Kanny Posted January 29, 2017 Share Posted January 29, 2017 I seem to be having a starting problem on my 55 plate 2.5xt ....it's starts fine when its cold or when its at operating temperature but when its just warm its struggling to start it fires but dies straight of ....any ideas anyone? Thanks Quote Link to comment Share on other sites More sharing options...
Kanny Posted January 29, 2017 Author Share Posted January 29, 2017 Car won't start at all now it's just turning over with no firing the Battery looks old but seem to be plenty in it ? ... I've got home start so i will call them out in the morning the first thing they will do is try a jump so i will take it from there ...any suggestions would be much appreciated? it's done it a couple of times before when the engine was just warm but after 15 mins started fine but not today. Thanks Quote Link to comment Share on other sites More sharing options...
stants Posted January 29, 2017 Share Posted January 29, 2017 Any check engine codes stored or flashed up ? Could be anything from not getting any fuel to bad coil to something simple like a relay gone, I'd you put the rear seats down climb into the boot get someone else to turn the key to the 2nd position, can you hear the fuel pump prime ? Sent from my SM-G930F using Tapatalk Quote Link to comment Share on other sites More sharing options...
Kanny Posted January 29, 2017 Author Share Posted January 29, 2017 no codes ... it was fine this morning i was out for about a hour and stopped and started a few times no problem then came home I went to jump in it a couple of hours later and its not having it ...it was simlar circumstances when it did it before but was ok after 15 mins :hmm: I will see if it wants to play later or in the morning but either way I need to get to the bottom of it for reliability ... thanks I will have a listen tomorrow if I get no joy Quote Link to comment Share on other sites More sharing options...
stants Posted January 29, 2017 Share Posted January 29, 2017 When was it last serviced? The plugs can be a bit of a pain and some people neglect them, maybe previous owner didn't bother ? Could also be crank sensor on way out, Sent from my SM-G930F using Tapatalk Quote Link to comment Share on other sites More sharing options...
Kanny Posted January 29, 2017 Author Share Posted January 29, 2017 It had a minor service 3 weeks ago ...I've not had it long I will have a look through the history to see when the plugs were last done ...thanks Quote Link to comment Share on other sites More sharing options...
Kanny Posted January 29, 2017 Author Share Posted January 29, 2017 1 hour ago, stants said: When was it last serviced? The plugs can be a bit of a pain and some people neglect them, maybe previous owner didn't bother ? Could also be crank sensor on way out, Sent from my SM-G930F using Tapatalk I've just had a look at the history and it last had plugs NGK titanium plugs 22k miles ago Quote Link to comment Share on other sites More sharing options...
Mdon Posted January 29, 2017 Share Posted January 29, 2017 Has stants has said. It can only be one of two things if it's not even firing. Must be either a power/spark problem or fuel. I'd try the jump start first then. Always start cheap and work up. Quote Link to comment Share on other sites More sharing options...
Kanny Posted January 29, 2017 Author Share Posted January 29, 2017 Well I've just been out to it and its started first turn ....weird..... stants your right I could hear the fuel pump priming ...thanks Quote Link to comment Share on other sites More sharing options...
Kanny Posted January 30, 2017 Author Share Posted January 30, 2017 Car started fine this morning I drove to work no problem.. Just been out to try it at break 2 hours later and it's not starting again grrrrrrrr! Quote Link to comment Share on other sites More sharing options...
Kanny Posted January 30, 2017 Author Share Posted January 30, 2017 I've just had the car to ATS for a Battery and alternator test and there both in good condition? Quote Link to comment Share on other sites More sharing options...
stants Posted January 30, 2017 Share Posted January 30, 2017 Well that rules at least two thing out, plus fuel pumps priming, how are the ht leads looking ? Does your car have the factor fit alarm ? Sent from my SM-G930F using Tapatalk Quote Link to comment Share on other sites More sharing options...
Kanny Posted January 30, 2017 Author Share Posted January 30, 2017 15 minutes ago, stants said: Well that rules at least two thing out, plus fuel pumps priming, how are the ht leads looking ? Does your car have the factor fit alarm ? Sent from my SM-G930F using Tapatalk I will try have a look later after work.. Yes it is a factory fit alarm.. I think the key to this mystery is the fact it only does this when the car is in a just warm state.. I'm thinking a choke issue because of that fact... But I'm a cabinet maker not a mechanic lol Quote Link to comment Share on other sites More sharing options...
Kanny Posted January 30, 2017 Author Share Posted January 30, 2017 So it seems after scanning the net that this is quite a common problem however finding a cure seems to be more difficult.. . Now I'm getting crank or cam sensor thrown up alot in my investigations but I'm not getting any error codes to confirm this..can these go wrong and not give a error message? And which out of the 2 is it more likely to be as I don't want to be replacing stuff if it doesn't need it... Both look fairly easy to change out from the how to videos I've seen but no doubt mine will be totally different and a right pain.. Thats normally how it seems to go lol Quote Link to comment Share on other sites More sharing options...
Scoobyghost Posted January 30, 2017 Share Posted January 30, 2017 Almost unrelated but I recently had a maf sensor fail. I had a cel light 2-3 months previous but it never came back so didn't think much of it. Ruined my fueling and on replacing it, it helped but then needed a small tweak to get the original power back. Morale of the story I guess is sensors can partially fail without giving you a warning light. 2 Quote Link to comment Share on other sites More sharing options...
stants Posted January 30, 2017 Share Posted January 30, 2017 Sensors do fail without throwing codes as ghost says, The 02 sensor could flash up and dissappear in a second in 1000 miles and the only way you'd know is if you ran a diagnostic, I'd hazard a guess to the crank sensor failing more than a cam sensor if it's turning over but not firing, where abouts are you ? Maybe someone local willing to 'lend' you a sensor so you can swap it and see if the fault goes, That way you can narrow down your fault without spending unnecessary money and time, Maybe worth having a look at the sensor in situ may have a damaged or loose wire, it's at the front of the engine, shine a light in between the pullies next to the alternator Sent from my SM-G930F using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
Kanny Posted January 30, 2017 Author Share Posted January 30, 2017 Cheers I will have a look tomorrow I've already found the crank sensor its the easiest out the two and the cheepest. ..the cam sensor on mine is buried away I've got to move a few things to get access I can't see it but I know its there .. so i will start with the crank and see how it goes ...thanks all for your input .... one last thing where do you lot recommend for such parts I've come across a couple of places on my travels down this road but just wondering who y'all recommend ? Quote Link to comment Share on other sites More sharing options...
Scoobyghost Posted January 30, 2017 Share Posted January 30, 2017 Importcarparts.co.uk 2 Quote Link to comment Share on other sites More sharing options...
Kanny Posted January 31, 2017 Author Share Posted January 31, 2017 Just a thought tell me what you think.. Last week I decided to treat the car to a tank full of V power...this problem started when I got down to about quarter of a tank of the v power.... Could the v power be the problem? could it's cleaning effect have dislodged some dirt causing a blockage somewhere.... The car has been totally fine today no problem whatsoever I've been starting it at different intervals and it's started first turn everytime.. Quote Link to comment Share on other sites More sharing options...
K333vnt Posted January 31, 2017 Share Posted January 31, 2017 Prob not same as yours but Mine had done something like this a little while ago but it only has this issue with my spare key not main key like the spare lost the code or something so always use main key 🔑 1 Quote Link to comment Share on other sites More sharing options...
stants Posted January 31, 2017 Share Posted January 31, 2017 With regards to v power, they should always be run on premium fuel, reduces the likelihood of knock, it takes a while for the ecu to re learn the fuel so maybe it threw a wobbler, I'd do a full reset anyway run a couple of tanks of v power though and see what's happening, I'd log your mpg too I will probably increase slightly Sent from my SM-G930F using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
Kanny Posted January 31, 2017 Author Share Posted January 31, 2017 3 hours ago, stants said: With regards to v power, they should always be run on premium fuel, reduces the likelihood of knock, it takes a while for the ecu to re learn the fuel so maybe it threw a wobbler, I'd do a full reset anyway run a couple of tanks of v power though and see what's happening, I'd log your mpg too I will probably increase slightly Sent from my SM-G930F using Tapatalk I think your right about the ecu throwing a wobbler ...I left work put another tank of v power in and had half a hour of fun... the car felt more responsive... i then came home put the car on the drive and let it cool. I've just been out to try it and it started straight up ....hopefully fingers crossed its sorted now. ...I've not bothered resetting the ecu as all seems good now so I'm happy ...if it ain't broke and all that ....thanks 1 Quote Link to comment Share on other sites More sharing options...
Mr B Posted February 1, 2017 Share Posted February 1, 2017 Exact details of crank but no start will help diagnosis, example, if cranking and absolute no firing it probably sensor issue . checking spark on cop pack would be good . can't see it being something that going fix itself or type of fuel in use . If you can here fuel pump priming when key turned on then it should run few seconds or splutter on that line pressure even if pump didn't run when cranking so if no firing cop not getting signals as ecu probably getting poor data on a sensor. very common for specific temp condition trigger sensor component fault . You can review sensors using service manual data but better diagnosis needs oscilloscope and possibly fault be more persistent which could even give a fault code to help point probable area start checks . 1 Quote Link to comment Share on other sites More sharing options...
Kanny Posted February 2, 2017 Author Share Posted February 2, 2017 Thanks for the advice Mr B .... all is good at the moment I've been checking it all thorough the temperature range and its starting fine every time "if" it does again then i will investigate further but I'm reluctant to throw money at it at this point in what could be a ghost Chase I've done it before with other cars...I will keep a close eye on things and see how it goes. Quote Link to comment Share on other sites More sharing options...
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