How do you reset the security system on a 1999 Chevy truck?
You need to turn ignition on and leave key in on position for ten minutes then turn key off then back on again for another ten minutes then one more time for a total of three times or 30 minutes and the system should relearn the key.
What would cause a Chevy truck not to start?
The most common reasons a Chevrolet Silverado 1500 won’t start are a dead battery, an alternator problem, or failed starter.
How do I reset my Silverado computer?
How to Reset a Chevy Silverado Computer
- Place the ignition key in the Silverado and turn it to the key on/engine off position.
- Locate the DLC (diagnostic link connector) on the Silverado under the driver’s side dashboard near the steering column.
- Plug the trapezoidal shaped plug of the OBD II code reader into the DLC.
Why does my Silverado hesitate start?
When your engine is hesitating, it is usually a symptom of a problem with the air to fuel ratio mixture. It can be because the mixture is too lean or there is a problem with the ignition system that is creating the misfire when the engine comes under load.
How do I get my Chevy Silverado out of theft mode?
How do you reset the Chevy Silverado’s anti-theft system? Insert the ignition key, put it in the on position, attempt to start the engine. With the key in that position, wait ten minutes. The security light will blink and go out.
How do you turn off anti-theft on a Chevy Silverado?
In a chevy silverado, you will try to reset the anti-theft system by turning the key on until the yellow lock goes out on the instrument panel for about 10 minutes. Turn the key off and do it 2 more times after 3 cycles, pull the key and put it back in.
What sensor would stop a car from starting?
A crankshaft position sensor (crank sensor) is an important device measuring the engine RPM and tracing the crankshaft position. The car won’t start if the crankshaft position sensor doesn’t work properly. The crank sensor can fail, or its wiring can get damaged. This may cause the car to stall or not start.
Why is my engine cranking but not starting?
Clogged Fuel Injectors If the car cranks when you turn the key, but the engine won’t start, it could be because fuel isn’t getting to the engine. One potential reason for this could be dirty fuel injectors. Over time, the fuel injector nozzles can become clogged with rust, corrosion or debris.
What Will resetting my ECU do?
Resetting your ECU is a popular myth. In reality, resetting your engine control unit (ECU) after modifying your engine isn’t necessary. However, resetting your ECU can help you fix a faulty check engine light or restore your car to factory setting.
Does disconnecting car battery reset computer?
A. It depends on the car’s age and type of ECU used. On some older cars, disconnecting the battery will reset the system but in most new cars it does nothing, except potentially reset the clock and radio station presets.
Where is starter on Silverado?
The location of the starter on the 2015 Chevrolet Silverado 1500 is underneath the truck, on the passenger side and behind the down pipe. The starter uses the engine’s battery to turn the flywheel and kick the engine to life, without it the truck would not be able to start.
How do I disable GM anti-theft system?
How do I disable GM anti-theft system?
- Leave the ignition key turned to the “On” position after the vehicle has stalled and will not start.
- Look at the dashboard and locate the theft system light.
- Turn the ignition to the “Off” position to disable the PassLock system, and wait for 20 seconds for the system to reset.