YOU MIGHT WANT TO START LOOKING FOR AN INTAKE GASKET LEAK, NOT A FUEL DELIVERY PROBLEM
Remove Your Air Filter, If You See A Liquid Squirt or bubble up, Or smell gas, then its the plugs
What is the problem? Why are you limiting the problem to those 2 areas of concern?
If it is the electronic fuel pump that is the problem you will not hear the fuel pump humm as you turn the key in the ignition. Replace the fuel pump which is located inside the gas tank.
after you have replace the pump and it doesn't humm what else could be the problem
the fuel pump could still humm but it could be weak. there is a pressure valve on the fuel line behind the intake. put a pressure tester on it. if it is over 45 lbs. then your fuel pump is ok.
how do you tell if your fuel pump is working
First is the pump good? Next is there power to the pump?
try bypassing the fuel pump, and directly injecting fuel, this will tell you if the problem is the pump, the lines, or further ahead
You need to tell us what the problem is(wont start, backfires,etc.)before we can give you an idea to try.
No. Tell us what the problem is you are having.
The fuel pump will not come on. Of course this could be a blown fuse or the pump itself has failed. Check the fuse and if it is good then install a new relay to see if that solves the problem. If not the pump is bad.
Problem could be one of many things. First and foremost is the intertia switch. Check the fuel pump inertia switch (in trunk mounted to driver side trunk arm) to make sure its not kicked. If the problem is not there, than either the fuel pump relay is bad or there is a bad wiring connection in the circuit.
if its bad fuel pump will not work,exchange it with another relay of exact same size to check if that's the problem..
turn over engine with gas line to carbs disconnected fuel should flow from line.if not either no gas or pump not working
problem is most likely the fuse or open in fuel relay.
You can tell if your fuel pump shutoff switch is bad, if the fuel pump does not shut off when you flip the switch. You can also tell if the switch is bad by looking at the wire connections.
You can see by syphoning some out or taking the fuel pump out and getting the fuel gauge working.
Check your cam shaft position sensor. I had a similer problem
A lot of people will tell you that it's the fuel pump which is inside of the fuel tank. If you change that and it still wont start then it is the fuel pump wiring harness. 99% of the time this is what it usually is. The wiring harness plugs in to the top of the fuel pump. I would just change both while you have the fuel tank down to save yourself time. You can get both at any auto parts store. You have fuel at the engine and there is spark from the plugs? If you have fuel, air, spark and it is in time, it has to run. You have spark in the wire, have you pulled the plugs and checked them. They may be fouled or worn out. Timing could be off, but it should at least try to start, backfire or something. Check the plugs and get back to me if that isn't it.
well if you have fuel and a new filter a good fuel pump relay and the wires going to the fuel pump have power and no fuel pressure you need a fuel pump
I can tell you the fuel pump is in the gas tank.
A fuel pressure test done at the fuel rail will verify the condition of the fuel pump. Before going to that much trouble check the fuse, and fuel pump relay. If either one is defective the fuel pump will not function.
You will have to remove the fuel pump relay or the fuse for the fuel pump. You did not say what year it was, so I can't tell you where it is. SORRY.
It would be easiest to just replace the relay first it's only about 10 dollars at the parts store. If you still have problems then try the fuel pump.
Have the fuel pressure checked. If the pump is noisy it is failing. do not forget to replace the fuel filter. A clogged fuel filter will appear as low fuel pressure, and overwork the pump.
You can test your automotive mechanical fuel pump with a diagnostic tester. The diagnostic tester can tell if the fuel pump is operating properly.
A fuel pressure test can determine if the pump is working properly or not.
If you hear the fuel pump run that is a good sign it is working however, a fuel pump pressure test would tell you if the pump is meeting the required pressure.
If you hear the fuel pump running, then start by replacing the fuel filter. If you don't hear the pump, check the fuse. A fuel pressure test will verify if the pump is good or not. It can also be a fuel pump relay or in rare instances a defective ECU.
do fuel pressure test