Hi Erroll,
Well if you have tried a different primer pump & filter housing & the problem was still the same I think you have to rule that out....although you should never assume or overlook the obvious with a problem like this.
Its also wise to only ever change 1 thing at a time so if the problem stops you know what was causing it.
Sorry....I think I cause a little confusion by calling the injection pump the fuel pump....I meant to say injection pump.
This injection pump has the stop solenoid on it. I don't think you will be able to gain access to the solenoid as I believe the manufacture fits a very strong steel shroud around it....this is part of the anti-theft immobilisation system....I think it's impossible to remove the shroud without damaging it.
I don't believe the pump itself is coded to the car but the solenoid will not get its power feed unless the correct chipped key, or if your car has a keypad immobiliser, the correct code is entered…this is why the strong steel shroud is fitted around it, to stop anyone simply introducing a new 12 volt feed to the solenoid!
I suppose your problem could be the injection pump but before you go changing it you really do need to have checked every other possibility.
Your next step is to remove the manifold & do the leak off pipes to see if that helps then you can rule that one out.
The cold will tend to make it worse....diesels don’t like the cold when it comes to starting....& if you have an air leak you will have to turn the engine for a while just to get the diesel to the injectors before it will attempt to start.
I have known leaks on diesel systems so small that no diesel was leaking however it was enough to let air in & cause poor starting …..I can recall one incident where at his wits end after replacing just about everything on the pre heating side & the injection side the guy bought a brand new injection pump for his Vauxhall Vectra… (£700 rings a bell) which still didn’t cure the problem….the problem was eventually found to be an air leak in the fuel pipe supplying the pump….the pipe had been rubbing on the bodywork & scuffed through a little….the air was getting in but no diesel was getting out as the pipe was nice & dry…the pipe was replaced & the poor starting disappeared!
Get them leak off pipes changed as soon as you have a chance….& let me know the result.
Regards.
PS.
Here’s a couple of forums that may be of interest to you….I frequent them from time to time ;-)
http://www.frenchcarforum.co.uk/forum/
A good forum with some very knowledgeable members.
The forum is sometimes down & a little slow due to recent changes but just keep trying & you will get on eventually.
http://www.gsfcarparts.com/forum/default.asp
Sometimes not a busy forum so you may not get an answer to any questions quickly.
https://secure.gsfcarparts.com/shop/
A good place for parts for Citroen's at decent prices….I have always had very good service from my local branch.
Tel
February 2008