I have a 2000 Blazer 2dr 4x4 with almost 84,000 miles on it, 2 weeks ago it stalled on me while on the highway, and repeated stalling. I managed to roll into an Autozone parking lot, where it would not not start anymore. I then call AAA and tell them my truck is dead, anyway, about an hour or so later it turns over and I'm able to drive it home. So after talking to a few people they tell me it sounds like it's fuel related; filter, pump, ect. That weekend, since I could hear the pump kicking on, I decided to change the fuel filter. (It looked like the original one it was so corroded.) I start it up and runs fine for the rest of the day. The next day it starts kind of hard, but i'm able to make it to work. Later that same day is where the truck won't start again, so there it sat till I had it towed to my Uncle's garage. Since the fuel pump was engaging, we decided that maybe it just need a good tune up. Now I have it back and I'm back to square one again. It began just starting hard in the morning, (had to pump the gas a few times before it would start) then it would run fine. Now it's back in my driveway and won't start. I'm at a loss right now, will the fuel pump still turn on if it's not working properly? Any Suggestions?

Sorry for the long story, just trying to be as descriptive as I can.

 

https://blazerforum.com/forum/showthread.php?t=23038

That should help you out. You need to do a fuel pressure and leakdown test. Its explained in the link. Basically key on, engine off should be about 65 psi and no leakdown within 10 minutes. Post back your numbers.

You can rent a fuel pressure gauge from autozone.

 

i had a similar problem with my 98 blazer and the fuel pump would stop working when it got to hot and if i waited 10 minutes it would start up and a few minutes later die again i changed my fuel pump and havnt had that problem anymore. is your fuel pump in your gas tank? if so does it die when you have a full tank?

 

Thanks for the replies, got it back to the garage, they were able to see the pressure drop off using the gauge and replaced the pump. All seems fine now!