Can a bad ignition switch keep a Chevy Silverado from starting?

A bad ignition switch can cause your Silverado not to start at all. And, it can keep your Silverado from starting in a couple of different ways. The first is when the starter cranks, but the bad ignition switch doesn’t turn on the fuel pump or ignition.

Why is my ignition switch not working on my truck?

My ignition switch was one of those issues. So naturally I dropped by Napa, got a new ignition switch. Took everything apart according to my Chilton manual and put everything back together in the same fashion. Even made sure the gear teeth were in the proper place according to the manual. However when I go to crank the truck…nothing.

Why does my Silverado keep running without the key?

SILVERADO3 ill take a look i really dont like to mess wit the truck being that that seem to be like an electrical problem dont want to mess anything up more than what already is but doesnt hurt to try thanks ill let you know what i come up with.

Why does my starter click when the key is turned on?

Hope this helps!!! Nope it’s not a dead battery the starter sounds like it wants to go but all it does is click. it almost sounds like what my old s10 did when the starter is over heated. what does a starter go for?

How to turn off starter on Chevy Silverado?

1 Turn OFF the ignition. 2 Disconnect the PCM harness connector. 3 Connect a DMM between the starter enable relay control circuit of the PCM harness and a good ground. 4 Turn the ignition to the START position.

Can a Chevy Silverado start or crank over?

Chevy Silverado does not start or crank over. Chevy Silverado does not start or crank over. Welcome to JustAnswer. The pcm actually commands the starter to turn over on this vehicle.

What happens if you have a bad ignition switch?

The first is when the starter cranks, but the bad ignition switch doesn’t turn on the fuel pump or ignition. The engine will just turn over with no spark. The second way is when the starter doesn’t turn at all.

How to test ignition a on a 2004 Silverado?

See if you have 12 volts to the crank fuse when they turn the switch top the start position, make sure to have them turn the switch to start at leat 5 times with the samr test results. yes, i have 12v on both sides when key is in crank position. And you had 12 volts to fusese ign a and ign E correct? ignition e, yes. how do i test ignition a?

Is there a 2004 Silverado that won’t start?

I have a 2004 silverado that won’t start. Have bench tested starter and battery and replaced relay and ignition switch. I have a 2004 silverado… I have a 2004 silverado that won’t start.

Can a faulty ignition switch cause a no start?

Please try again later. GM Ignition switch replacement to fix a no start or intermittent start. Faulty ignition switch contacts can also cause the PassLock system to enable Click here to see step by step proceedures. http://www.thejunkmanadv.com/the-junk… Support the site, buy service manuals here : http://www.tkqlhce.com/click-7357719-…

I have a 2004 silverado that won’t start. Have bench tested starter and battery and replaced relay and ignition switch. I have a 2004 silverado… I have a 2004 silverado that won’t start.

Why is my Chevy Silverado not cranking over?

Since you have voltage on the crank fuse while in crank position, we know the ignition switch is good. The pcm supplies the ground to the starter relay to turn on the starter. It is possible if the wiring is good, there is a problem with the pcm.

What should I do if my Chevy Silverado wont start?

Connect a 30-amp fused jumper between the battery positive voltage circuit of the starter relay switch circuit and the supply voltage circuit of the starter solenoid. Does the engine crank?

Why does my GM ignition key not turn?

Sometimes the ignition key won’t turn or rotate. If that happens the vehicle won’t start, the steering wheel won’t turn and it won’t shift into gear. On a late 90’s or early 2000 GM vehicle this is the way to get it apart so you can replace the tumbler. Category Autos & Vehicles.

Why does my Chevy Silverado not start up?

Others involve the ignition switch itself, and others involve one of the computers that the system communicates with when starting the vehicle. The security system may have a number of issues, including the installation of a remote starter, causing the car or truck not to start. Most complaints involve a blinking security light.

What are the symptoms of a bad ignition switch?

These include stalling issues, not starting, and no power to the radio or accessories. The Silverado’s ignition switch is not what your key goes into. That is called the lock cylinder.

Is there a problem with the ignition on my GMC Sierra?

This problem occurs in minivans, cars and SUVs as well. There has been more reports of ignition Anti Theft defects and the security light flashing in more cars and trucks. This is one of the easy fixes for the common ignition starting problem, but GM needs to recall this issue and fix it for us.

When to troubleshoot the electrical system in a Chevy Silverado?

This happens sometimes when trailer wiring has been added, causing electrical system problems. Consider having the BCM or Body Control Module replaced if your Silverado repeatedly blows out the same fuses or if it seems like you’re experiencing one electrical problem after another.

Can a bad ignition switch cause a car not to start?

However, if your car has ignition switch problems, you may not be able to start the car at all. Ignition switch problems can also cause issues on the road, such as unexpected shutdowns or electrical problems.

These include stalling issues, not starting, and no power to the radio or accessories. The Silverado’s ignition switch is not what your key goes into. That is called the lock cylinder.

Why is my Chevy Silverado 1500 not starting?

However, today, when the truck will crank and start, the antitheft icon goes off after a few seconds with the key on and stays off while the truck is running. It never flashed either today or yesterday though. And I don’t know if the antitheft system disables cranking or starting or both.

Why does my car not start when I crank the engine?

If the engine doesn’t crank, or makes an unusual noise when cranking, you may have a starting system problem. The car’s security system may have made an error that disabled the fuel or ignition system, or the chip in the key may have failed.

If the battery is empty shortly after charging, the alternator should therefore be checked for a defect. If the battery is OK, a defect in the starter can be the cause of a non-starting vehicle. Age-related wear or a material defect can damage the starter. This is often noticeable by a clicking sound when trying to start.

Why does my GM car say no start no crank?

How to diagnose a no start no click on GM vehicle. If you have a late model GM vehicle and turn the key only to hear nothing, you’ll most likely think you have a dead battery—and you may. But a no start, no crank, no click condition can be far more involved than that.

Why does my car not start when I Turn on the ignition?

The most common causes are in the ignition (for example, a bad ignition coil) or fuel system (for example, a clogged fuel filter). However, the source may also be a mechanical fault (for example, a leaking valve), or faulty components in other systems.

What kind of ignition switches do boats use?

Our inventory of thousands of discount new and replacement boat parts includes boat toggle switch sets with ignition switches and horns, boat ignition switch panels, push-to-choke boat ignition switches, marine engine kill switches, and more boat engine ignition switches and ignition parts.

How can I test the voltage of the ignition switch?

You can check the voltage of the switch by using two tools – a 12-volt test light or a digital multimeter. Step 1: Disconnect the module’s wire connector after turning the ignition switch off. Also, disengage the starter solenoid’s S terminal. Doing so will stop the engine from cranking despite turning the ignition key to the run position.

How big is the ignition switch on a Chevy Chev?

This is a rubber O-rings that holds plug wires. 1-5/16 inch outside diameter 3/4 inch inside diameter For 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 Chevrolet Cars and Trucks This is a reproduction ignition switch.

Is there an easy fix for a GMC ignition switch?

This is one way to fix a very complicated electrical system in the Chevrolet and GMC cars and trucks. Some are easy fixes with loose or bad electrical connections. Others involve the ignition switch itself, and others involve one of the computers that the system communicates with when starting the vehicle.

Where does the ignition key go on a Silverado?

I have a 2000 Silverado 1500 LS 4×4 with a 5.3. Automatic column shift with cruise. When I start the truck, the key will stay in the “start” position.

Why does the ignition key stay in the ” start ” position?

Automatic column shift with cruise. When I start the truck, the key will stay in the “start” position. I have to manually turn it back to “run” so my starter won’t keep running. Also, when I turn the truck off, I now have power to accessories (radio, wipers, lights), just like I have the key turned to accessory.

What to do if your key is stuck in the ignition switch?

The key may be stuck in the ignition switch, but that shouldn’t stop you from turning it. If you don’t have a key, you will need to force the module to turn using a flathead screwdriver. Press the release pin inside the hole on the ignition module with a screwdriver.

What happens if you have a faulty ignition switch?

A faulty ignition switch in your vehicle can cause several problems ranging from your car stalling and all lights going dark to the radio not working unless the key is wiggled from side to side.

Why does my car not start when I put the key in?

Putting the key in the ignition switch and starting the car feels like second nature. However, if your car has ignition switch problems, you may not be able to start the car at all. Ignition switch problems can also cause issues on the road, such as unexpected shutdowns or electrical problems.

Can a worn key cause an ignition switch to go bad?

Before spending time and money to replace the ignition switch, a thorough diagnosis should be performed. Some of the symptoms above can be caused by a worn key. Also, the term “ignition switch” commonly refers to the full ignition assembly, which includes the ignition lock cylinder and the ignition switch.

Why does my car not start when I turn the key?

This condition is usually due a failed fuel pump, a failed ignition coil, a failed ignition control module, a failed crank sensor, etc… that lets the engine crank (turn over) but does not let it start. A No Crank Condition means that the engine is not turning over when you turn the key to crank the engine.

What happens if there is no spark in the ignition?

The ignition system is the one responsible for creating and delivering spark. Without spark, the engine will Crank but Not Start. The ignition system of the GM vehicles covered by this article use a distributor type system. Distributor cap. Crank sensor. Ignition module. Ignition coil. All of the above ignition system components can be tested. 2.)

Why does my car starter not turn on?

Doesn’t take much juice to click the solenoid, but it takes a lot of juice to turn the starter and turn over the engine. The other thing is it is an intermittent problem on the vehicle, so if the starter was intermittently acting up when installed, it could also be intermittently acting up when tested at the auto parts store.

Is it possible that the starter could check out fine?

Is it possible that the starter could check out fine on a benchg test but still not work when in the truck? Yes, especially if there is a bad connection to the starter, or from the battery. Doesn’t take much juice to click the solenoid, but it takes a lot of juice to turn the starter and turn over the engine.

Can a bad ignition switch cause a car to stall?

Car stalls while driving. One of the first symptoms of an issue with the ignition switch is a vehicle that suddenly stalls while the engine is operating. If the ignition switch fails while the engine is operating it may cut off power to the ignition and fuel systems, which will cause the engine to stall.

Why is the ignition switch on my GMC Sierra not working?

The ignition switch is responsible for sending power to the accessories. So, if you find yourself in a situation where your Sierra runs, but nothing else in it works, it may be a bad ignition system causing your problems.

How to determine if a 2000 Silverado has a bad ignition coil?

How to Determine if a 2000 Silverado Has a Bad Ignition Coil 1 Look over the clamps on the battery cables and make sure they are clean and tight around the terminals. 2 Disconnect the battery cables and connect a load tester to the battery. 3 Open the fuse box and inspect all of the fuses related to the ignition system.

What’s the problem with my Chevy Silverado 1500?

When it decides to act right, all is will. Anyone else found a solution? Chevy silverado 1500 2004. The same problem, random intermittent starting. I had had this problem before about 5 times and each time I disconnected and reconnected the negative battery cable it started fine. This time that didn’t work.

How can I tell if my Silverado is intermittent?

If you see battery voltage on both terminals, test the starter motor for intermittent operation. If you don’t see battery voltage on the purple wire A terminal on the starter, use a scan tool or DVOM and wiring diagram and check for IGN switch contact closure at the IGN terminal on the BCM.

Why does my Chevy Silverado 1500 not start?

Ignition switch intermittently stops working. It will cut off while driving city streets and at high speeds and the lock buttons will lock and unlock repeatedly while showing the truck in park, all while going down the expressway. It’s terrifying. Sometimes it won’t start or do anything. But if I jiggle it then it will start.

Why is my Chevy starter not working properly?

If the starter emits a high-pitched whine as the engine is turning over, more clearance is required. Add shims. If the starter growls and the engine doesn’t turn over easily, the gap between the starter drive gear and the ring gear could be too tight. In this instance, shim the starter.

What’s the best way to troubleshoot a starter?

Once you’ve identified which problem you’re dealing with, then you can start to remedy it. For all issues, the initial troubleshooting is the same: you start with the batteries. STEP 1 – Begin at the batteries: Charge the batteries and perform battery load test on the battery bank.

How does a high torque Chevy starter work?

The high torque starter utilizes a different case. As it pertains to the connection of the solenoid to the actual starter motor, although all solenoids are the same length, there was a copper spacer and longer screw used to make the connection in high-torque units.

How do you wire a starter to a Chevy?

How to Wire a Chevy Starter. A Chevy starter requires a lot of amperage, which in turn requires a large 4-gauge wire from the battery to the starter solenoid. The solenoid acts like a switch, opening and closing the high amperage circuit to the starter. The ignition key supplies the power to actuate a relay, which in turn actuates the solenoid.

What do you need to know about Chevy starter?

A Chevy starter requires a lot of amperage, which in turn requires a large 4-gauge wire from the battery to the starter solenoid. The solenoid acts like a switch, opening and closing the high amperage circuit to the starter. The ignition key supplies the power to actuate a relay, which in turn actuates the solenoid.

Where is the relay on a Chevy starter?

The solenoid acts like a switch, opening and closing the high amperage circuit to the starter. The ignition key supplies the power to actuate a relay, which in turn actuates the solenoid. Disconnect the battery terminals, using a wrench. Mount the starter relay. The relay should be mounted in the fuse relay box or close to the fuse relay box.

How does the solenoid work on a Chevy starter?

What happens when an ignition switch wears out?

Most ignition switches will activate the electrical accessories in the first position, power on the fuel and ignition systems on the second position, and crank the engine on the third. The ignition switch is used every time the vehicle is powered on and started. It will eventually wear out and begin to have issues.

Can a bad ignition switch cause an engine to not start?

The engine does not start. An engine that refuses to start can be another sign of a bad ignition switch. The ignition switch sends power to the the starter motor, engine controls, and ignition controls. These systems may not receive the power they need to start up if the ignition switch isn’t working properly.

What does the first position of the ignition switch do?

The ignition switch has several positions that power on different systems as the key is turned. Most ignition switches will activate the electrical accessories on the first position, power on the fuel and ignition systems on the second position, and crank the engine on the third.

What are the signs of a failing ignition switch?

Common Signs of a Failing Ignition Switch Engine Will Not Start. The problem here is probably: An anti-theft fault; Fault in the fuel pump circuit; Ignition circuit; Engine computer; If the anti-theft light is flashing, the computer is NOT recognizing the key or key fob and is; preventing the engine from starting.

Why do I have to turn the ignition back and forth?

This is what sends the security data to the Body Control Module (BCM) to allow the car to start. This part failing is very common on this car. If there is no security warning, then this is a possible ignition switch problem. This would explain turning the ignition back and forth several times. This action will usually cause a bad switch to correct

Can a bad ignition switch keep a Chevy Silverado from starting?