Pug 306td

Associate
Joined
2 Jul 2009
Posts
85
Location
crewe
Anyone any good with diesels. The old pug ran ok suddenly it starts po po with white smoke get above 2000 rev and its all ok. Changed injectors but when its po poing if you pump the primer pump its ok as long as you keep pumping. It has no power below 2000 rev then its great goes like a rocket. I live in Crewe and cant find anyone who does diesels it has a lucas pump and its 121 bhp measured last month.
 
White smoke on a petrol engine usually means its burning water (unsure on diesels). Have you checked the water levels to see if its going down? Does it overheat?

Im assuming its modified. TDs are 90bhp standard i think (unless its a HDI?). You tried backing of the fueling/boost to see if it still happens?

Have a look at this http://www.difflock.com/diesel/troubleshooting.shtml
 
"po po"? :confused:

White smoke is most likely water, although if its greyish it could be running rich. I'm assuming its not the HDI if it has a primer pump, presumably screw modded?

This is what happens when you mess with diesels - as Batf1nk said, try undoing whatever you've done as a first port of call.

Is it struggling to get to 2000rpm, then coming onto boost and pulling fine? Or is it just the smoke? If its struggling, air filter or fuel filter might want looking at
 
White is usually coolant being burnt.

Is the water level dropping? Are the radiator hoses going rock solid (not just hard, but solid)

ps, you're obviously lying as XUD engines never break down.
 
Water ok never uses any now it wont start no fuel coming out of the pump changed the hand pump blead it. It seems to be the stop solenoid but its got a disabled key code so the pump is covered in a shield so you cant get at it. If we could get it to start it may be ok as the hand pump bulb seemed faulty letting fuel back.

It did this at the garage yesterday but then when i came back an hour later it was ok so dont know if he did something or its cleared on its own. It died when we opened the filer cap. Is there anything else that sets off this solenoid
 
Water ok never uses any now it wont start no fuel coming out of the pump changed the hand pump blead it. It seems to be the stop solenoid but its got a disabled key code so the pump is covered in a shield so you cant get at it. If we could get it to start it may be ok as the hand pump bulb seemed faulty letting fuel back.

It did this at the garage yesterday but then when i came back an hour later it was ok so dont know if he did something or its cleared on its own. It died when we opened the filer cap. Is there anything else that sets off this solenoid

Sureley if the priming bulb was letting fuel back this would only cause issues starting it , once the Injection Pump (IP) has been primed it should be fine ,if air was getting in this would tend to limit top end revs not bottom.

I thought stop solenoids either stick open or closed? so it would either not stop or not start....

What IP do you have Lucas/Bosch? and version if you know?
What year is the car?
Have you blanked off your EGR?
Have you decatted it?
Have you checked the vacuum hose from the inlet manifold to the IP?

p.s. these are in no order.
 
Last edited:
I've had a recent similar problems with my Scorpio.
Low power at low revs, woundn't start when the engine was hot, but ok when cold.

Turned out to be a faulty injectorpump, not a cheap job in my case.
 
I have had a peuegot 406 2.1 XUD I had issues with the Injection Pump turned out that it didn't like the vegetable oil I was running on it, Replaced this with a differenet pump a bosch of a 405 much better pump and allot more tolerant.

Some of the pumps can be fragile esp the lucas ones some more than others.

edit only just read your orig post that you have a lucas :(.

Not much idea with the lucas pump I try to avoid them.

It may well be the off boost fueling that you are having an issue with although i have no idea how do do this on a lucas, or the egr valve sticking?
 
White smoke, if it's not using any water will be unburnt diesel.
Either a ****** pump or injector at a guess
 
We sorted the stop solenoid the anti theft had come on. It now starts first time but actual blows out white smoke rings(very pretty A beep code?) seems to get better if you pump the bulb. Sometimes runs ok for a few mins. Still goes like a rocket above 2000 rev. Changed injectors new glow plugs changed primer bulb checked filter. As it sometimes runs ok it must be an intermittent problem. Is there a pump in the tank as low fuel pressure is one cause of the smoke I am thinking pumping the bulb helps that?
 
We sorted the stop solenoid the anti theft had come on. It now starts first time but actual blows out white smoke rings(very pretty A beep code?) seems to get better if you pump the bulb. Sometimes runs ok for a few mins. Still goes like a rocket above 2000 rev. Changed injectors new glow plugs changed primer bulb checked filter. As it sometimes runs ok it must be an intermittent problem. Is there a pump in the tank as low fuel pressure is one cause of the smoke I am thinking pumping the bulb helps that?

You say that you get smoke rings?
do these disappear when the engine warms up?
do they dissapear when the engine is revved?

If the smoke persists It may be unburn't fuel i.e. the pump is advanced too much not giving the fuel time to burn? might be casued by the cold advance not working if the smoke goes/reduces when hot.
Confused as too why pumping the primer would have any affect.
There is no in tank fuel pump that I am aware of, easy to check, lift the rear seats and pull out the fuel sender unit (need to undo the lock ring), check the in tank strainer while your at it.


The smoke would not be an issue of lack of fuel! this would just reduce the power, would check the cold advance is working, symptoms seemt o suggest that lack of power at lo revs and partially burn't fuel.

You are running this on dino right? Have had similar issues with alternative fuels.
 
Pumping the primer should have no affect as the mechanical injection system just cannot cope with air. Therefore I can't imagine the car would even run.

Anyway, whatever is going on by the sounds of it you've pretty much narrowed it down the the fuel pump yourself, so I'd say go and get your self a bosch pump along with a cam belt kit as well.

Ta

Alec
 
Check for air leaks around the fuel filter, the standard unit leaks like a bloody sieve. Have you got clear or solid fuel line from the filter to the pump?

P... go and get your self a bosch pump along with a cam belt kit as well.

Ta

Alec

Not forgetting to change the injectors and injector lines :p
 
Pumping the primer should have no affect as the mechanical injection system just cannot cope with air. Therefore I can't imagine the car would even run.

The XUDs are fairly solid engines , and will run on quite allot of air. Had mine running on mostly air 10-20% fuel by volume , suprised how it still ran , this was due to a blocked filter when using vegetable oil.

The fuel pumps rarely have problems if run on regular water free diesel.
Exception being newer pumps esp common rail injection systems.

1) You need to check the tank strainer.
2) Fit clear pipe to the input of the IP to check for air (worth a check :p)
3) Make sure all the injection lines are fully bled of air, any and the injector on that line will not open ,you want to see quite a bit of fuel coming out not just foamy diesel.
 
Check that the car isn't drawing air into the fuel system.

My 205 1.8 TD was sucking air in with the fuel and ran like a dog, very lumpy and then would suddenly go.

It ran like crap when it was sucking the air at idle and would throw white smoke at the back whilst sounding rather lumpy.

New section of CLEAR hose sorted the issue whilst being able to see if it was drawing air ;)
 
I thought we had solved it we took the petrol cap off put it back on and it ran ok for a few miles then started again. I will check the pipe above the tank tomorrow see if its blocked
 
Back
Top Bottom