[mike2004tct]

Originally Posted by mike8578

Hello, I have a few problems I need help with. I recently bought a 1999 Chevy Blazer LS 4wd 4.3. First of all, the gas gauge is always reading empty, and the low fuel light is on. The guy I bought it said it has been like that since the new motor was put in. I've posted several threads on yahoo, and everyone was telling me that it was the sending unit, so I had that changed, and needless to say its still not working. Any suggestions on what else this could be...ohh I did have the codes read at autozone before pump was put on, and when they reset the codes, the fuel gauge went up to full, light went off for about 10 seconds, and then back. ... And next question, the other day I pulled into my driveway, and the truck stalled, I tried to start it and it just rolled over, and over. I shut key off, and tried again...the 3rd time, i pumped the gas pedal twice...and it started right up...did it again today..didn't start until i pumped the gas...What would cause this???? PLEASE HELP!!

What type of pump/sender unit?

Get a fuel pressure gauge (~$20.00 for a cheap one) and tell us what your pressure is with key on, engine not running; engine idling, and how long it retains pressure after you shut ignition off.