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Possible fuel pump issue causing fuel to drain back into the tank. Check valve inside pump may be bad. Once vehicle is turned on it may take a few seconds to prime up the fuel lines until operating pressure is reached. Put a pressure guage on the fuel rail and start the vehicle. Should be approx 55-60lbs running. Turn off vehicle and leave it sit with guage attached and monitor for pressure dropping off to 0. If so, suspect a bad pump
I would think its a fuel problem.
Try changeing the fuel filter and the air filter but just remove that for now .
The filter is in line drivers side under the drivers door area and is not easy to do but not expensive under 10 dollars .
When you get it off and have gas all over you don't smoke .
Take a plastic soda bottle put it over the line comeing from the tank put the key on run not start .This should make the fuel pump pump if an electric pump.The pump is mesaured IN FLOW PRE MIN and its high because it has return line to the tank if its fuel injection.
So if in 10 sec. 4 to 5 ounces out put the pump is vary good .
If not the pump isn't supplying enough fuel to the system
There are other issues like the fuel injection system and the pressure regulator.
I owen a similiar vehicle you just never what will go wromg NEXT .yet my 30 old ford ranger runs like a new vehicle I fix it of course
the fuel pump is only designed to run until it reaches a preset pressure. once it reaches that pressure it turns off. One way I know to check it without dropping the tank is to remove the fuel filter. Put the fuel line in a gas can so you don't get gas all over. turn the key on if the pump keeps pumping fuel then it's not the problem. at that point I would buy a new fuel filter because it may be clogged and the reason no fuel is getting to the engine and they are inexpensive and a good idea to keep changed anyway.
You could try changeing the fuel filter its located under the drivers door mounted to the frame in the fuel line . But the most likely thing that it could be is the fuel pump. You could check fuse # 9 its a 20 AMP in the fuse box that feeds the relay located in the glove box but on this vehicle even if the relay wore bad the vehicle would still start it would just crank for a longer time . the fuel pump has a beck up power supply also feed from fuse #9 that runs through the oil pressure sending unit. So if its not the fuse its the pump or a bad connection at the pump and that is located inside the fuel tank witch needs to be droped to replace the fuel pumpGood luck with it but this is a common issue with blazers
If there was no Pressure or fuel in the line then the pump is defective. Did you half to bleed the fuel line pressure off to get the filter disconnected from the fuel line. Can you hear the pump run when the key is on, you should be able to hear it run. And if you can hear it running then you can check the fuel pump pressure the motor does not half to be running to do this. Good Luck and have a good XMASS.
What does changing the oil,changing filters etc,have to do with the vehicle not starting?
What actual testing was done on --battery,alt,starter.fuel pump,etc.,how was this testing conducted and what were the results?
No fluids are consumed, in any motor vehicle,
If you have to top off,you have a leak,repair it!!
Do you have more than 4 gallons of gas in the tank? Some models won't **** to prime with less than that in the tank. This is mostly an issue when there is air in the lines. There is usually a screen filter on the pick up, but blowing that out should have taken care of it at least for a few days. Another possibility is a pinhole leak in the line between the tank and the pump. That lets the pump **** air, which will not let it **** gas. There could be a larger in-line filter between the tank and the carb filter. Let us know if you find out what it is.
spray quick start. If it starts you know you have a fuel issue. If it doesnt start you have an ignition issue. If you have no fuel pressure or ignition spark then most likely its a crank sensor issue. If you have a timing light that can show low RPM values then cranking you should have 100 to 200 rpm and the light should flicker. If no flicker then you have some sort of ignition issue.
Sounds like no gas reaching the motor. Could be fuel filter or fuel pump. I would recommed you disconnect the fuel line and start car to see if fuel is coming up if it is then ur injectors r clogged or no good if nothing comes up u know is pump or filter I would change both.