 | Home > Td5 > Yet another won't start post |
 
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| JWL Member Since: 26 Oct 2011 Location: Hereford Posts: 3443   
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It's been a while since I've done any posting on here but my 2002 15P is not playing ball
I did a clutch change back in July in a camping field due to complete failure of the thrust bearing Whilst towing the caravan to our annual week away in Wales, the last 25miles were fun to the campsite with no clutch. When the gearbox was put back I renewed the last bit of wiring on the CPS sensor loom as it had become very brittle and would crank to start longer than it should, after the attention it was spot on, turn the key and it would fire up straight away. I was actually more pleased about that than being able to change gear when I wanted to. Long story short, over the past month it's been taking longer to fire and run when cranking until now where it won't run at all Swopped CPS sensor with a known good one Get a rev reading but it's all over the place and can go blank on the Nanocom Gives noisy fault on faults along with speed fault and sometimes the MIL light is on but not every time Bought and fitted a new wiring harness from CPS to the ECU No change New fuel pump Does drive better when it runs No oil at all in injector loom and red plug Dry as a bone New solenoid pack in starter motor plus a good look over It does start with a tow, runs absolutely spot on, will start on the key but only if you don't leave it turned off for too long, say an hour. It will try to fire but is very lumpy, won't pick up and the black smoke obliterates the street Batteries are fully charged, charger is a permanent feature as I try to solve this,. Looking for any more ideas from the collective gurus as I am stumped |
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24th Nov 2023 5:10pm |
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| JWL Member Since: 26 Oct 2011 Location: Hereford Posts: 3443
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The battery/batteries are plugged into a charger. The starter has a new solenoid kit put in and I gave it a good look over. It spins the engine over properly and fast enough but the readings of engine rpm from the Nanocom do not correspond to what you can hear.
I bought a new CPS sensor but cannot get that to register any rpm reading so suspect that I have been sold the wrong sensor as the two used ones give me a reading of sorts. |
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25th Nov 2023 8:29am |
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| Benny Member Since: 03 Nov 2016 Location: Plymoth Posts: 15  
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Could be the injector seals. They go over time. I had a refusing to start issue 1999 10p and reaserched. Read people had issues.
How may miles has it done? |
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25th Nov 2023 9:22am |
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| JWL Member Since: 26 Oct 2011 Location: Hereford Posts: 3443
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I'm going to pop a new set of seals and washers on as matter of course, I'm not hopeful but am looking at anything now as it runs spot on when started and no diesel smell in oil. But copper washers may be dropping oil into the cylinder hence all the black smoke when cranking on the starter so it will be done to at least rule that one out.
Mileage.......... Only 258k miles |
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25th Nov 2023 9:30am |
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| landy andy Member Since: 15 Feb 2009 Location: Ware, Herts Posts: 5424 
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As mentioned above. Sounds like you are listing the problems an iffy starter cause. With that problem they always start ok with a tow.
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25th Nov 2023 9:52am |
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| geobloke Member Since: 06 Nov 2012 Location: Nottinghamshire Posts: 4410
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As above. A noisy starter can cause all sorts of starting issues. I mistakingly bought a pattern part that was so noisy it was affecting the tiny CPS signal so the engine would turn and turn really struggle to fire. Every now and again I would get a CPS error but not always. Swapped to a new Denso. Problem solved.
But... I wouldn't count out a feeling issue. Check your fuel filter housing is not corroded for instance. |
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25th Nov 2023 10:26am |
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| JWL Member Since: 26 Oct 2011 Location: Hereford Posts: 3443
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At the mileage mine has achieved it is becoming a bit of a Triggers Broom, the filter housing was replaced last year plus with the erratic speed readings at cranking and no hassles when running it is all pointing to an electrical gremlin when cranking. But with the amount of black smoke and failure to run, tries to fire but won't run I will change injector washers and seals as it could be dumping excess fuel in the bore and effectively flooding
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25th Nov 2023 2:26pm |
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| JWL Member Since: 26 Oct 2011 Location: Hereford Posts: 3443
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Changed injector seals and washers, added earth's from the under driver seat earth poles straight to the battery and still no further forward. Plenty of black smoke, tries to fire but won't run so I am going to have to try a new starter even though I have done the solenoid pack, it turns the engine over well etc etc but I am still getting the noisy signal fault. Not every time but it happens.
When cranking and trying to fire it will falter in cranking speed and the MIL light will come on so it might be that the starter motor is beginning to fail in the windings and giving the noise picked up by the CPS |
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25th Nov 2023 5:08pm |
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| MadTom Member Since: 10 Sep 2013 Location: Olomouc Posts: 579  
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Once I was solving Discovery2 non starting, with nice running starer motor. Owner was able to jump start with pulling it with another car. This was real surprise, because it started inmediately. We replaced starer for some old spare one, and it started again. Starter was working nice, we have fully dismantled it, and found nothing visibly bad. With high current test we found differences between rotor windings. I think, some were parly bad, and it was producing some electrical noise. "Drobek" = The Small One - Discovery 2, "Blufínek" = The Blue Thing - Defender 130, and for me at least Ford Mondeo
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25th Nov 2023 9:00pm |
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| JWL Member Since: 26 Oct 2011 Location: Hereford Posts: 3443
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I'm at the point where it can be little else, I have done all the low cost "fixes" so it's Sods Law that more money has to be splashed out
So new starter it will have to be and after all the hassle it'll have to be a Denso of course  |
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25th Nov 2023 9:21pm |
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| NickMc Member Since: 01 Oct 2014 Location: Norn Iron Posts: 1572  
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Have you tried the crank sensor shim? NSJ000010
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25th Nov 2023 10:27pm |
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| MarkBrown Member Since: 03 Oct 2022 Location: Mid Wales Posts: 327 
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I had a similar problem on a Jeep - intermittent starting. The motor worked fine on the bench with the solenoid kicking out as it should, but the solenoid would only kick in sometimes on the car. A new starter and all was well again. |
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25th Nov 2023 10:48pm |
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| JWL Member Since: 26 Oct 2011 Location: Hereford Posts: 3443
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I did think of the spacer on the sensor but why all of a sudden would it be needed when it has been working perfectly for months?
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25th Nov 2023 11:40pm |
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| NickMc Member Since: 01 Oct 2014 Location: Norn Iron Posts: 1572
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You changed the sensor didn’t you? It could be slightly different or fell off. You really need an oscilloscope to look at the sensor wave it’s strange that it worked perfect after the wiring repair and now doesn’t again, investigate that further. I’d voltage drop test the starter before changing out., I’d also look at the earth on the engine bay as your instruments are earthed through it.
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26th Nov 2023 10:31pm |
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