Peugeot 405 SRDT wont start!

Peugeot 405 SRDT wont start!

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lamlam

Original Poster:

24 posts

154 months

Monday 7th November 2011
quotequote all
Hi guys,
Any help on this subject would be appreciated. I recently bought a 94 peugeot 405 SRDT and it seemed to run and start fine when i bought it, although it was sluggish. Soon after i got it home, it wouldnt start. I have done many things to try and rectify the problem but to little avail. It turned out i had a leak in a fuel line and wasnt getting much fuel into the injector pump. I replaced a hose and now i have full pressure to the injector pump with no air leak. Still wouldnt start.

I then looked to glow plugs. I took them all out and tested them by putting a little oil on the end of them and connecting them to the battery to see if they would burn the oil. They all burned the oil within 3 seconds so i know they work. However, the glow plug light on the dash doesnt come on when i turn the key. I have seen it briefly but only once. I have tested to see if i was getting power to the plugs and im not getting power to them. I replaced the relay with a relay i know works and the light came on only once but never again. I even changed the wire from the relay to the glow plugs but it still didnt get power to them. Where do i go from here? I know i need to get power to the glow plugs but im not sure how at this stage. I thought there was only one relay that had anything to do with it. Help!!!

lamlam

deviant

4,316 posts

215 months

Monday 7th November 2011
quotequote all
You would probably need to go to a specialist but the first thing that comes to mind for me is an airlock in the fuel system...dont oil burners need some sort of priming to remove all the air?

lamlam

Original Poster:

24 posts

154 months

Monday 7th November 2011
quotequote all
Yeah they do. Ive been talking to people about this for a while now and have been working through each suggestion. Im satisfied that there is none or very little air in the fuel lines as i've primed it several times and bleed the fuel lines several times.

Ive been tinkering with a multimeter today to see if my glow plugs were getting power and they arent. I then went to see if the glow plug relay was getting power and it is, its just not telling the plugs to turn on when i turn the ignition key. I replaced that glow plug relay with 2 others that i know work but neither of them would put power to the plugs either so it has to be the wire from the ignition module to the glow plug relay. Im not sure how to check this one or even which wire it is. Is it possible to have a loose connection in the ignition module? The connection looks fine at the other end and the wires rarely go bad in between them.... thoughts?