sticks Posted September 4, 2010 Share Posted September 4, 2010 Hi,can anybody help,i have a talbot express 2500 td 1993. While we were on holiday i parked up, went to switch off the engine and nothing happened. The engine continued to run. The alternator light remained lit. I did notice that when i depressed my brake pedal the alternator light dimmed. The only way to stop the engine in the end was to stall it! Can any one help to diagnose the problem, Many thanks. Link to comment Share on other sites More sharing options...
w1ntersun Posted September 4, 2010 Share Posted September 4, 2010 When you turn the ignition off a soleniod stops the supply of deisel to the engine. This may be sticking. Richard Link to comment Share on other sites More sharing options...
enodreven Posted September 4, 2010 Share Posted September 4, 2010 Hi, You have an electric stop valve fitted to the engine, probably sited very close to the diesel injector pump and from your description I would suspect you either have a wire that has come lose or an earth fault, have a good look around the engine compartment to see if there are any lose connections. Link to comment Share on other sites More sharing options...
Daves Posted September 4, 2010 Share Posted September 4, 2010 Hi. With that age Pug motor its sure to be the electrical solenoid cut-off for the diesel thats failed. My old Pug 309 had the same problem. There should be a lever on the fuel pump which you can turn to stop the engine. A new solenoid is called for (I think mine was Lucas and not too expensive as I recall) from your local diesel injection specialist. Otherwise, stall the engine or press the lever until you can bring yourself round to replacing the solenoid. Happy oil-burning! Link to comment Share on other sites More sharing options...
sticks Posted September 5, 2010 Author Share Posted September 5, 2010 hi,not to sure where the solonoid is sited and cant find any switch/lever to cut the engine.is the solonoid fastened to the inner wing above the battery or is this something else.thanks pete Link to comment Share on other sites More sharing options...
w1ntersun Posted September 5, 2010 Share Posted September 5, 2010 The solenoid will be in the fuel line to the injector pump. Start at the pump and work your way back. It will be about 2-3 inches high with 2 wires coming from it. Link to comment Share on other sites More sharing options...
sticks Posted September 5, 2010 Author Share Posted September 5, 2010 lo,me again,still no joy, cant find the solenoid.The fuel line goes into the pump and back to the filter no solenoid in line,however next to the fuel pipe where it enters the pump their is a cylinder type thing with one wire attached to the top,could this be the solenoid.sorry to harp on Link to comment Share on other sites More sharing options...
spospe Posted September 5, 2010 Share Posted September 5, 2010 sticks I am not familiar with your engine, but what you are describing sounds very similar to the fuel cut-off solenoid fitted to a 2.5 DI Transit engine. My best guess is that this is the cut-off and that it is not working (possibly either corrosion, or a broken spring preventing closure). Link to comment Share on other sites More sharing options...
ian81 Posted September 5, 2010 Share Posted September 5, 2010 On our old Peugeot J5 based van had a related problem caused by an ignition switch. The cut off was part of the fuel filter so suggest you measure voltage and see if 12v is still present when you turn off. Link to comment Share on other sites More sharing options...
creakyknee Posted September 6, 2010 Share Posted September 6, 2010 Hi Peter, Had same problem with my Merc. It needed a new vacum pump. £340 for new pump. Link to comment Share on other sites More sharing options...
Daves Posted September 6, 2010 Share Posted September 6, 2010 Hi Sticks. Not too familiar with your (now fairly ancient) 2.5 Pug motor but the "cylindrical thing with the wire coming out" sounds like the solenoid. The wire operates an electro-magnetic switch to cut off the fuel. I would guess a replacement is widely available (I got mine from d.i.e.s.c.o of Ipswich when I lived there). Easy enough to fit but bleeding the air from the fuel system can be challenging. Make sure that the battery is fully charged then keep the throttle floored whilst cranking the engine. Lots of spluttering will be accompanied by loads of white smoke but eventually the motor will run cleanly! Happy oil-burning - DaveS Link to comment Share on other sites More sharing options...
sticks Posted September 6, 2010 Author Share Posted September 6, 2010 Hi Dave, Thanks for your advice, will have a look in the morning after it's stopped blowing a hooly. It's taken me from Macclesfield round the Highlands and Islands of Scotland for the last six years and never burn't a drop of oil, or let me down, give me an ancient old pug any day. (lol) Link to comment Share on other sites More sharing options...
Daves Posted September 6, 2010 Share Posted September 6, 2010 Hi Sticks. "Oil-burning" is a term of endearment for diesel motoring in general because they burn diesel fuel (Gas-oil of old or possibly chip-fat as of late!). It doesn't imply they burn engine oil - because they rarely do. Glad to be of help. In 170,000mls of motoring in my old Pug 309 Turbo-Diesel (now a very rare beast) the engine-stop solenoid was the only thing that failed besides the occasional glow-plug. Yes, the older Pugs were reliable and easy to fix if they ever went wrong - hope my current Pug 2.8HDi is an equal. Dave S Link to comment Share on other sites More sharing options...
sticks Posted September 6, 2010 Author Share Posted September 6, 2010 Hi Dave,thanks for explaining that,i do get a wee bit techy about the old lad.Hes has just clocked 130,000 so im pretty proud of the old chugger,and hes been lugging a talisman on the back for 17 years. Link to comment Share on other sites More sharing options...
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