Car keeps blowing crank sensor!

1. Jaffaa Frequent Poster Joined: Jul 2007 Posts: 682

   #1 30th September 2013, 17:56

   Hi all, my car cut out on my drive and RAC came out to have a look, the guy pulls out the crank sensor as its not giving out a reading and it looks like this!!
   
   
   
   Fitted a new one today, car starts fine, ran on idle for about 10 minutes, pulled off drive revved up to 3-4k as driving off and it popped again!
   
   RAC think its something inside gearbox catching it or electrical fault possibly??? I dont know where to start!
   
   Thanks in advance
2. user_39461 Super Moderator Joined: Nov 2009 Cambridge(ish), UK. Posts: 10581 BMW 5x M50d.

   #2 30th September 2013, 18:56

   yes it's physical damage. it's either being allowed to go in too far or something internally is hitting it. Needs urgently addressing.

   1 user thanked this post: Jaffaa
3. Jaffaa Frequent Poster Joined: Jul 2007 Posts: 682

   #3 30th September 2013, 19:08

   Thanks, il whip the box off and see what i find
4. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

   #4 30th September 2013, 19:34

   Shouldn`t there be a plastic spacer plate that goes on 1st,followed by the crank sensor?
5. Jaffaa Frequent Poster Joined: Jul 2007 Posts: 682

   #5 30th September 2013, 21:29

   Im not sure? Ive read alot of posts about clearance issues causing this issue but the original sensor had been on the car 2 years before this happened hmmm
6. AlexBp West Midlands Joined: Dec 2007 West mids Posts: 23149 Supra,civic GL

   #6 30th September 2013, 21:47

   so its somehow hitting the flywheel if its doing that
   
   never seen that before
7. Jaffaa Frequent Poster Joined: Jul 2007 Posts: 682

   #7 30th September 2013, 23:28

   Quote:

   Originally Posted by AlexB so its somehow hitting the flywheel if its doing that never seen that before

   Could something become loose or trapped in there and hit it?
8. welshpug Saxperience Forum Bum Joined: Jul 2010 South Wales Posts: 3078 ZX 16v, 205 GTI, 309 Goodwood, 405 MI16.

   #8 1st October 2013, 11:02

   yes.
   
   ..
9. user_39461 Super Moderator Joined: Nov 2009 Cambridge(ish), UK. Posts: 10581 BMW 5x M50d.

   #9 1st October 2013, 13:43

   I had this fault on my range rover about a month ago. As I replaced the starter motor I bumped the sensor without realising. Cranking it over killed the sensor. Easily done. On saxos, it's a little harder as the bracket isn't adjustable but I guess it's still possible. You'd have to think perhaps part of the clutch is catching it or something, but I don't see how. Only way to really know is to remove the box I'm afraid.
10. welshpug Saxperience Forum Bum Joined: Jul 2010 South Wales Posts: 3078 ZX 16v, 205 GTI, 309 Goodwood, 405 MI16.

    #10 1st October 2013, 14:01

    or pull the sensor off and turn the engine over by hand (plugs out helps)
11. Jaffaa Frequent Poster Joined: Jul 2007 Posts: 682

    #11 12th October 2013, 22:42

    Still not made time to fix this yet anyhow heres a pic of the clutch
    
12. Jshjnr2 L-plater Joined: Aug 2013 bristol Posts: 53 Vtr mk1 purple s-reg needimg some work

    #12 12th October 2013, 22:58

    There is something broken off if you look carefully so id get the box off and youll prob find. The outer casing or something has broken away
13. MartinObviously Saxperience Forum Bum Joined: Dec 2012 Perth Posts: 3665 Peugeot 106 1.1 Turbo Peugeot 106 1.5D Turbo Peuge

    #13 12th October 2013, 22:59

    there is something stuck on your flywheel. you can see where it's been hitting the inside of the casing there.
    
    Rotate the engine by hand while looking in that hole, and remove whatever is in there.
    
    If it's a piece of clutch, then it's box off
14. Beaniemoo Established Member Joined: Oct 2008 Milton Keynes Posts: 1210 Yellow 106 Rallye

    #14 13th October 2013, 06:59

    I had this very same problem with a Saxo vts I bought. It came to me with a slight gearbox whine then one day driving it out the workshop it just cut out and wouldn't restart. Turned out the diff had failed cracking the gearbox casing inside the bell housing and a couple of fragments had gone round the flywheel and mullered the crank sensor.
15. Gabbastard Saxperience Post Whore Joined: Dec 2002 United Kingdom Posts: 8390

    #15 13th October 2013, 11:43

    I know what the problem is - by the looks of that picture, your crank sensor is packed with my pubes lol

    2 users thanked this post: Jaffaa, user_39740
16. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

    #16 13th October 2013, 14:58

    I`m not sure about all saxo`s but on mine there is a plastic spacer that goes on 1st followed by the sensor.At a guess the spacer stops the sensor from being fouled,to the op check this out.
17. Jaffaa Frequent Poster Joined: Jul 2007 Posts: 682

    #17 15th October 2013, 09:26

    Quote:

    Originally Posted by stevo67 I`m not sure about all saxo`s but on mine there is a plastic spacer that goes on 1st followed by the sensor.At a guess the spacer stops the sensor from being fouled,to the op check this out.

    Mine hasnt got a spacer mate, its more than likely something to do with the blatant piece of twisted metal sticking out of my clutch! See pic!

    1 user thanked this post: MartinObviously
18. user_20080 Saxperience Hardcore! Joined: Dec 2007 smurfland. Posts: 17346 Ex saxo owner.

    #18 15th October 2013, 21:59

    Yep my mistake should`ve looked at the pic.

    1 user thanked this post: Jaffaa
19. W343NNA Frequent Poster Joined: Mar 2012 Derbyshire Posts: 770

    #19 16th October 2013, 13:46

    Your clutch has shit itself or somthing my clutch did simulate but the car was vibrating loads and your could hear somthing not right inside the car when driving one of the pressure plate outer spring plates had sheered off causing fragments to hit my crank sensor sup risked you haven't felt anything out of the ordinary as your driving it as on mine it threw somthing out of balance causing the car to vibrate severely at around 3000 rpm+