I have a '97 Blazer, it has about 140,000 miles on it and has had a tune up recently. I also replaced the fuel filter. When driving it will randomly stall, quite a bit. It will do it when braking, accelerating, or cruising, and it does it on the expressway and city roads. When it does stall, it normally starts right back up. It doesn't sputter or anything, just shuts down. Does anyone know why this might happen?

Thanks

 

How the fuel pump? Does it stay on?

 

I had a 94 dodge intrepid that did the same thing to me so maybe this will help. I had to change out the crank shaft sensor. Good luck!