What Does The Flashing Check Service Engine Soon Light On A 1999 In

A flashing check engine low-cal is your Chevy Silverado's way of saying "I have a serious problem, don't ignore me". Most of the time, that serious problem is a misfire. This flashing light should not be ignored. When your engine is misfiring, it is dumping raw fuel into the exhaust. This raw fuel can detonate, which causes damage to the catalytic converter and the frazzle system itself.

There can be other situations that can cause the bank check engine light to blink as well. It'due south flashing to let y'all know that if y'all keep driving the vehicle, you are going to ruin the catalytic converter and/or damage the engine in a meaningful mode.

Flashing Check Engine Light Chevy Silverado

Blinking Bank check Engine Light Diagnosis: Chevy Silverado

At that place will always be trouble codes associated with the check engine light blinking. These trouble codes will be able to tell you where to start hunting downwards the problem. Here are the about common issues that end up causing the bank check engine low-cal to wink. But, follow the OBDII codes. A code scanner is cheap. Use it to find out exactly why your vehicles computer decided to flash this light.

Silverado Check Engine Light Flashing Due to Ignition Issues

The ignition arrangement is the most mutual reason that the check engine low-cal volition wink. The ignition arrangement consists of spark plugs, plug wires, and the ignition coil packs (older vehicles have a distributer that has the same role as coil packs). These parts work in concert to ignite the fuel in the combustion chamber at just the right time.

P0300: Random Multiple Misfire– This is one of the well-nigh common codes that is thrown when the engine is misfiring. It ways that the engine has a misfire, merely the computer can't detect which cylinder that information technology's coming from. This code is often thrown when at that place is afuel issue, or a timing issue, and non only bad ignition components. That is unless all the cylinders share a mutual coil (distributor ignition).
P0301-P0312: Cylinder Specific Misfire- These trouble codes correspond with a specific cylinder misfiring (cylinder number corresponds with its place in the firing club). Although it's a bad sign when the service engine soon light flashes, when one of these codes comes up with it (and zip else), it's about always ane spark plug or ignition coil. There tin can exist other reasons this code is thrown, you can see more by clicking on the P0301 link above.

In that location are other misfire related codes besides, but those are the most mutual ones.

Chevy Silverado Blinking Check Engine Light Diagnosis

Fuel System Issues

Keeping in listen that any engine needs air, fuel, and spark for ignition, your Chevy Silverado's fuel arrangement tin oft cause the engine to misfire. Information technology can run too lean or rich. Alternatively, in that location may not exist plenty fuel for proper combustion, or the fuel isn't atomizing properly.

Fuel Mixture: If the engine is running rich or lean, the engine will misfire and throw the fuel mixture related codes, such as P0171, P0172, etc..
Injector Bug: A bad fuel injector(south) can cause a misfire. If the fuel can't atomize properly, the engine will misfire. Here'southward a expert article on how to diagnose whether your fuel injectors are bad from procarmechanics.

Conclusion

We recommend that you don't drive your vehicle if at all possible until you diagnose and fix your Silverado's flashing check engine lite. Just pretend that it's letting you lot know that it's going to cost you lot way more money to ready the problem if you go on driving it. If at that place is anything that you would similar to add, delight feel costless to go out a annotate beneath. Proficient luck!