 engine warm up, rough running till warm |
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Friday, 25 July 2025 |
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| simonr |
 Aug 21 2010, 07:31 PM
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#21
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Member  Group: Members Posts: 65 Joined: 11-July 10 From: Indianapolis Indiana Member No.: 11,925 Region Association: None  |
I do not have a high rpm at start up its about 1000 and does Idle . Does the AAR open wider when it is actually cold out. Mine is about half open . It does move freely but I am afraid that the spring is not moving it all the way open as that is where it was stuck. I understand these AAR units are difficult to obtain and a PIA to open and repair ?
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| underthetire |
Aug 22 2010, 04:46 PM
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#22
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914 Guru Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California |
well, mine used to open around 80 deg that I could remember, and I believe they open all the way at any ambient temp. I never measured the temp they start to close at. I used aero Kroil to loosen mine up, soaked it overnight and it worked like a champ. Even at 1/2 open, your idle should be a little high. I would jump the wire from it to the battery and see if it closes all the way. And a little trick to make sure it's opening, is liquid freeze. Any of those "dusters in a can" held upside down will chill anything enough to test it.
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| simonr |
Aug 24 2010, 04:22 PM
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#23
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Member Group: Members Posts: 65 Joined: 11-July 10 From: Indianapolis Indiana Member No.: 11,925 Region Association: None |
Put aar in freezer for half an hour . It opened wide . I quickly installed it and the Idle went up to 1800 as it should and slowly came back down . I put the extention back on the cht sensor and it made a big difference. the car is still cold blooded but much easier to live with
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