I have a 2004 chevy colorado. I was going to

Can't use it like that
Have to check Manufacture Bulletins
You got cylinder ring or valve issues
Those inline 5 cylinder motors has head problems
Google that & see what you can find
You could try a dealer just for the info,but I doubt
they would be honest with you

Change the 02 sensors and check for vacuum leak hoses evap , then disconnect battery and test again .

It could be th Camshaft Position Actuator Solenoid located on top of the engine check it out if oil in the plug then its bad and also on the part there is 3 sets of screens if any missing then the part is bad and screens will be in your oil pan so change your oil asap

Hello there
The location is the same you should have no problems.

Proporsche

This is for the 5 cylinder 3.5 liter engine in the Colorado

1. The drain plug is in the middle of the oil pan on the drivers side.
Use a 15 mm socket or box end wrench to remove the plug. Drain
oil.
2. The oil filter is at the bottom front corner of the engine on the passenger side. Remove the filter. Try not to tip the filter when you
remove it so you don't get oil on other parts of the truck.
3. Rub a small of oil on the gasket of the new filter. Spin on the new filter, 3/4 to 1 turn past when the gasket starts to seat. Hand tighten
only.
4. Reinstall the drain plug. DO NOT OVER TIGHTEN OR YOU COULD
STRIP THE THREADS.
5. Add 6 quarts of oil to the oil filler tube located on top of the engine
in the front and middle of the engine compartment. It shows the location
in the owners manual. Install the filler cap.
6. Start the engine and let it run a few minutes to fill the filter with oil.
Turn off the engine and wait a few minutes for the oil to drain down to
the bottom of the engine. Remove the dip stick and check oil level.
Checking oil level is in the owners manual.

at the very bottom of the engine there is a thing called the sump, this holds the oil, around there is the sump plug, i would have thought it to be around the back of it

The drain plug is located on the bottom of the radiator.

Most drain plug ismake of inexpensive nylon/plastic and it may fall apart while you turn it.

The professional method is to loosen the lower radiator clamp and drop to lower radiator hose.

Drain the coolant onto a large drain pan and recycle the coolant.

Try servicing your engine. It might need a tune-up or a change of oil.