2012 JAGUAR XF 5.0
first, I heard a lots of electrical noise above glove box before engine start, but soon it cover the sound because of engine sound. Is it normal to happen?



Secondly, While I was driving engine stop suddenly without sign, so I stop my car on side street to restart the engine but the engine didn’t back on. Then I checked the car if there is anything wrong, and found that fuel pump relay was heating up. So I plug off the fuel pump relay to cool off then put it back then engine was start up again. Since fuel pump relay was the problem I bought new relay to switch over but still there is problem plus no error code show (only show as OBD; P0232 fuel pump secondary circuit high) and no engine light

If electronic wire shot parts are problems, I don’t know which order to fixed or check out the problems. I was think to going to auto shop but I can’t trust them either.

 

Check your fuel pump fuse in the trunk (Fuse 25).

 

fuse is all fine

 

Next thing I'd be checking is wiring to the pump then. There are 3 fuel pumps on your car, an electric one in the fuel tank, and then 2 mechanical high-pressure fuel pumps on the side of the engine that are driven off the camshaft. The most likely suspect is the electrical one in the tank so the first thing to do is to get access to it - remove the rear seat bottom by finding the plastic levers underneath and pushing them towards the center of the car, this will let you raise the cushion. Pop off the cover behind the passenger seat and you should see the wiring to the fuel pump and level sender. Check that this plug is in firmly, you could also unplug it and check that you're getting a voltage to the pump with a multimeter, looks like pins 3 and 4 according to the wiring diagram but they'll probably be easy to spot with thicker wires.

Can you hear the pump run when you turn the ignition on or try to start the engine? If not, and you're getting +12v to pins 3 & 4 of the fuel pump connector, then I'd suspect a faulty fuel pump. Pain to change as it's held in with a ring that (on my car at least) required a special tool to remove, although some have apparently got theirs off with a hammer and screwdriver.

 

thank u
I will try this

 

 

 

lubricant cleaning

 

Nicely found!