 | Home > Puma (Tdci) > Puma 2.2 rev hang |
 
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20304  
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Replace or bridge the clutch switch. 👍🏻
Likely cause of the issues you’ve described. ⭐️⭐️God Bless the USA 🇬🇧🇺🇸 ⭐️⭐️ |
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9th Feb 2020 12:54pm |
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| Rickydodah Member Since: 14 Jul 2014 Location: East Sussex Posts: 1091 |
I'm not sure on the differences between the 2.2 but I had this on my 2.4 and it made it more of a nuscience than any thing else as the engine ran well otherwise. The cure in my case was to replace the stock air intake to a flexible silicone tube from the inner wing to the air filter. The air filter casing was modified as per the advice on the forum. It was almost like a petrol engine when the throttle butterfly closes and causes too much vacuum introducing a resistance. My only explanation is that without the turbo spinning as fast the engine has trouble sucking enough air. Consequently gear changes are smoother and more importantly quicker and without the inevitable clunk. I've since driven a few more Defenders and they all showed this characteristic......may not cure this on yours but for me it was £30 and few hours well spent. I started with nothing and still have most of it left!
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9th Feb 2020 1:07pm |
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| UtilityTruck Member Since: 09 Jan 2014 Location: Oxford Posts: 463
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My understanding is that it’s correct operation. The engine is held at a certain rpm during the gear change to improve shift smoothness, it avoids the revs dropping too much during the slooooow change! 2014 Keswick Utility 2.2
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9th Feb 2020 2:04pm |
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| Matt Member Since: 28 Feb 2011 Location: Aylesbury, Bucks Posts: 180 
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Just check round the back to make sure your brake lights are working, the fuse that controls the brake lights also controls the switch on the clutch master cylinder which if blown makes the revs hang on after the throttle is released. Blown fuse is often caused from towing a trailer with dodgy wiring! 15 plate 2.2SW XS
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9th Feb 2020 2:28pm |
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| ericvv Member Since: 02 Jun 2011 Location: Near the Jet d'Eau Posts: 5816  
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It is a built in feature of the 2.2 Puma Defender. Purpose is to make it more driveable. Not everybody likes it though. If you do a search on here with « rev hang » you get two pages of threads discussing this.
Eric You never actually own a Defender. You merely look after it for the next generation. http://youtu.be/yVRlSsJwD0o https://youtu.be/vmPr3oTHndg https://www.youtube.com/watch?v=_GtzTT9Pdl0 https://www.youtube.com/watch?v=ABqKPz28e6A https://www.youtube.com/watch?v=rLZ49Jce_n0 https://www.youtube.com/watch?v=XvAsz_ilQYU https://www.youtube.com/watch?v=K8tMHiX9lSw https://m.youtube.com/watch?v=dxwjPuHIV7I https://vimeo.com/201482507 https://www.youtube.com/watch?v=ZSixqL0iyHw Last edited by ericvv on 9th Feb 2020 6:52pm. Edited 1 time in total |
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9th Feb 2020 2:44pm |
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| 90 Dreamer Member Since: 13 Jul 2019 Location: Oop North Posts: 2142 
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Must have been driving 'wrong' all of these years then............
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9th Feb 2020 2:48pm |
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