1996 Chevy Blazer - I just noticed the clock light staying on. My battery is draining (just got a new battery already drained. truck has not been moved). What would cause the light to stay on and how do I fix it? Could it be an ignition switch problem?

You have an electrical short somewhere that is alowing electrical components to stay powered and drain the battery.

A short on the wiring that goes to the compressor , by removing the fuse you have broken the loop and stopped your short to ground.

Already advised.

You need to do a parasitic load test.(this will require a DC ammeter).I prefer to test with a clamp-on type meter for a faster draining condition like this.Most people don't have this kind of test equipment,so the only other way is to just look for things staying on.A battery draining in 24 hrs is probably a 1-2 amp load.Try looking at the trunk light(gotta start somewhere).I have found glove box lights,vanity mirror lights,and underhood light staying on before.(I even remember a Chevy Blazer that had a 16 amp drain because the rear wiper motor wasn't parking correctly!)If there isn't anything obvious,then pull one fuse at a time until the battery drain stops(start with things you can drive the car without).

i have a 99 chevy blazer..the rear wiper motor is blown..i dont want to pay for a new one, since i barely use it..so i just opened up the fuse box and removed the fuse..easy fix..let me know if this works :)

i had this problem on my 96 blazer, it turned out to be the timer that turns off the interior lights after 15 seconds, it would turn off the lights but not all the way, it would sit and drain the battery.. an easy way to test for an open circuit yourself:

Connect one end of the test light to the negative terminal of the battery, and the other end of the test light to the end of the negative battery cable, so that the light is now "inserted" into the circuit between the cable and the battery.

Step 3 Check the intensity of the test light. A faint glow is normal and indicative of the small current used to power the cars computer and clock. A bright glow means you have a significant battery drain that needs to be repaired.

Step 4 Leave the test light in place, and begin to remove fuses one at a time from the fuse panel. Check the test light after you remove each one. If the light is on, replace the fuse and move on to the next one.

Step 5 Pinpoint the circuit that is causing the battery drain when you pull a fuse and the test light goes out.

Turn the igition to on,then off.Pull on the key while the igition is in the lock position at the same time turn the steering wheel left to right.The steering wheel will move slightly while in the lock position

No, the fuel pressure valve may be stuck open so that the fuel pressure is too low when you start up, but the pump keeps up after the engine starts...
The fuel pressure valve is draining the fuel back into the fuel tank when the Blazer is parked.

What normally you have to look for is that your belt is running properly because your car might be running a lot more off the battery and not so much of f the alternator, but normally if the alternators bad it will drain the battery even if the cars not running.. Yes your first thing you would want to do is check the wiring and al that just because thats cheap and easy but most likley you wanna get the altenator tested...you can get that done at advance auto.. please rate me if you get a chance and if you have any other questions just let me know ill check up on your problem..

Thanks,
Steve