is overload. The alternator will also blow if the battery is connected backwards, even for an instant, such as during jumping. Sometimes, overload is caused by attempting to jump start another car while revving the engine of the first car. The alternator is not designed to carry the current of a starter. Depending on the alternator, protection might be built in, but don't count on it. Rev the engine only to help charge the other battery, and then let the engine idle while starting the other.
2001 Montana What would cause knocking as well as a maximum speed of 80 km on the highway?
Not sure what your asking exactly. But I will tell you this about knocking in Montanas. I have seen a few of them that will start sucking oil into the combustion chamber through a leaking intake manifold gasket. The motor goes dry enough to cause a knocking on the lower end of the engine. End of motor! Check your oil!!!
When an alternator is bad what happens to your car?
The battery will run down and he engine will stop. You will not be able to start the engine. The alternator keeps the battery fully charged.
Will a car start if the alternator is going out?
It will start if there is enough charge in the battery to turn the engine over. However if the alternator is weak then the battery will not be charged fully.
Were is alternator on polaris 400 sportsman?
The alternator, or stator, is behind the pull-start cover on the right side of the engine.
