Common questions

How do I reset my engine lock?

How do I reset my engine lock?

Insert the ignition key and turn it to the on position and then attempt to start the engine (crank over), the engine wont start. With the key still in the run position wait 10 minutes and the security light should blink and then go out. Turn the key off and wait 5 seconds.

Can a check engine light go off by itself?

Will the check engine light go off by itself? Yes, The check engine light will reset itself after a fixed amount of time if you fixed the problem in most car models. Usually, this is 10-30 cycles. One cycle is from a cold start until the engine is at working temperature.

What does it mean when your engine won’t start?

Vapor lock doesn’t mean your engine doesn’t turn over, but your engine won’t start. Vapor lock is a fuel system problem, usually found on older cars with low-pressure fuel systems. When gasoline in the fuel lines or fuel pump turns from liquid to gas, it starves the engine of fuel and it stops running.

What should I do if my car won’t start?

If nothing happens or the engine starts and dies, the security light will be flashing. Leave the key in the On position and wait ten minutes. The flashing light should go off or illuminate without flashing. When it does, turn the ignition off, wait twenty seconds, and then try to start the engine. If it starts and runs, everything is okay.

Can a worn spark plug cause an engine to shut off?

Speaking of spark plugs, worn or fouled plugs can cause a variety of issues including an engine misfire and hesitation under heavy acceleration. A worn coil can exhibit the same symptoms, and can cause the car to shut off unexpectedly. A quality spark plug costs between $10 and $20, while a coil is generally in the $50 range.

How do you shut off a check engine light?

With the key in the ignition, turn it to the first notch. Reverse the actions of the first step by plugging the PCM fuse back into the PDC. Go back and start the truck to make sure that the check engine light has been shut off. If it didn’t work, try again. Once you’ve got it to work, put back the cover for the PDC and close the hood of your truck.

Why does my check engine light not come on?

The light should automatically come on when you turn the ignition key to “ON” position and should go out when the engine comes on. If it refuses to come on, then the issue may be from the bulb. In most cases check engine lights ground via the ECM. So, if the bulb is okay, then it could point to an ECM defect.

What makes a Chevy security light not start?

The only coded components are the lock cylinder housing (also called the ignition switch) and the BCM. I also guess but don’t know for sure but maybe a worn key or lock cylinger could make the ignition swich think the lock is being forced and keep it from starting?

What to do if your Chevy truck won’t start?

Attempt to start the truck by turning the key to the Start/Run position. The passlock icon, a vehicle with a lock on it, on your dash may be flashing. Try to crank the vehicle. 2. Observe that the vehicle fails to start and the passlock security light is illuminated or flashing. 3. Release key to the ON/RUN position (not the ACC position or OFF)

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Ruth Doyle