My 2003 Chevy Silverado 2500 4x4 check engine light flashes randomly and different number of flashes each time like some sort of code is this posible?

check your inj and use a noid light go by auto zone thay now will check your codes for free then we can go father

what codes? will probably be a 300 - 308 or a lean code. need codes could be bad plugs or wires could be fuel filter or pump. without codes cant tell. also when check enging light flashes it means stop as engine or cat damage could result

check high tention coil wire, coil wire going to dist cap with test light, if test light light up, it good also check dist rotor, and if that good might be pick up coil , the module might be bad, let me know what happen Bob

Check for vacuum leak.Check all vacuum hoses and especially around the intake manifold these motos are prone for intake gaskets leaking.This will cause a code P0300.HOPE THIS HELPS!!

There should be an aldl (assembly line data link) plug under the drivers side of the dash. Ground the A and B terminals and turn the key to the run position. Count the number of times the check engine light flashes.

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check the spark plugs just pull one on each side i bet you will find one very black and the other very clean if this is the case on the side you find a dirty one they all will be dirty. now to fix this you will have to replace both of the o2 sensors on that bank Chevy has an issue that when an o2 sensor goes bad or is shorted due to water entering the connection and the computer doesn't know how to control the fuel per that bank.after you do this you will have to drive it hard to clean out the carbon in the cats after a few trips it will clean up i have been there with three chevys.

DTC Number
P0160 DTC Name O2 Sensor Circuit No Activity Detected Bank 2 Sensor DTC Number P0300 DTC Name Random/Multiple Cylinder Misfire Detected

When the light comes on without flashing, it just means an emissions problem, when it starts to flash it has become more serious. I suspect that there was an error putting the plugs and or wires. That computer can determine if there is a misfire and it will put out a P040X, code where X represents which cylinder is the problem. This will help you not have to take each one apart. If there are more than one, check each number.

Ex. P0401 means there is misfire on cylinder number 1

P0400 is a random misfire detected.

If you take it to an Advance or Autozone they will usually scan if for free.

By the way, if you used cheap plugs instead of platinum plugs that could do it too.

Hope this helps.

2003 chevy silverado
A picture of a engine is on the dashbroad, what can I do to get it off.
Rita

Black smoke could mean it is running rich, have a scan done, it is probably an engine misfire code and it will tell you which cylinder is misfiring. the last digit is the cylinder, unless it says random missfire, It may be time for a good tune up and don't forget the fuel injection system, Clean out the intake and do an induction cleaning on the injectors.