Signs of a failing fuel pump.

[Jxfwsf]

No real signs to a failing fuel pump, sure sometimes they'll get noisy but most pumps make noise.
1 sure sign is the car will randomly stop and won't start, a whack to the middle of the tank on the bottom and it starts again knocks the brushes back into contact in the motor and it starts pumping again... for how long is pretty much random...

I'd be looking at mechanical parts of the driveline if there's thuds and clunks rather than be looking at fuel pressure problems.

Usually when a fuel pump goes it will just stay on when your priming the car to start... What does it do when you just put the key in on without starting it...

No it won't, it's controlled by the relay which is controlled by the ecu, if the ecu doesn't detect the engine running/turning over it turns it off after 1-2 seconds.

Sounds like your pump or maybe the computers dropped a tune they have bin known to do that... But most likely the fuel pump or reg...

WTF?!?! The program is held on an eprom, in no way is it common for these to fail. There is no bin (unless it's on the floor next to the ecu) I'm guessing you're referring to what you can download with the code to reprogram a memcal, it's only called that because it's a read/rip of the information from the memcal in binary format.

 

[ProbablyRaging]

Do you notice the shudder at take off or/and when travelling a certain speed?

Coil packs everytime!

What you explained sounds exactly like the problem I had in my VX a few months back.

Changed leads and plugs, got a little better, but then worse again. Bought new coil packs, hasn't happened since.

Also, after changing coils, acceleration off the line was a lot smoother.

I can bet you a case of beer it's your coil packs.

 

[Keegzzz]

Do you notice the shudder at take off or/and when travelling a certain speed?

Coil packs everytime!

What you explained sounds exactly like the problem I had in my VX a few months back.

Changed leads and plugs, got a little better, but then worse again. Bought new coil packs, hasn't happened since.

Also, after changing coils, acceleration off the line was a lot smoother.

I can bet you a case of beer it's your coil packs.

Alright ill get them tested and I'll let you know and get that case of beer on the way for you if your right

 

[Keegzzz]

No real signs to a failing fuel pump, sure sometimes they'll get noisy but most pumps make noise.
1 sure sign is the car will randomly stop and won't start, a whack to the middle of the tank on the bottom and it starts again knocks the brushes back into contact in the motor and it starts pumping again... for how long is pretty much random...

I'd be looking at mechanical parts of the driveline if there's thuds and clunks rather than be looking at fuel pressure problems.

Ill have the time next weekend to give the whole car a go over but ill specifically check the driveline and everything to do with that, ill post my findings and such, thanks for your input mate.

 

[ProbablyRaging]

Alright ill get them tested and I'll let you know and get that case of beer on the way for you if your right

Ill hold you to it! :beer chug:

 

[booniesVT]

Do you notice the shudder at take off or/and when travelling a certain speed?

Coil packs everytime!

What you explained sounds exactly like the problem I had in my VX a few months back.

Changed leads and plugs, got a little better, but then worse again. Bought new coil packs, hasn't happened since.

Also, after changing coils, acceleration off the line was a lot smoother.

I can bet you a case of beer it's your coil packs.

Mine has the shudders when idling and taking off like the windows down.I think you maybye right.

 

[Taranaki]

No real signs to a failing fuel pump, sure sometimes they'll get noisy but most pumps make noise.
1 sure sign is the car will randomly stop and won't start, a whack to the middle of the tank on the bottom and it starts again knocks the brushes back into contact in the motor and it starts pumping again... for how long is pretty much random...

The priming sound changes, but you can probably only tell for a ute with the tank right behind you.
When the pump is on its last legs, it won't deliver full flow, so you will find going up steep hill, engine loses power.

 

[waynethomson]

So I'm having issues with my car, can't get to the bottom of it anyways small things here and there are pointing towards fuel pump.
I'm getting a thud and shudder in acceleration feels as though it's coming from the rear, this accompanied with a high pitch squeal also coming from the rear. Anyways I'm wandering if that is a sign of a failing fuel pump and what are other signs? Thanks in advance

are you sure no-ones in your boot??

 

[Not a clue vu]

Mate I no this may be a little late but just had same problem with my ute. Turned out to be drive shaft that gave me the shudder