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High idle, loud squeal when starting.
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JimNic2
Joined: 06 Nov 2008
Posts: 2
Location: Amsterdam, NY
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 High idle, loud squeal when starting. |
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I have a 2001 (early '01) Passat with a 1.8T. Depending on outside temperatures, when starting the car there will be a loud squeal and high idle (14-1600 rpm) for the first 30 seconds or so. Once it warms the sound goes away and rpm's go back to normal idle. Any clues?
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| Thu Nov 06, 2008 12:45 am |
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daem
Joined: 19 Aug 2008
Posts: 411
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Hello, Good news the idle should do just that on a cold day. Until the engine temperature reaches a set minimum level, it prevents poor combustion. The squeal is probably a loose, contaminated , or failing belt. They are a rotine maintenance item. Allan
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| Thu Nov 06, 2008 2:15 am |
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JimNic2
Joined: 06 Nov 2008
Posts: 2
Location: Amsterdam, NY
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Thanks for the reply. The sound has a higher pitch than a belt squeal and will only do it between certain outside temps. I was told today it may be a secondary air pump going bad.
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| Fri Nov 07, 2008 2:16 am |
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simonsaysgo
Joined: 08 Nov 2008
Posts: 1
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My 2002 Jetta 1.8t does the same thing.
I've found that it is the secondary air pump. It should not sound like that if all is OK. It could be caused by a bad combi valve or solanoid.
Does it sound like this?
http://www.youtube.com/watch?v=xksFU5TFVDo
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| Sat Nov 08, 2008 9:59 pm |
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