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Thread: Td5 intermittent longer crank time when starting

  1. #1
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    Td5 intermittent longer crank time when starting

    Been having issues for several months when starting my 2006 110 Td5. Half the time it cranks longer than usual. Always starts eventually and drives flawlessly, but worried that it might be a sign of bigger issues to come. It also occasionally throws up a check engine light that disappears after the subsequent start. Nanocom gave the following code:

    (15,2) HIGH SPEED CRANK (LOGGED).

    The crank sensor was replaced with a new unit last year. I've also recently replaced the FPR (which made no difference) and checked the battery (which is operating perfectly). Would be thankful for any other suggestions, especially from people who have had a similar problem.

    I've attached YouTube videos of a normal start and the delayed start:

    Good start
    Defender TD5 Good Start - YouTube

    Bad start
    Defender TD5 Bad Start - YouTube

  2. #2
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    There is a spacer available that can be used to shim the CPS to the right gap.

    I've had the noisy crank fault before and tried that, but it was just a "noisy" starter motor, changed that and no issues since.

    Just note that it was cranking fine, the only issue was the interference from it when cranking.

  3. #3
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    Quote Originally Posted by shack View Post
    There is a spacer available that can be used to shim the CPS to the right gap.

    I've had the noisy crank fault before and tried that, but it was just a "noisy" starter motor, changed that and no issues since.

    Just note that it was cranking fine, the only issue was the interference from it when cranking.
    Thanks for the reply mate! Starter motor was on my mind as a possibility as well. Did you replace the whole unit or rebuild it using the solenoid/plunger kit?

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    Quote Originally Posted by PeteCrenshaw View Post
    Thanks for the reply mate! Starter motor was on my mind as a possibility as well. Did you replace the whole unit or rebuild it using the solenoid/plunger kit?
    I rebuilt the solenoid, but that didn't help.

    I ended up putting a good 2nd hand one on.

    It's the actual motor that's noisy I guess.

  5. #5
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    Shack's answer is a goodie.

    But remember, "just because it's new doesn't mean it's good " is a mantra everyone should learn. Can you beg another CPS from somewhere?
    ​JayTee

    Nullus Anxietus

    Cancer is gender blind.

    2000 D2 TD5 Auto: Tins
    1994 D1 300TDi Manual: Dave
    1980 SIII Petrol Tray: Doris
    OKApotamus #74
    Nanocom, D2 TD5 only.

  6. #6
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    Quote Originally Posted by Tins View Post
    Shack's answer is a goodie.

    But remember, "just because it's new doesn't mean it's good " is a mantra everyone should learn. Can you beg another CPS from somewhere?
    Yeah, I'll have a look for another one - it's been doing me fine for the last year though. The other thought I had was that if this problem were CPS related (either sensor or wiring), would I not also experience problems while driving? As far as I know the CPS is constantly feeding information to the ECU, and my issue has always been limited to the occasional start-up.

  7. #7
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    Quote Originally Posted by PeteCrenshaw View Post
    Yeah, I'll have a look for another one - it's been doing me fine for the last year though. The other thought I had was that if this problem were CPS related (either sensor or wiring), would I not also experience problems while driving? As far as I know the CPS is constantly feeding information to the ECU, and my issue has always been limited to the occasional start-up.
    Yes. Most likely. Which is why I said shack's answer was a goodie.

    Have a read here. I haven't read the entire thing but you may get some help.
    ​JayTee

    Nullus Anxietus

    Cancer is gender blind.

    2000 D2 TD5 Auto: Tins
    1994 D1 300TDi Manual: Dave
    1980 SIII Petrol Tray: Doris
    OKApotamus #74
    Nanocom, D2 TD5 only.

  8. #8
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    Quote Originally Posted by PeteCrenshaw View Post
    Yeah, I'll have a look for another one - it's been doing me fine for the last year though. The other thought I had was that if this problem were CPS related (either sensor or wiring), would I not also experience problems while driving? As far as I know the CPS is constantly feeding information to the ECU, and my issue has always been limited to the occasional start-up.
    Before a big drive...

    Start the car, clear faults, go for aforementioned big drive, turn car off, turn ignition back but don't start or try and crank it over.

    Scan for faults, see what you have..I bet it's only appearing after cranking.

  9. #9
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    Problem all sorted! Turned out to be the worn/pitted solenoids (see attached pic) on the starter motor. I replaced these with a $20 eBay kit and she starts beautifully each and every time Thanks to everyone for their suggestions!
    Attached Images Attached Images

  10. #10
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    I guess it was the starter that was causing the "high speed crank" fault.

    Realistically the fault is probably suggesting that it hasn't got a clean signal.

    There could be electrical or mechanical "noise" I guess.

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