Daz1986 Posted April 9, 2016 Report Share Posted April 9, 2016 so guys as above!! i have done a fair few long trips in my disco 1 now and thought an oil change would be a wise idea!!! i have done many on her before. this time around i am now getting the oil light come on while stopping at lights and so on! it goes off soon as i set off and docent normally come back on!!!!! ANY IDEAS WELCOME Quote Link to comment Share on other sites More sharing options...
ditchman Posted April 9, 2016 Report Share Posted April 9, 2016 do you change your filter when you do the oil change a new pressure switch is needed ? Quote Link to comment Share on other sites More sharing options...
guzzicat Posted April 9, 2016 Report Share Posted April 9, 2016 Can you remove switch & fit a temporary gauge to check oil pressure ? Quote Link to comment Share on other sites More sharing options...
rodp Posted April 9, 2016 Report Share Posted April 9, 2016 How many miles has it done ? What oil did you put in ? Did you change the filter? Quote Link to comment Share on other sites More sharing options...
hodge911 Posted April 9, 2016 Report Share Posted April 9, 2016 faulty / partially blocked oil pressure switch would be my first guess and as they only cost a few £ and are easy to replace that would be first step I.M.O Quote Link to comment Share on other sites More sharing options...
Daz1986 Posted April 9, 2016 Author Report Share Posted April 9, 2016 I changed the filter. Sure it was 15/40 and it's literally on long journeys!! After about 1:30 driving is comes on at tick over then isn't seen again till the next long trip Quote Link to comment Share on other sites More sharing options...
rodp Posted April 9, 2016 Report Share Posted April 9, 2016 I would change the switch as a matter of course. Is the engine high mileage? Sounds like(assuming switch ok) it's when the oil reaches it's thinnest as it takes quite a while for it to warm through. If it's just general high mileage and a worn engine you really only have three options. (A) rebuild engine, (B) turn tickover up slightly , © use thicker oil in summer. (A) is obviously the proper way but we all know that's not going to be done until the engine gasps and wheezes it's last breath, everyone (most) would take the same course and make it last as long as possible. Me personally, being a lazy tight wad would go straight to (B) and © Unless of course you can persuade Ditchy to rebuild it for you at mates rates :lol: Quote Link to comment Share on other sites More sharing options...
Daz1986 Posted April 9, 2016 Author Report Share Posted April 9, 2016 (edited) She only comes on for a second at lights and so on but soon and I up the revs it's off!! Hopefully she gets me by till a new truck gets purchased lol Edited April 9, 2016 by Daz1986 Quote Link to comment Share on other sites More sharing options...
rodp Posted April 9, 2016 Report Share Posted April 9, 2016 I changed the filter. Sure it was 15/40 and it's literally on long journeys!! After about 1:30 driving is comes on at tick over then isn't seen again till the next long trip It will be because it takes that long for the oil to get hot through, and at it's thinnest. Thinner oil = lower pressure especially on an engine with wear. There's lots of vehicles out there with that problem, just keep the oil light off by raising tick over slightly or using thicker oil. A bodge in a way I know, but you could get years more life out of it. How many miles has the engine done ? Quote Link to comment Share on other sites More sharing options...
bluesj Posted April 9, 2016 Report Share Posted April 9, 2016 If it only started after you changed the oil and filter I would make sure the oil level is ok and that the wire on the sender hasn't come loose if that is ok change the oil and filter again using a good quality filter Quote Link to comment Share on other sites More sharing options...
Daz1986 Posted April 9, 2016 Author Report Share Posted April 9, 2016 Engine is on about 200k so she has had a good innings. She will be fine no doubt. Quote Link to comment Share on other sites More sharing options...
rodp Posted April 9, 2016 Report Share Posted April 9, 2016 Not major mileage for a 200 or 300 though. Did you put the original oil in or was it in when you bought the vehicle? I wouldn't worry about it to be honest. Check the oil pressure switch and change it soon as just in case, make sure the filter is a good brand (not Britpart whatever you do) and if still no change then work around it (tick over, grade of oil) then just carry on driving. I had a 300 that had a leaky filter with two "motor factors" filters, bought a Fram and problem solved. Britpart I never use, they specialise in price over quality and that's not good. Quote Link to comment Share on other sites More sharing options...
Daz1986 Posted April 9, 2016 Author Report Share Posted April 9, 2016 I have had it a wile now and change the oil every few months. Lest change was fine but this one has triggered that light!!! It only came on a couple of times and nothing since!! Where is the sencor for the or the switch?? Quote Link to comment Share on other sites More sharing options...
rodp Posted April 9, 2016 Report Share Posted April 9, 2016 on the filter housing https://www.google.co.uk/search?q=300tdi+oil+warning+switch&tbm=isch&imgil=RWrdVvNdgR_rfM%253A%253BTNgRcgwRxOWUXM%253Bhttp%25253A%25252F%25252Fforums.lr4x4.com%25252Findex.php%25253Fshowtopic%2525253D68380&source=iu&pf=m&fir=RWrdVvNdgR_rfM%253A%252CTNgRcgwRxOWUXM%252C_&usg=__0jZUsOwAR5umeWaTSYgH-lStMkE%3D&biw=1536&bih=754&ved=0ahUKEwjyk5j-kILMAhXMvRoKHSxlCLAQyjcIRQ&ei=0EIJV_LrLsz7aqzKoYAL#imgrc=XDm7gBPP9CkBXM%3A Quote Link to comment Share on other sites More sharing options...
Daz1986 Posted April 9, 2016 Author Report Share Posted April 9, 2016 Ideal mate. Will get that done and hopefully get her sorted Quote Link to comment Share on other sites More sharing options...
landy george Posted April 9, 2016 Report Share Posted April 9, 2016 (edited) I had a 200tdi & the light come on, i only put 30k on it in the time i had it. New pressure switch, thicker oil, bottom end rebuild, turned out that a bush at one end of the block moved in the block & blocks the oil way. Common thing on 200's by all accounts but then it did only cost me £15 of ebay Edited April 10, 2016 by landy george Quote Link to comment Share on other sites More sharing options...
rodp Posted April 10, 2016 Report Share Posted April 10, 2016 I had a 200tdi & the light come on, i only put 30k on it in the time i had it. New pressure switch, thicker oil, bottom end rebuild, turned out that a bush at one end of the block moved in the block & blocks the oil way. Common thing on 200's by all accounts but then it did only cost me £15 of ebay Sure this wasn't a cam bush moving? It has been known to happen,( particularly if the engine has got quite hot) but not common. Then again, it happens on other makes of engine as well so not a particular trait of the 200 / 300. Bush moves in casting and effectively leaves a big hole for the oil to run out, thereby killing oil pressure. It's usually fatal I believe Quote Link to comment Share on other sites More sharing options...
landy george Posted April 10, 2016 Report Share Posted April 10, 2016 Sure this wasn't a cam bush moving? It has been known to happen,( particularly if the engine has got quite hot) but not common. Then again, it happens on other makes of engine as well so not a particular trait of the 200 / 300. Bush moves in casting and effectively leaves a big hole for the oil to run out, thereby killing oil pressure. It's usually fatal I believe That sounds about right. Did try the other options before pulling it out but was easier just to put a different engine in. Quote Link to comment Share on other sites More sharing options...
243ack Posted April 10, 2016 Report Share Posted April 10, 2016 Take the bulb out! Quote Link to comment Share on other sites More sharing options...
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