Puffernutter Posted October 6, 2012 Share Posted October 6, 2012 110 200Tdi Not brakes for once! I have recently changed my injection pump and for some reason best known to itself, even with the key out of the ignition, the engine won't stop! It's not dieseling, it ticks over quite happily, so is it simply my stop solenoid? I haven't checked the wiring, but I can see no reason why I'm getting a false feed onto the stop solenoid! So do these mechanically stick? Cheers Peter Quote Link to comment Share on other sites More sharing options...
vulcan bomber Posted October 6, 2012 Share Posted October 6, 2012 Most likely the stop solenoids stuck.. Pull the wire off when it runs on, see if it carries on.. Failing that, new stop solenoid, pig to change access wise but a simple job other than that. Quote Link to comment Share on other sites More sharing options...
Jimmy Two-Jacks Posted October 6, 2012 Share Posted October 6, 2012 I had this problem...scared the sugar out of me.It was a sticky stop solenoid. Quote Link to comment Share on other sites More sharing options...
Jode Posted October 15, 2012 Share Posted October 15, 2012 Likely to be the solenoid - otherwise you're tubo may be knackered and the engine's sucking the sump dry via the turbo oil feed. Quote Link to comment Share on other sites More sharing options...
western Posted October 15, 2012 Share Posted October 15, 2012 what happens if you disconnect the stop solenoid wire, if it keeps running the solly plunger is probably being held open by something Quote Link to comment Share on other sites More sharing options...
Ally V8 Posted October 15, 2012 Share Posted October 15, 2012 If the stop solenoid does not stop the engine after the wire is pulled off - its usually a sign that the pump is starting to fail.Swarf gets attracted to the solenoid because it is an electromagnet.Clean the swarf out and it will work again - until more swarf makes its way to it.Was the pump secondhand ? Quote Link to comment Share on other sites More sharing options...
Ibex94 Posted October 15, 2012 Share Posted October 15, 2012 I had this happen to my 200Tdi, Solenoid was stuck, easy fix from memory, and Its run for a significant period since replacement. Rob Quote Link to comment Share on other sites More sharing options...
mark-d Posted October 16, 2012 Share Posted October 16, 2012 If the stop solenoid does not stop the engine after the wire is pulled off - its usually a sign that the pump is starting to fail.Swarf gets attracted to the solenoid because it is an electromagnet.Clean the swarf out and it will work again - until more swarf makes its way to it.Was the pump secondhand ? +1 Quote Link to comment Share on other sites More sharing options...
western Posted October 16, 2012 Share Posted October 16, 2012 +1 +2, one day it just wouldn't start, we were stuck at work, big yellow taxi home & a FIP rebuild Quote Link to comment Share on other sites More sharing options...
Chris Davies Posted October 17, 2012 Share Posted October 17, 2012 I had the same problem on my 200tdi 90, try taking the stop solenoid off, remove the small plunger and stretching the small spring a little. This helped on mine where the fault seemed to be intermittent. Stretching the spring helped to push the plunger. Trick for removing solenoid. Cut a 24mm spanner in half, this makes it possible swing it. Then trim a little off the business end so that it is free to turn. I now keep such a spanner in my toolbox and its a 2 minute job rather than half a day! Quote Link to comment Share on other sites More sharing options...
Blackfiesta123 Posted October 17, 2012 Share Posted October 17, 2012 Mine want start flat battery, so think yourelf lucky lol. Quote Link to comment Share on other sites More sharing options...
bluehaze Posted October 17, 2012 Share Posted October 17, 2012 I had the same issue a while ago, turned out to be a knackered ignition barrel. Quote Link to comment Share on other sites More sharing options...
Puffernutter Posted November 18, 2012 Author Share Posted November 18, 2012 Here's an update. Sorry it's taken a while but I've been in India and Thailand. This all started because my original injector pump was leaking and I replaced it with a secondhand injector pump. When I first installed it, the engine wouldn't start ad I suspected the stop solenoid (turned out to be a timing problem). It's not an electrical problem, you can remove the wire from the stop solenoid and it keeps on going! Yesterday I finally got around to modifying a spanner and removed the solenoid and changed it for another. No difference, still won't stop. Left the stop plunger out and ran the engine briefly to clear out any much in that area. I then teased the spring out slightly and it did stop, a very slight hesitation after turning off, but it stopped. Hooray! This morning, it wouldn't start. Leaping to the conclusion that I'd put too much pressure on and on a cold morning it wouldn't lift, I swapped the springs over. Still wouldn't start. Cut a long story short - not enough diesel!!! So with more diesel it started! So, swapped them back again (to the slightly longer spring), won't stop. Took a trip to Cheltenham today with my twin axle trailer and collected a Triumph Stag (my second, I don't learn!) hoping a good trip would possibly warm a few things up and sort out the problems. Nope, still wont stop. Any ideas? I'm running out of them - I can't have two dodgy stop solenoids and on that basis I don't want to buy a third as I strongly suspect it wont work either! Cheers Peter Quote Link to comment Share on other sites More sharing options...
steve200TDi Posted November 19, 2012 Share Posted November 19, 2012 I guess you've checked you're getting voltage at the end of the stop solenoid wire? Other than that, I'm not sure. Steve Quote Link to comment Share on other sites More sharing options...
Puffernutter Posted November 19, 2012 Author Share Posted November 19, 2012 If it wouldn't start I would agree with you, but as it won't stop that's not an issue. I've even removed the connection with the engine running and it has no effect. Cheers Desperate of Trowbridge Quote Link to comment Share on other sites More sharing options...
western Posted November 19, 2012 Share Posted November 19, 2012 any slithers of swarf holding the plunger up ? these will prevent the plunger fully seating, as it won't stop with feed wire disconnected, it can only be the stop solenoid jamming, there is nothing else to keep it open Quote Link to comment Share on other sites More sharing options...
Puffernutter Posted July 3, 2013 Author Share Posted July 3, 2013 An update. Brand new solenoid stop valve. Still wont bl@@dy stop on the key! If it is cold, revving the engine will make it stop with the ignition off, so it must be just a trickle getting through. The pump is relatively inaccessible and I really don't want to remove it (but I may have to!) Can anyone describe what the stop valve plunger goes in to? I assume it's a chamber that stops the flow of fuel? Could there be a burr or a small piece of debris stopping the plunger seating properly? If I poke around down there and if it is debris, what is the risk of dislodging it into the injector pump and screwing that up totally? Getting desperate here guys and gals! Help! Cheers Peter Non-stopping of Trowbridge! Quote Link to comment Share on other sites More sharing options...
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