QuestionThanks for your reply! I need to give you more info on this vehicle again it is a 94 S-10 blazer with a 4.3 vortec engine It is not a pick-up! sorry for the confusion. This vehicle originally had a no-spark condition, the I replaced the module within 24 hrs the module went bad. Replaced w/second module, each time I had fuel pressure and heard the pump run. The second module also went bad so I determned at that point that possibly there was a problem with the distributer. That was also replaced. Now I am finding that there is definitely spark but no fuel pressure at all! The pump does make the 2-3 second sound but there is no pressure what so ever. where can I find that fusable link wire? Not sure where it is located!Checked all fuses in fuse panel all are good. Battery voltage is fine. The fuel filter was replaced about a month or so ago! I am stuck! Any help would be great! Thanks again Audrey!
AnswerWell hello again Audry,
Sorry, my fault. You said Blazer before.
OK...fusible link...skip it. If you hear the pump running, the fusible link is good, although for future refference, it is usually connected to a direct battery voltage supply, like the starter post.
I see the fuel filter was replaced, but either replace it again, or cheaper, remove the line from the tank to the filter, and see if the pressure is available back there.
If the pump is running, but there is no pressure or fuel supply, I would just have to say the hose blew off the line inside the tank, and is just spraying fuel inside the tank for that two seconds.
The only other possibility is the tank is completely empty.
Any chance the bottom of the tank hit on something hard enough to jam it up against the tank and block the intake of the pump? Very long shot, and I don't even know if it is possible, since there is a screen on the intake.
Van
