97 Saturn 1st Crank Doesnt Start Turn Off Key Crank Again Starts

This is a relatively common miracle and it tin happen to any auto, no affair its age or mileage. To diagnose the problem, yous'll beginning need to visualize the starting circuit. This will prove you where the disconnect could be to explain why you are not getting "crank" (starter turning the engine). If you're studying this in college and look for assist, we advise y'all to check out domyhomework123.com , a reputable assignment writing visitor.

How A Starting Circuit Works

The starting circuit begins at the vehicle'due south battery. In most cars, this is a standard 12 volt lead-acid battery, ordinarily located in the engine compartment at one corner – most normally against the firewall on the right (passenger's) side.

The battery will accept red and blackness (positive and negative) terminals. The black (negative or ground) will usually lead to a ground on the vehicle'south metal frame. The red (positive) will accept a thick lead that goes directly to the starter solenoid, sometimes via an electronic command box. This starter lead will exist the thickest cablevision running from the battery'south positive terminal. Information technology is made to carry the largest amperage load the battery tin can produce (oftentimes defined as its "cranking amps").

The starter'due south solenoid (which is usually attached to the starter as the "hump" on its dorsum or side) takes the power supplied by the battery and ramps it upward to make it stronger so the starter can turn rapidly. Think of this process as a water pipe with a serial of loops that go smaller and smaller in diameter, increasing the h2o force per unit area without increasing the amount of water flowing through. This makes the water jet out the other side faster and further than it would take at its original force per unit area. Like a https://youngchoppers.com listing of hitches. The higher rate of electricity gives the starter motor more "oomph" to turn the engine over.

The process of starting the machine begins at the ignition switch in the driver's cockpit. The key plow completes a small excursion that tells the bombardment to release power to the starter solenoid. The solenoid ramps up the power given to it and that power causes the starter motor to turn very quickly. This turning is translated to the engine, which turns as if it were running (aka "cranking the engine"). Turning the engine causes the pistons to ascension and fall in the engine block, activates fuel and spark, and (hopefully) ignition of the engine and so that it begins running on its ain without the starter motor turning information technology.

In that location are a few other things in the excursion, of course, depending on the car, its historic period, and what accessories or features information technology may have, but the circuit ever has the to a higher place components working in that sequence.

Why Zip Happens On a Key Turn

Now, thinking near that starting excursion, consider the things that could be going wrong to interfere with it. They keyswitch may non be sending the signal to tell the battery to ship juice to the starter, the battery may not be able to ship enough power to the solenoid to turn the starter, the solenoid may non be ramping upwards the power given to it, or the starter may not be functioning and able to turn.

In the case of no sound, calorie-free dimming, or other issues, the problem is going to exist either the ignition switch not sending the point or the battery beingness unable to send the power to the solenoid. Otherwise, in that location would exist some kind of action happening, even if it doesn't start the car, that would denote other issues.

For example, when the starter solenoid is bad, it usually gives off a "clicking" audio equally the power enters it from the battery and gets sent straight to footing instead of turning the starter. As another example, a bad starter would probably either make a grinding dissonance, a "spinning" noise, or the solenoid clicking noise. Likewise, a bad battery would probably not be able to power the dash and headlights and if they were working, they would all the same dim during a start attempt.

Repairs

A low or bad battery can exist easily tested with a standard ohm meter or at any auto repair store or parts store (they normally do this costless of charge). A loose bombardment cable connection is often the simplest of causes for a non-showtime.

A bad starter solenoid means replacement is needed. Similarly, a bad starter is likely going to require replacement. Nearly probable replacing 1 means replacing the other anyway. Finally, a bad ignition relay from the keyswitch can be circuit tested and repaired/replaced.

It's all a thing of knowing what to look for.

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An automotive enthusiast for most of his adult life, Aaron has worked in and around the industry in many ways. He is an accredited member of the Rocky Mountain Automotive Press (RMAP), the Midwest Automotive Media Association (MAMA), the Texas Auto Writers Association (TAWA), and freelances as a author and journalist around the Spider web and in print. You can find his portfolio at AaronOnAutos.com.

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Source: http://www.carnewscafe.com/2014/10/nothing-happens-turn-key-starting-issues-diagnosed/

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