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Chevrolet K1500 Suburban Ignition Switch

Some Factors that Affect the Functionality of the Chevrolet K1500 Suburban Ignition Switch

When you turn your key to the "Start" position, it normally results in the operation of your car's starter and the starting of your engine. Upon releasing the key so that it goes back to the "On" position, the starter stops. Any time either of these two scenarios fails, one possible cause is the ignition switch. The Chevrolet K1500 Suburban ignition switch, which is operated by an ignition lock mechanism that is located on the top right-hand side of the steering column, is responsible for opening the circuit to the starter relay, which in turn opens the circuit to the starter solenoid, thus completing the largest current circuit that supplies power to the starter. The ignition switch's failure can cause the Chevrolet to not turn over. However, before you blame the ignition switch for your car's non-cooperation, you should check other parts of the starting system, from the battery to electrical connections and their various components. Some tests for a no-start problem are simple; others are a pain in the neck. Nonetheless, you need to find out why the car won't start.

Battery issues

Over time, your battery connections can become dirty or corroded; check first to make sure this isn't the issue before you turn attention to your ignition switch. A dead battery is another obvious problem; check to indirectly see if this is the case by jump-starting the car. If it starts right away, your problem is likely a dead battery.

Electrical connections

There are lots of electrical connections in your fuel injection system. Basically, you should check all electrical connections under the hood to be sure they're tight.

How to tell if your ignition switch is in good working condition

If upon turning the key to the "On" position and the red warning lights on your dashboard light up, that's a good sign. If after turning the key to the start position the dash warning lights turned off, your ignition switch is A-OK. If you're still not sure, try turning on the headlights. When you try to start the car, the lights should either dim a lot or turn off completely.

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  • Tips to Keep Your Chevrolet K1500 Suburban Ignition Switch in Good Working Condition 04 March 2014

    An ignition switch that won't turn can be both frustrating and time-consuming. There are several reasons why an ignition switch won't turn and some of them may be quite dependent on the model of your car or the particular situation you've found yourself in. Sometimes, switching on and off your Chevrolet K1500 Suburban ignition switch can get things going, for a while anyway. However, when the ignition switch fails, problems develop in the electrical wiring or the plastic housing. The car may not turn on or start; also, the spring-loaded start position can malfunction, causing the starter to not engage unless the key is turned back to the 'On' position. Here is an overview of some of the simplest approaches which are worth trying to prevent such instances from occurring.

    • Apply contact cleaner into the switch.
    • Spraying contact cleaner to the ignition switch should help it last longer-something you would want the switch to do. Preferably, you should clean its old dried-up grease, polish the contacts, and reassemble the switch to achieve the confidence that you won't be let down on the road. Clean them out with a solvent-if not contact cleaner, then denatured alcohol or WD-40-and apply new grease before you reassemble the switch. A harsh solvent like carb choke cleaner or brake cleaner is not recommended for use because of their unknown effects on plastic. Be careful not to allow the solvent to drip on upholstery. Keep the car open to prevent accumulation of fumes, and avoid sparks or open flames while doing the procedure.
    • Always check if the components of the lock cylinder are functioning well.
    • On some lock cylinders, a tumbler may bind in a locked position, so that the springs are unable to push it back. Tapping the face of the lock cylinder can release it from its bind.
    • Keep the ignition switch lubricated.
    • Open the hood, pull out the oil dip stick and drip a couple of oil drops on the key, which you will insert into the ignition lock to distribute the oil by pushing and pulling it in and out a few times.