What does a blinking check engine light mean on a Chevy Silverado?

This blinking light usually indicates a severe engine misfire allowing unburned fuel to be dumped into the exhaust system. There it can quickly raise the temperature of the catalytic converter to a point where damage is likely, requiring an expensive repair.

What is the spark plug gap on a Chevy 350?

Spark plugs for the Chevy 350 engine are readily available from any auto parts store. Spark plugs come pre-gapped, but you should always verify the gap with a spark plug gap tool. The gap for a 350 small block should be 0.035 inches.

What does it mean when your check engine light flashes 11 times?

A flashing check engine light means it is misfiring, but more importantly it is misfiring bad enough that raw, unburnt fuel is being dumped out of the engine and into the exhaust system. The issue it’s self may be something as simple as a spark plug, or as catastrophic as you need a new engine.

When should I change my spark plugs on my Silverado?

The spark plugs should be replaced every 100,000 miles. Our technicians recommend replacing the spark plug wires also at this time.

What is the difference between 41 110 and 41 162?

To finally answer this question, the 41-110 is a NGK plug and the 41-162 is a Denso plug. GM switched vendors, the plugs are basically the same.

What is the best spark plug gap?

For most racing applications, you usually want the plug gap to be between 0.020 and 0.040 of an inch. Most engine builders seem to settle around 0.035 of an inch. Factors such as the type of ignition you run, cylinder heads, fuel and even timing can affect how much gap will work best for you.

What do you need to replace spark plugs in a car?

Generally you’ll need a ratchet, sockets, and some wrenches. Park your vehicle on a flat, dry surface and ensure the engine is cool. Clean the engine area of any dirt and debris to prevent anything from falling into the engine cylinder during spark plug replacement.

What are the symptoms of bad spark plugs?

Worn spark plugs will tend to create rough engine idle, misfires, hard engine starts, reduced power, and higher fuel consumption. In most modern engines, a “check engine” warning light will even come on if misfires are present after three or four consecutive starts.

What are the spark plugs in a Toyota?

Spark plugs are a serviceable, yet extremely important, part of your Toyota’s engine. They sit inside the cylinder head where they create the spark that ignites fuel — the combustion that enables your engine to run. Spark plugs that have outlived their time will cause misfires in your engine — robbing it of efficiency and performance.

How often should you change spark plugs on a Toyota Corolla?

When to Check & Change a Spark Plug Not all spark plugs are rated for 100,000 miles. In fact, some carmakers recommend replacement at 30,000-mile intervals. Always follow the spark plug service intervals shown in your owner’s manual to figure out when to replace spark plugs.