Ok. I went out yesterday to start my blazer, it started fine. Went to the store shut it off when i came back out tried to start it and nothing. towed it back home. Put a new relay and fuel filter in it. I notice that when i put the key in the ignition i couldn't hear the fuel pump kick on. So my question is it the fuel pump or electrical?

 

How many miles? Do you still have the stock fuel pump? If so, that it is quite possible. Any symptoms before? Ever let the fuel run completely out or real close? That will kill a fuel pump.

Hope this helps!

Regards,

Thomas

 

no never let it below 1/4 tank. the pump doesnt look old. nice and white. the blazer has 163000 miles. i havnt ever replaced it. the day i got it out was the first time it did it.

 

Try hitting the bottom of the tank. A friend of mine is going through the same thing right now with his 2000 Bravada. He carries a rubber mallet around with him at the moment. He only needs his truck to start twice a day so he's trying to get to the weekend.

If it starts after hitting the bottom of the tank, then the pump is going.