![]() ![]() You’ll probably have a misfire-related code such as P0300, P0301, etc… When there is no spark, the engine will not start. One of the most significant issues that will cause a vehicle to crank but not start are ignition issues. Without the proper amount of fuel entering the combustion chamber, the Sierra will crank but not start. If your Sierra isn’t getting enough fuel, or any fuel at all, it may have a bad fuel filter or a bad fuel pump. ![]() When applicable, we’ve listed the common trouble code(s) associated with the cause. The codes will likely be related to the potential issues listed below. Use an OBDII scanner to check and see if the engine has thrown any trouble codes. It is highly likely that if the engine is cranking but not starting that it has thrown an OBDII code. Your truck’s engine needs air, fuel, and a spark to run. Here are the common issues that can cause your Sierra to crank but not start. It really can get that one last start out of it. Or, you can beat the starter with a hammer. Sometimes you’ll get lucky and it’ll “catch”. When a starter goes bad, they will usually not give you much warning at first. When the starter isn’t functioning, it is impossible to start your truck.Ī bad starter can make a clicking noise, no noise, or it can grind. The next thing to look at when your Sierra isn’t starting would be the starter itself. Suspect the alternator if the battery light stays on after charging your truck’s battery or jumping it. ![]() If the battery is dead, it either isn’t storing enough voltage or it isn’t charging enough.Ī bad alternator can cause your battery to drain to the point it can’t turn your Sierra over. If the battery is in the vehicle and it’s under 12 volts, it’s likely bad unless your truck has been sitting for a while or something is drawing current. You can take your battery to the local parts store or even Walmart and have it tested to see if it still holds a charge.Īlternatively, you can test the battery yourself with a voltage meter. Your Sierra needs 12+ volts to start its engine. Low Battery VoltageĪs your truck’s battery ages, its cranking amperage decreases, leaving it with a diminished capacity for starting the engine. Here’s a good article from Napa on properly cleaning a battery terminal. If there appears to be green or white on them or the terminals, cleaning them may be what your Sierra needs to get back on the road. If they are loose or corroded, it acts as a barrier that can keep the starter from getting the voltage it needs to crank the engine. Start by taking a look at the battery posts. Battery Cables If you have a battery post that looks like this, it may be keeping your Sierra from starting. Here are the most common reasons why the GMC Sierra won’t start when the engine is not cranking. This article is written with the assumption that you are looking for a way to get your GMC Sierra started now, and is meant to provide you with practical advice to help aid in the diagnosis.įirst, is your Sierra cranking over at all (the engine spins when you turn the key? Or is the starter not engaging (you may hear a clicking sound)? We cover all the likely ones in an order that makes sense when diagnosing the issue at home. Many different issues can cause the problem. Update V 1.0.3 STARTNINJA JKTHF 1.2.If your GMC Sierra doesn’t start, you’ve found the right article. Version on OS X ez12.v.1.2.1.StartNinja.dmg Recomended Sierra spfX_1.1.1_StartNinja.pkg If speakers or headphones are plugged in the system start up chime will still play.įor 10.13.5 version_2.0.1_StartNinja_ Note 2: The system start up chime is played through the internal speaker. It is a free and simple desktop utility that silences the start-up chime and will resume previous sound level after logging in. ![]() Now you can silence the Mac OS X(10.7, 10.8, and 10.9) start up chime with StartNinja. If you're in a library or coffee shop you don't always want that start up chime to play. Macs don't have a built-in way to mute or silence the system start-up chime. StartNinja starts up your Mac with silence and stealth. System / Utilities / StartNinja / 398 KB / AllVu, LLC ![]()
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