What could be the causes of fuel related no start and how will you test the fuel pump?
Bad fuel pump (Pump should run for a few seconds when ignition key is turned to start; no buzz means no fuel delivery to the engine). Blown fuel pump relay (Relay is energized by (PCM) to route power to fuel pump when ignition is on). Plugged or Pinched Fuel Line (Inspect fuel lines under vehicle for damage).
What causes a car to have a no start?
The electric fuel pump (located in the fuel tank) is the key component that supplies the fuel the fuel injectors need to inject gasoline into the cylinders. When the fuel pump fails, it will cause a no start condition. Thankfully, the fuel pump can be tested with a fuel pressure gauge to make sure it has really fried. 3.) Engine Mechanical System
What to do if there is no fuel in the engine?
If the engine has an overhead cam with a timing belt, loosen the cover over the timing belt and check the belt. If the belt is okay, the problem is no fuel. Listen for the electric fuel pump in the fuel tank to make a buzzing noise when the ignition is turned on (you may have to open the gas cap to hear it).
What causes the fuel pump to not start?
Diagnostics can now be focused on the fuel pump circuit to determine if the pump, relay or wiring is causing the no start. If the relay has voltage but the pump isn’t running, you’ll probably have to drop the fuel tank to check the wiring connector at the pump.
What to do if your car wont start after out of gas?
Ensuring the Engine is Getting Fuel Add fuel if the vehicle’s out of gas. Look for signs of jerking as you drive before it dies. Check to see if the vehicle will start again after a few minutes. Replace your fuel filter. Test your fuel pump.
What to do if there is no spark or fuel?
If there is no spark or fuel, then the first thing I would do is check the vehicle’s fuses and relays, particularly the EFI main and ignition relays. It may be possible that one of these components has failed and is cutting off power to the vehicle’s ignition and fuel systems.
What causes a car to not start with no gas?
Problem may be at wiring connector on top of fuel tank (hard to reach!). No gas in fuel tank (Check the fuel gauge, and keep in mind the gauge may not be reading accurately). Bad gas (Contaminated with water or too much alcohol or diesel fuel). If you just filled up with gas and now your car won’t start, suspect bad gas.
Where to check for no start fuel pump?
The first thing you want to do is check the fuse panel to see if the fuse is blown. If your car has two fuse panels than the one in the engine compartment; should be the correct one to check. The fuse panel or circuit box is usually located near the battery; and is a small black box with a removable lid.
What are the warning signs of a fuel system problem?
The big thing to note is that most of the failure warning signs; are the same for most fuel system problems: 1 Hesitating Engine 2 Stalling 3 Not Starting 4 Hard Starting 5 Different Performance at Different Speeds 6 Engine Misfiring 7 Engine Sputters at High Speeds 8 Loss of Power When the Vehicle Is Under Load 9 Surging 10 Decreased Gas Mileage