I have read the forum rules and I'm new to posting about this vehicle. so hopefully I can give enough info that everyone who responds can help me with an educated decision.

I have a 2001 blazer and have owned it for about 2.5 years. This is the first time I've had issues like this. I'll try to explain the events I feel are related coming up to this point.

Back in Oct, late night and fairly cold. my blazer wouldn't turn over, just clicked. so I'm thinking dead battery. Hubby comes to save me, got it to fire up, said it was a loose battery cable.

A few weeks ago, cold and snowy afternoon, after work, same scenerio. I go under the hood, wiggle the cables (although there weren't loose) tried again to start and fires right up.

A few days after that, coming into work at 5:30am, I get onto my exit, as I'm slowing down the engine starts to bog down, shuts off when I stop. restart it and its idling hard, put it in drive and it dies again and does this 3 more times as I make my way down the block to work.

now today as I run some errands, it dies as I come to a stop 5 miles after I leave home.

here are the things I noticed on my gauges in these events:

-my gas gauge was at a 1/4 tank when I left today and had the low fuel dummy light come on when it started dieing at stops. there is no way I used up a 1/4 tank when I get 60-70 miles out of that much fuel. (it has done this "out of fuel" trick to me twice in 2 weeks)

-my volt/battery gauge has been running on the high side recently. As opposed to right in the middle at 14, it's been between 14 and 19. I have not witnessed it bouncing extreme one way or the other during an event. doesn't mean it hasn't, I just have never seen it.

-it will instantly die when I put it into drive instead of leaving it in idle to die on its own.

what are my options to diagnose this? Can some please list what I should be looking for. Thank you!

 

I would take it to the parts house load test the battery then test the alternator. if your volts are as high as you say it might be overcharging the battery and damaging the electronics. anything past 14 1/2 volts is too much.

 

+1 from vegie_2: take it to Autozone, O'Riley's, etc to have the charging system checked-out and battery load tested. Electronics do strange things when under or over voltage.

After this, then report back as to how your Blazer is running. Could also be a stuck EGR valve (if the 2001 has one).

 

Than you. I'll keep you updated