It takes a scanner to read the codes.
Have vehicle scanned to determine the problem and have codes cleared
If the check engine light is flashing as you are driving it means you are about to destroy the catalytic converter(s). Stop the engine and get it to a garage.
Just disconnect the battery for a few minutes then reconnect.
The 2008 Chevy Express 1500 typically requires about 6 quarts of oil when equipped with the 4.8L or 5.3L V8 engine. If it has the 6.0L V8 engine, it usually takes around 7 quarts. Always check the owner's manual for the specific requirements for your vehicle.
The Chevy Express does not come with a built-in oil warmer as a standard feature. However, some models may be equipped with an optional engine block heater, which can help warm the engine oil in cold weather. If you need an oil warmer, you may have to install an aftermarket engine block heater. Always check the specific model and year for available options.
How do you reset check engine light for the 2009 Chevy trail blazer?
pull spark plugs cycle engine by turnkey or manually if water is spit out you were hydrolock
check your owners manual
You can either bring it in to a Chevy dealer or use a programmer/tuner to reset the check engine light.
You must have an engine scanner to do that.
The check engine light would illuminate and the code(s) would point to one or more of the O2 sensors.
The 2004 Chevy Express 2500 with a V8 engine typically requires about 6 quarts of oil, including the oil filter. It's always a good idea to check the owner's manual or the oil fill cap for the specific requirements for your engine variant, as there may be slight variations depending on the specific V8 model.