jacob
Member Since: 12 Jan 2006
Location: athens
Posts: 145
  
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| strange noise, followed by reduce and increase of rpms |
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Hello there !!!
Today, when started the engine, i noticed in idle position, a sound like ''clik'' behind the dash or
at the back of the bonnet, followed by immdiadely droping of rpms (around 50/100) and noticable change of engines sound, after almost 5 seconds, the same ''clik'' and the rpms increased to normal position.
The ''clik'' is like a switch, or a rele..open and close..every almost 5 seconds, i test to see if happends while apply the throtle..and again same think happend.
No faults, or errors, or smthing else, the car otherwise is fine. Any idea what this could be ????
pleased to hear from you
regards
Jacob
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 2nd Feb 2009 6:01 pm |
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Reggieb
Member Since: 13 Sep 2007
Location: Watford, Herts.
Posts: 707
 
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Sounds like the clutch on the A/C cutting in and out with the associated drag on the engine, doesn't sound like problem. TDV6 HSE - Light Guards - White Reflective Sticker
Club--Engel
Club--Satnav on the move (Thanks Pete)
Club--Kumho KL71 (265/70 17) they kick!
Club--Three Musketeers
Club--GNVP Sump Guard (The nuts)
Disco3Club
Never take life seriously. Nobody gets out alive anyway.
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| 2nd Feb 2009 6:11 pm |
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10forcash
Member Since: 09 Jun 2005
Location: Ubique
Posts: 16534
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Try turning the ATCM off or onto 'econ', if this stops the issue, then it's the aircon kicking in & out
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| 2nd Feb 2009 6:18 pm |
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stapldm
Member Since: 11 Sep 2006
Location: Swine Town
Posts: 2330
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I thought the D3 has a continuously variable actuator for the aircon compressor, rather than the inefficient magnetic on/off clutch? Are there variants? Dr. Ian Malcolm:
"Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should."
Transgenic tomato anyone?
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| 2nd Feb 2009 6:28 pm |
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jacob
Member Since: 12 Jan 2006
Location: athens
Posts: 145
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Thanks guys yr fat responce
tfc the air con is off when i hear the noice....is there smthing which goes on and off
even w/out me to open the air con ????
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| 2nd Feb 2009 6:31 pm |
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10forcash
Member Since: 09 Jun 2005
Location: Ubique
Posts: 16534
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nothing that comes to mind - do you have a second battery fitted with an 'intelligent' controller?
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| 2nd Feb 2009 6:35 pm |
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jacob
Member Since: 12 Jan 2006
Location: athens
Posts: 145
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Thanks tfc, and yes i have a second battery with a smart cotroller, which aytomaticaly connects the two batteries
hever i have this almost a year now and never had a problem...or smthing like tht.
thks/regards
Jacob
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| 2nd Feb 2009 6:40 pm |
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10forcash
Member Since: 09 Jun 2005
Location: Ubique
Posts: 16534
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could be that the second battery is discharged or has a bad cell, the change in revs may be due to increased load on the alternator. Disconnect the second battery and see if the issue is resolved
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| 2nd Feb 2009 6:46 pm |
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jacob
Member Since: 12 Jan 2006
Location: athens
Posts: 145
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ok mate ...noted will do tht tonight..also i will mesure the second battery as well to see her condition..
will report back tomm thks vm guys.
regards
Jacob
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| 2nd Feb 2009 6:51 pm |
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10forcash
Member Since: 09 Jun 2005
Location: Ubique
Posts: 16534
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no worries matey! 
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| 2nd Feb 2009 6:53 pm |
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countrywide
Member Since: 16 Sep 2007
Location: UK
Posts: 6019
 
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Amazing without even knowing there is a second battery he picks up on it 
EDIT: 10ForCash as your VAT registered you could do warranty work via the Tesco policy can't you. Might be worth setting up with them as an approved supplier, if they do such a thing.
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| 2nd Feb 2009 7:14 pm |
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10forcash
Member Since: 09 Jun 2005
Location: Ubique
Posts: 16534
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no reason Why I can't - pretty busy this week but i'll look into it
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| 2nd Feb 2009 7:30 pm |
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10forcash
Member Since: 09 Jun 2005
Location: Ubique
Posts: 16534
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Tesco Car Warranty Plan wrote:You choose the repairer you want to fix your vehicle, including franchised dealers. All we ask is that the garage is VAT registered
Going to contact them over the next few days, could be good for Disco3'ers and me 8)
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| 2nd Feb 2009 10:24 pm |
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jacob
Member Since: 12 Jan 2006
Location: athens
Posts: 145
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Hello again, just to report back....
10fc, you were apsolutely right mate,.. it was the second battery, which was at very low levels
as my son, opened by mistake the car pc which is connected directly to this batery and it was working fr a couple of days, as i did not moved the car at all fr those two days, so the second battery was drained and partly the main battery as both are ''smartly'' connected eachother...so the altenator was working overtime to charge them.
Now everything is ok, back to normal life...
thks for yr assistance guys, and TFC....you are great
regards
jacob
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| 3rd Feb 2009 10:58 am |
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