Check the engine light comes on and off - 1995 Chevrolet Blazer

You need to get the computer trouble codes scanned
Check engine light on Part Ricks Free Auto Repair Advice

No, the problem lies elsewhere.
Get a diagnostic check done to identify the fault

My Engine Check Light Is Illuminated

The check engine light should not come on at all. If it does than you need to put it on a code checker, to find out the reason for the check engine light coming on. The light is known as the malfunction indicator light (MIL). When it comes on it indicates a malfunction in the system.

Check engine light comes on constantly nothing seems wrong or Check engine light keeps coming on and something is draining the battery..Which is it ?

Check engine light comes on and off, these are indication that there is some error code stored in your vehicles ECM. The engine module computer needs to be scanned. These will give the code and as per the error code the further problem can be detected and confirmed. The engine light indicator blinks or remains steady on dash when engine computer noticed any problem with any engine electrically operated components.

For more help, I suggest you to refer the help links provided below. These will let you know more about which areas to look, check, when there is engine light coming up on dash panel.

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Click the link below: -------

CHECK ENGINE LIGHT

http://alltypesofpartsreplacing.blogspot.com/2012/12/check-engine-lightengine-warning-light.html

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Check Engine Light Reset Procedure?
http://whoisbyme.blogspot.in/2012/06/check-engine-light-reset-procedure.html
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These will help.
Thanks.

If the check engine light comes on, then codes are stored. Get the codes read. Don't ask us to guess what codes are stored

Any time the check engine light comes on the traction control will be disabled and the light will also come on. Start with scanning the engine computer for trouble codes to see why the check engine light is on.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

If the check engine light comes on first, then the engine dies, check the computer for trouble codes.
If the engine dies first, normal for the check engine light to come on.
You will need to figure out if the engine is loosing spark or fuel or both.

The check engine light may come on later. When the check engine light comes on the computer in your car logs a code. This trouble code may or may not cause drivability issues. The computer in your car always tries to fix the problem. If the check engine light is not on, there is not a problem. It may come on later if it detects another problem. Changing the battery could have fixed some problems. The ground system on the cars cause a lot of problems for technitians. If the trouble light is not on, don't look to spend a lot of money to look for problems that the computer is not picking up.

could be your water temperature sensor