P reg 2.4 Toyota Hiace bleeding diesel system

[dubwarrior2]

I'm hoping somebody might be able to help me.
I've bought a 2.4 Toyota hiace from an old boy. Its bee looked after and in decent condition.
The guy told me its ran out of diesel and so he cant get it started.
Ive put half a tank of diesel in it, and primed the fuel filter with the manual plunger. Its full and I can hear the fuel sloshing round inside it.
Ive tried turning the van over and it turns over really well. Cracked off the fuel lines at the injectors but no fuel hecoming out even when I prime the filter at the same time.
So it seems no fuel is getting past the pump.
Any advice?
Been told it could be a fuel shut off valve/solenoid on the pump or just an air lock.

[colnerov]

Hi, If you can hear fuel sloshing around in the filter that means there is still air in there. Where the pipe goes from the filter to the injector pump, crack the pipe union open and pump the plunger until you get fuel coming out. When its there do it up, then if there's a bleed nipple on the top of the pump undo that. If not crack open the fuel return pipe that goes back to the tank pump again until fuel comes out. Tighten them up. Then crack open the injector pipes and turn the engine over with throttle open until the fuel comes out of there, it should then try to fire do, them up. If you can't get the plunger to pump the fuel it could be knackered, not unknown. Either replace it or try on the starter or plumb in one of the primer bulbs.

Colin

[dubwarrior2]

Thank you. Do you know if the pump will have one of those electric cut off valves? Seems like quite an agricultural unit

[kevstarlet]

What year is a p reg? The 84-89 model had no fuel shut off.

[dubwarrior2]

Its a 95 I think.
Have removed pipe from filter to pump and primed by hand. Fuel is definately coming through to pump.
Need to charge batteries before cranking over again.
Should I try a blast of easy start?

[dodgerover]

Might be better using wd40 rather than easy start as you'll need to keep giving it a bit to keep it running till it self bleeds, only do that if you are 110% sure you have diesel into the pump, you don't want to be running it dry for any length of time, crack one of the injector pipes off while spinning to allow it to bleed off the air easier.

[bortaf]

May 25, 2016 7:48:46 GMT kevstarlet said:

What year is a p reg? The 84-89 model had no fuel shut off.

how do you stop the engine then ?
propper question not doubting you just wondering how you stop the engine without a fuel shut off ? air flap?

[dubwarrior2]

I'm a bit concerned that, at the moment I am priming the filter as much as I can til it goes hard, but a short time later I am able to pump it again.
Seems there may be an air leak in the filter housing or plunger button that I need to rectify first.
Can anybody tell me what the engine code is for the 2.4 non turbo? I have searched but google is a bit clueless on toyota hiaces unless its the J imports

[stonyray]

Engine Code is 2L, Yes it will have a diesel stop solenoid, try applying 12V to that,

Maybe replace all the fuel lines and the filter as well.

[dubwarrior2]

Thank you. The pump is a bit of a pig to get at on this.

[stonyray]

Will it run on maintenance spray (wd40/gt85 etc)/easy start?

[dubwarrior2]

Its occured to me that I'm doing this all wrong. I'm priming the filter with button til it goes hard but Ive left all the pipework connected. If there is any trapped air in the filter, it has nowhere to go and is just being compressed. That would explain why I cant feel any pressure a short time later. Doh!!!
Will try again with pipe to pump removed.
I hate being stuck at work when Ive got things to do at home.

[stonyray]

May 28, 2016 10:34:22 GMT dubwarrior2 said:

Its occured to me that I'm doing this all wrong. I'm priming the filter with button til it goes hard but Ive left all the pipework connected. If there is any trapped air in the filter, it has nowhere to go and is just being compressed. That would explain why I cant feel any pressure a short time later. Doh!!!
Will try again with pipe to pump removed.
I hate being stuck at work when Ive got things to do at home.

Not so, the system is a loop, you are pumping the diesel into the pump, and the air returns to the tank. Good plan though to check the pump is getting fuel, also crack the pipes off on the injectors and crank it over diesel should flow out of the cracked off steel pipes if not you're pump isn't pumping, sometimes you can't get the air out of the steel injector pipes by priming.

[bortaf]

Ok as it does have a fuel shut off i'd make sure that's not stuck, remove the wire and with the ign on flick the wire over the connection and listen for a click as the solenoid lifts the plunger, if there's still no fuel at the pipes and if you can get at it remove the plunger from the stop valve, it will take the stop valve out of the equation ? you'll have to stall it to stop it though or as suggested try running it on brake cleaner of WD down the air intake, running it for a few seconds on that may well give the extra revs to get the main pump priming ? a totaly empty pump can be a right pain to re prime, that is if that's the issue and it's not that the stop valve packed up it will give similar results to running out of fuel? as will a blocked fuel filter of a lift pump with the lift diaphram holed?
TBH in a case like this i usually bypass the filter and lift pump and plumb in a grenade type pump and start from there.

[eurasiaoverland]

Trace your problem backwards towards the engine. I have a 2L and it has never needed manually bleeding (e.g cracking injectors) if it has run out of fuel, or had work done on the fuel system (e.g. filter change). I'm inclined to say that there is a problem somewhere if it is not catching after repeated cranking.

Get a jar of diesel and see if the engine is taking diesel upstream of the filter housing (these sometimes start to leak with age, check that the filter is tight on the bracket before condemning though).

Then bypass the filter straight to the pump. Below the fuel cut-off solenoid (i.e. if you unscrew it) is a small strainer; this might be blocked if the PO has run the tank dry and there was curse word in it.

If the solenoid is operative, the strainer clean and the pump is not drawing fuel, either there is a defect in the pump (highly unlikely), or the ignition switch is not activating the solenoid. In that case, see if the solenoid is getting 12v when cranking. This should identify where the problem is.

Even if the pump is dry inside, they have an internal lift pump and will bleed to the fuel return after sufficient cranking.

[dubwarrior2]

Thanks for the replies. Cant wait to get home and get stuck in. Ive looked at some pics on google of the 2l pump and mine looks different. On the pics I have found, the cut off valve in on the top of the unit. Mine isnt. Not durecwhere mine is. Cant see any electrical wiring going to pump. Need to get underneath and check.
Also, with regards to the fuel filter bracket. Priced some replacements up.on ebay but they don't have the wiring senser on the top. Any idea what this senser is? Fuel temp? Thanks for all your help so far. Bought some easy start today. Last resort though

[eurasiaoverland]

There will be at least one solenoid, should be on the back of the pump above the injection lines, single wire. On a '96 there is probably a second solenoid lower down, don't worry about this one. If your Hiace has a tachometer there will also be a signal connector on the side (engine-side) of the pump.

As for the filter bracket, I wouldn't buy a replacement just yet, do some testing first. The wiring connector is a a vacuum switch which activates when the fuel is very thick (i.e. cold) and switches on a small fuel heater in the filter housing. The imported Surf parts don't have this as they were Japan-spec and didn't have the fuel heater.

Good luck!

[dubwarrior2]

Update-
Fuel coming through pipes to pump when hand primed-yes

12volts to glow plugs- yes

Sprayed easy start down inlet while my dad turned it over and it ran for a few seconds. Makes a hell of a noise. Slackened fuel pipes and cranked with more easy start. Again it fires briefly but nothing at all coming from injection pipes.

Tried turning the ignition key a few places and listening for a click from fuel pump but nothing.

The button on top of the filter doesnt stay firm for long.

Trying to identify the solenoid on the pump but access is rediculous.
Have found one electrical connector that terminates at a black box on top of the pump. 3 wires that then connect to 2 then to the black box.

Took cap off fuel filler and it was pressurized.


This was meant to be a fun project haha.

Thats as fas as I have got because the batteries are dead again.

[dodgerover]

Try some wd40 or lynx rather than ether to keep it running, if all else fails give it a tow? How much derv is in the tank, I've had to stick 15l in before to stop them sucking air.

[dodgerover]

Other thing to try is priming whilst cranking the engine. You definitely need a decent battery though