What would cause a fuel pump fuse to keep blowing?
The most likely cause would be a failed pump. Fuses are over current protection devices which means that you either have a short to ground (possibly intermittent) somewhere in the circuit or enough added resistance in the circuit that the current drawn by the pump is enough to blow the fuse.
Can a fuel pump relay work intermittently?
It is the job of the fuel injector pump relay to supply a steady flow of electrical current to the fuel pump. If there’s something wrong with the relay, you can expect the fuel pump to fail intermittently. The good news is it’s easy to check for a broken injector pump relay.
What are signs of a bad fuel pump relay?
Here are the symptoms of a bad or failing fuel pump relay
- Engine stalls. One of the first symptoms of an issue with the fuel pump relay is an engine that suddenly stalls.
- Engine does not start. Another symptom of a faulty fuel pump relay is an engine that does not start.
- No noise from the fuel pump.
What causes the fuse to blow on a fuel pump?
I would start at the fuel pump itself. If the fuse blows as soon as you turn on the key, undo the connector at the tank to the pump and put in a new fuse. Try it again, if the fuse pops then your short is before that point likely a chafed wire on the body. If the fuse stays good then the problem is in the pump harness or the fuel pump itself.
Where is the fuel pump fuse box located?
The engine’s or the dashboard fuse box is usually a long black box containing a fuel pump relay and various other fuses and relays. For different vehicles, the fuel pump relays can be located in different places.
What to do if your car blows a fuse?
If your car blows a fuse: Consult your car’s owner’s manual to find the location of the fuse box. The assigned circuit for each fuse should be shown in a diagram.
What are the symptoms of a bad fuel pump relay?
A bad fuel pump relay can cause many different symptoms. Here are the most common ones The fuel pump relay is an important component of the fuel system of your vehicle. The fuel pump relay gives the fuel pump power when it is time to build up fuel pressure in the rail.
