Defender HELP! Defender Puma Issue





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  1. #1
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    Default HELP! Defender Puma Issue

    This might be slightly long winded but I am hoping someone may be able to help/offer advice. The car in mind is a 2010 Defender Puma.

    I was driving along Strand Street and noticed at the last minute that I was about to drive through a red light so immediately jumped on the brakes. I pulled up easily enough, not a dramatic stop at all. But afterwards I heard a popping sound (similar to a resistor being blown in a circuit) and some smoke and the smell of burning entered the cab. It appeared to be coming from the steering wheel area. I drove 200-300m further to a point where I could pull over and assess the situation. I then found out that the handbrake was no longer working. You could pull it up and the light would come on but it felt as though no cable was attached. The base of the handbrake felt warm too.

    After stopping I checked underneath the car and there wasn't anything hanging or dripping. I briefly felt all the fuses to see if I could feel any heat on them but couldn't find anything alarming. I have subsequently looked at some of the fuses relating to braking and are in working order.

    I then drove off very cautiously feeling sorry for myself. The smell had gone by now and didn't seem to be returning. But while I was driving the last few km to my destination I noticed the engine would 'stall' briefly when I lifted off. The oil pressure and glow plug warning lights would light up. But when I changed down or put my foot on the throttle the car would 'start' again and drive as if nothing had happened and the warning lights would disappear. When I got to my destination I checked the oil level which seemed to be fine. I looked at the oil level cold as well and it seemed to be fine.

    All electrical systems seem to be working. The lights work, indicators, radio etc.

    Can anyone offer advice? I have tried looking at the handbrake drum and find the cable but I'm not sure where the cable should be not what the drum should look like. Please help!

  2. #2
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    Default Re: HELP! Defender Puma Issue

    Do these Pumas have Abs?

  3. #3
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    Default Re: HELP! Defender Puma Issue

    Hi

    I think you may have loosened a battery cable under hard breaking and it possibly shorted. Check the terminals on the battery and also all the negative earthing points on the chassis. There are more than one. I don't think the hand brake has anything to do with it.

    Cheers
    Claude

    Defender Puma Raw Limited Edition
    Series III 88"
    Scout Nomad


    Chop your own firewood and it will warm you twice

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  5. #4
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    Default Re: HELP! Defender Puma Issue

    I suppose it can't hurt too much to get diagnostics done.
    Defender 2.8i

    People talking without speaking
    People hearing without listening

  6. #5
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    Default Re: HELP! Defender Puma Issue

    Quote Originally Posted by Skylark View Post
    Do these Pumas have Abs?
    Yes
    Sam
    ZS1SAM
    V5/ZS1SAM

  7. #6
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    Default Re: HELP! Defender Puma Issue

    Yep, sounds like two different issues here, since the handbrake operates manually and independently.

    After you've checked the battery terminals and the earth, crawl underneath and see if the propshaft bolts on the handbrake drum are loose.
    2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
    2015 Range Rover Sport Supercharged V8 HSE Dynamic



    Discovery 4 Workshop Manual: https://bit.ly/2zZ1en9

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  8. #7
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    Default Re: HELP! Defender Puma Issue

    This could get interesting.

    Somewhere in my memory banks I recall something about a motor losing its earth connection and then getting earth via a steel brake cable. That might help explain the warm handbrake mechanism.
    Cheers

    ZS5KAD
    3 V8's
    NA TwinTurbo SuperCharger
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    The frogs are starting to notice that the water is getting warm but it is already too hot to do anything about it.....

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  10. #8
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    Default Re: HELP! Defender Puma Issue

    Sounds silly, but check the wire going to the switch on the handbrake, mine got caught in the mechanism.
    2010 Defender Puma (Toolbox)
    2017 BMW F700GS
    2013 Suzuki DR650 (back to basics)

  11. #9
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    Default Re: HELP! Defender Puma Issue

    Quote Originally Posted by Fluffy View Post
    This could get interesting.

    Somewhere in my memory banks I recall something about a motor losing its earth connection and then getting earth via a steel brake cable. That might help explain the warm handbrake mechanism.
    Defender handbrakes are always warm!
    My calf will tell you

    Defender Puma Raw Limited Edition
    Series III 88"
    Scout Nomad


    Chop your own firewood and it will warm you twice

  12. #10
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    Default Re: HELP! Defender Puma Issue

    Quote Originally Posted by Fluffy View Post
    This could get interesting.

    Somewhere in my memory banks I recall something about a motor losing its earth connection and then getting earth via a steel brake cable. That might help explain the warm handbrake mechanism.
    yep, me too

    something about current going through the hand brake cable
    2012 Jeep Sahara Unlimited 3.6 V6
    Percivamus

  13. #11
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    Default Re: HELP! Defender Puma Issue

    Check the brake pedal switch, if this is shot the brake lights will not work and you get the "high revving" gear changes.
    Die ren is 'n dag nader as gister.

  14. #12
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    Default Re: HELP! Defender Puma Issue

    Thanks for the advice so far, much appreciated! I have had a look at the battery terminals which are fine. I have tried to look at the earthing points but I have no idea what I'm looking for (i.e. what is normal). The car is running fine now (minus the handbrake) so whatever happened hasn't affected driving. I suspect that it is an earthing issue like you guys suggested.

    Does anyone know where the handbrake cable enters the drum? I just want to see what if I see what is happening from that side.

  15. #13
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    Default Re: HELP! Defender Puma Issue

    Check my signature for the workshop manual - everything you need is in there
    2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
    2015 Range Rover Sport Supercharged V8 HSE Dynamic



    Discovery 4 Workshop Manual: https://bit.ly/2zZ1en9

    Defender Puma Workshop Manual: https://bit.ly/2zXrtKO
    Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ

  16. #14
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    Default Re: HELP! Defender Puma Issue

    Quote Originally Posted by ClaudeG View Post
    Defender handbrakes are always warm!
    My calf will tell you
    Defenders have handbrakes?

    Mine has a type of lever down by my left leg somewhere that when I pull, it might hold the vehicle in place, on a flat surface. My whole dash area gets quite warm, never mind the 'handbrake'.
    Last edited by Naes-Landy; 2019/08/25 at 01:08 PM.
    1998 Defender 90 TDi 300 for Africa.
    2014 Ford Fiesta 1L EcoBoost petrol for Europe.

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  17. #15
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    Default Re: HELP! Defender Puma Issue

    Options are put stp sound and heat proofing under the carpet.. DIY.. worked for me. Second option is to remove the cat drops the temp by 25 deg

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