 cold weather - very high idle, 3500 rpm at startup |
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| cassidy_bolger |
 Dec 29 2006, 12:10 PM
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Member  Group: Members Posts: 106 Joined: 17-March 06 From: = Member No.: 5,737 Region Association: None  |
My '73 2.0 sat for a week while I was on vacation. I fired it up this morning to head to work, and the idle was super high - 3500 rpm. It has been cold (for this area) last night's low was 30. I tried to back it up and see if things would calm down, but running it made me nervous and I was late for work so I took my backup vehicle. This 914 has been driven nearly every day and has run well since I bought it last spring, so this is unusual.
Where should I start? I checked the throttle cable at the engine, and it isn't stuck. Is something frozen? Should I just try to drive is a few blocks and warm it up? Thanks, cassidy 73 2.0 |
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| Air_Cooled_Nut |
Dec 29 2006, 02:58 PM
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914 Ronin - 914 owner who lost his 914club.com Group: Members Posts: 1,748 Joined: 19-April 03 From: Beaverton, Oregon Member No.: 584 Region Association: None |
Start her up and let her "idle" for about a minute. If the rpm doesn't start to slow down, and eventually hit normal idle rpm, then your AAR is likely stuck open. It's normal for a high idle until the AAR warms up (it's electrically heated, thus the wire coming out from under it) and should drop the high rpm around a minute or less.
A properly functioning AAR makes cold start-ups and driving easier until the engine reaches operating temp. I removed mine and it was a bitch to drive in traffic (stop-n-go) without killing the engine until the engine got hot (not warm) enough to idle well without dying. |
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Posts in this topic
cassidy_bolger cold weather - very high idle Dec 29 2006, 12:10 PM
r_towle warm it up.
If your AAR valve is stuck, it will ne... Dec 29 2006, 12:13 PM drewvw you can try spraying some pb blaster in the AAR an... Dec 29 2006, 12:47 PM cassidy_bolger thanks, I'll look into it.
maybe a little hea... Dec 29 2006, 12:49 PM jim_hoyland Been down this road and the above are possible. Yo... Dec 29 2006, 06:29 PM
cassidy_bolger Problem solved, classic lessons learned - again.
... Dec 29 2006, 08:44 PM |
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