2005 Peugeot 407 HDI - No fuel getting to engine

WAOFFROG

Member
Tadpole
Joined
Jan 27, 2016
Messages
28
Location
Mundaring, W.A. Aust.
There appears to be no fuel getting to engine, battery is good, but the priming 'bulb' under the engine cover is soft. Had the RAC attend and he used a rubber mallet, but that did not active anything.

In looking on the web it appears that it may be due to a fault in the fuel relay, or a blown fuse in the engine bay
 
Can you hear the in tank fuel pump operate for a few seconds when you turn the ignition on?

Its accessed via a cover under the rear seat. Lift the seat and listen for the pump.

Do the ignition on and off 10 times then try starting or check if fuel has made it to the fuel filter

No fuel pump sound then investigate if the pump has 12v reaching it. Fuese and connectors from there.

Sent from my SM-G900I using aussiefrogs mobile app
 
Morning WAOFFROG from the scant information supplied it seems likely that the vehicle just stopped whilst it was being driven and assistance was sought from the RAC which sent a man with a rubber mallet. Maybe you could seek a 2nd opinion from the RAC so they could send a fellow with a bigger mallet.
On the virtual certainty of it being the RHR engine the high pressure pump is driven by one of the camshafts and the fuel solenoid (which is sent power by the relay) is between fuel filter and the pump. Depending on what was happening prior to it stopping there is a likelihood of the 'fuel supply cut-off' switch being activated and requiring a reset by simply pressing down on the black/red rubber cover which lives near to the firewall on the passenger's side of the engine bay. A bad bump on a dirt/tar road can trigger cut-off activation. Whether or not that cures the dead engine issue, it still seems strange that the priming bulb is not becoming quite hard after a few pumps because with the fuel solenoid in its closed/default position the fuel can go nowhere provided that the bulb's non-return valve is working and there is enough fuel in the tank. If the hose from the bulb is disconnected at the filter it should be easy to pump fuel from the open end. It should be possible to test the coil of the fuel solenoid by using a multi meter or even very carefully hot wiring it. If it is OK then the fault is likely to be with the relay or the electrical circuitry which controls it.
 
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