Hi new to the forum, looking for some help. I have a 2001 Blazer 4.3 L that I just had tuned up, new plugs, wires, filters, fluids etc.. on last Monday 03/25/08. Today the truck will not start. The speedometer is saying it is going 100 MPH standing still and the voltage meter is closer to 9 than 14. I am leaning toward replacing the alternator but wanted some input first, the battery is new also, changed it last week too.

thoughts? direction? any help would be appreciated.

thanks

 

Before replacing anything, I would have the alternator and battery tested at Autozone or Advance. No need to spend money when it's not needed!

 

fuel pump shot, need new one, thanks wolfpack.