406oc.co.uk

I have a 1999 2.0 hdi (90bhp) which is causing me trouble. Anyone any ideas as to the problem?

The car was bein driven with little diesel and it was assumed that it ran out as the needle was at the bottom of the red square. When driving up the road the engine management light came on and the car just spluttered and cut out.

After putting diesel in the tank and the filter enclosure the car would still not start. There is no diesel coming through the pump but the switch is turning on. Id assume this is an electronic problem? anybody with any ideas as to the problems and possible solutions? Electronics are hard to grasp but i have good knowledge of the old d-turbo setup so any practical solutions appreciated also!

Cheers

Marty

can you bleed it

Hi.

Turn the ignition on but do not start the engine. Is there a buzing from under the back seat? This would be the low pressure pump in the tank pressurising the system. If you get no buzing, that could be the problem. When they get on a bit they don't like running out of fuel. As a temp fix try tapping under the fuel tank with a lump of wood etc to see if you can wake it up. Good luck.

Richard.

turn the key (the last turn, but not starting it) hold it for 10 seconds

repeat a couple of times

then try and start it, once started the light will eventually go out

Cheers for the help above, but still nothing happening... the car is just turning over but not starting

@ busman... the low pressure pump is definately going and is buzzing like it should

@406silverhdi... Tried hwat you said but no go... still just turning over

Cheers for the help and any more ideas and help would be appreciated!

If it ran out of fuel ,when you put some in you should,as stated ,turn the
key to ignition but not far enough to turn the engine over at least 6/7
times this primes the system with fuel.
If you removed the top of the filter housing to add fuel you could well have
introduced more air into the system,try holding throttle pedal flat to the floor
while you turn it over it may push the air out.When it does start and you
run it normally the light should go out as stated.

Sometimes these can be a beast to start after running out of fuel, even if you fill up the filter housing.

Do you have a hand pump inside the drivers inner wing, or on top of the engine?

If so, undo the pipe going to the injector pump and pump it until diesel floods out, put the pipe back on and try to start it, I find with the difficult ones that you are best to try to point the front of the car downhill, or jack it up at the back to allow fuel to flow to the front easier.

You may also need to undo the injector supply pipes until diesel comes out when you pump it.

If you haven't got the hand pump, buy or borrow one.

I once had a 406 that took me 2 hours to bleed up and start, the only thing that worked was pushing it until it faced downhill.

I have used an airline wrapped in a rag stuck into the fuel tank as well, that works on the older Fords without hand pumps.

Just a suggestion as the hdi engine has a self primer . Ie older pugs you had to squeeze the rubber pump under the bonnet when changing the fuel filter to bleed it and remove trapped air. How about unscrewing the bleed valve under the fuel filter housing and hopefully remove trapped air in the system. Not really sure but worth giving it ago.

If that doesn't work you may need a new high pressure pump as I have heard these dont like any crap running through them at all. And just the smallest amount of crap and they pack up.

Sorry to say . hope its just the first just trapped air.

Rappy .

Cheers for the help lads but looks like ill be needing a new pump.... Nothing is working. haha


Just an idea, but i have 2 D-turbo engines lying in the yard for 406's, both of which start first turn. Would there be much hassle in changing a HDi to a Dturbo. As far as i can see the HDi has a hydraulic clutch, is this much hassle to change around?

Would the electrics swich over without much hassle? The old enginge had ABS so would this help?

Also, the throttle is different on the HDi engine. Would it be much hassle to change it over?
The Car is the D8 shape by the way.

Help appreciated, money is tight and if i can put in an old engine without too much electrics hassle then id go for it!

Cheers all,
Marty

Week 2 without a car and the bus is really starting to wear thin

Well i got the hdi hooked up to the computer to see what the fault was... The mechanic reckoned that it was the back fuel pump as said on here but i got the cak seat pulled out to see what was happening and pop she goes... the buzzing was coming out of the small pressure pump...

My question is... should the fuel pump at the back pressurise and buzz every time i turn the ignition as this only seems to happen the odd time?

Thanks

Yes it should buzz every time.

What if it pressurizes the system, then you turn the power off and straight back on again? Would it still buzz?

Maybe buzz isn't the right thing, maybe that's the armature vibrating in knackered bearings I suppose the only way to be sure is to disconnect the plumbing, hook up a hose of some sort and see if it's actually pumping. I've no idea how much pressure the lift pump produces so I don't know if this is dangerous or anything.

hmm well i think its actually going because when the ignition is turned on you can hear the pump switching on and fuel gushing through... Also i jacked the car up about 2 feet at the toe bar so it was sitting forward. I opened the little bleeder valve a little and switched on ignition. There was a world of diesel. Id assume that would rule out the uplift pump?

On the computer today it showed up that it was losing pressure... there was also a small fault with the heater plugs... there was no errors with the engine fuel pump.

On here a while ago i was saying about a leak coming from the engine somewhere... The diesel is just sitting on top of the engine but i cant find the leak anywhere, anyone else think this could be the problem?

is there any real common places for leakages anywhere on the system? i dont really want to mess about with this Hdi injection too much but if theres any common faults that anyone in here knows about then it would be appreciated

the leak on top of the engine could be from the leak of pipes the little black pipe that goes from injector to injector

(the error code for the glow plugs in normal and incorrect, it can be ignored. most HDI's have it, inc my old one)

I think you need to get it on a high end diag machine and see what the fuel pressure is on the rail. Its sound like the low pressure pump is working, What was the fault code for "computer today it showed up that it was losing pressure" was it low fuel rail pressure?

That would sound more like a dead high pressure pump to me (sorry).

I would have thought if it was a leak, you would know about it if it was bad enough to stop the car running.