 | Home > Puma (Tdci) > Noise on starting from cold - 2.2 Puma 29K |
 
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| doublea Member Since: 12 Jul 2011 Location: Aberdeenshire Posts: 494   
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Over the past six weeks or so, the 110 has been making a whining noise from the front of the engine, most noticeable in front of the radiator.
It only happens on the first start of the day and becomes intermittent then stops after about 120 seconds. The time has been a little less when the weather has been slightly warmer. It's like a low horn noise. Any ideas? Thanks, Doublea https://1drv.ms/v/s!Ar-D0Wz_PaxDkk9Urgv3QexGfIu9 PS not sure of the best way to post videos, hopefully this works. Current Steeds: 2015 110 UW in Grasmere Green 2003 BMW F650 the Hack 2000 Elise 1992 Ducati 888 (no longer in bits, yahoo) 1990 TDR 250 (in bits again) 1988 TDR 250 (no longer in bits) and for sale |
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21st Mar 2018 1:12am |
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| Balvaig Member Since: 19 Feb 2016 Location: Fife Posts: 721 
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Possibly a loose or worn serpentine belt. Often screech at startup.
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21st Mar 2018 9:14am |
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| Tdi4 Member Since: 24 Oct 2014 Location: Houten Posts: 513  
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Also check the tensioner arm and the pulleys (and their bearings). The normal service interval of the serpentine belt is around 60k miles so at 29k miles, it shouldn't be loose and or worn. a defender from 1984 pretending to be a puma with a touch of Range Rover
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21st Mar 2018 10:23am |
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| doublea Member Since: 12 Jul 2011 Location: Aberdeenshire Posts: 494
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Showed the video to the mechanic when the 110 was in for end of warranty check - he reckoned it was the viscous fan was at fault. Current Steeds:
2015 110 UW in Grasmere Green 2003 BMW F650 the Hack 2000 Elise 1992 Ducati 888 (no longer in bits, yahoo) 1990 TDR 250 (in bits again) 1988 TDR 250 (no longer in bits) and for sale |
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24th Mar 2018 12:12am |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 19669 
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I done mine at 60k.
Mine slipped on start up occasionally in cold weather, causing a small screech. Since changing the belt it's perfect now. Any chance any oil or slippery substance has contaminated the mating surfaces? I guess it's hard to tell though. Diesel$ Live$ Matter. ⛽️🛢️👨🔧🧰⚙️ RED, WHITE & BOOST! 🇬🇧 |
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24th Mar 2018 1:08am |
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| doublea Member Since: 12 Jul 2011 Location: Aberdeenshire Posts: 494
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The viscous fan coupling was replaced last March under warranty. By then the weather warned up and the noise was gone.
With the recent colder weather, the low horn noise has returned, so it wasn't the fan. Given that it goes away within a few minutes of start, could it be the water pump, which is warmed fairly quickly by the engine firing? Current Steeds: 2015 110 UW in Grasmere Green 2003 BMW F650 the Hack 2000 Elise 1992 Ducati 888 (no longer in bits, yahoo) 1990 TDR 250 (in bits again) 1988 TDR 250 (no longer in bits) and for sale |
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4th Feb 2019 12:03am |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 19669
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It could be the bearing but typically it's belt slip, after a short time the belt its self would warm I would have thought and grip more and thus noise gone.
I would change the seppentine belt, they are not hard to change no special tools needed at all. Just be careful of fingers with tensioner that's about all. 
Then you could rule it out if not, for little cost. Diesel$ Live$ Matter. ⛽️🛢️👨🔧🧰⚙️ RED, WHITE & BOOST! 🇬🇧 |
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4th Feb 2019 1:02am |
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