What is Normal Idle for A 2007 5-Speed LS??????????? - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
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post #1 of 8 (permalink) Old 09-09-2011, 11:03 PM Thread Starter
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What is Normal Idle for A 2007 5-Speed LS???????????

What is the "normal" idle for a 5-speed LS model?
With the AC off, when i take it out of gear into neutral it idles anywhere between 1000-1300rpm. But when i stop, it drops it down to 800 rpm and keeps it rock steady. No higher, no lower.

But when the AC is on, when i take it out of gear into neutral, it idles down straight to 800rpm no problem.

It started doing this when my purge valve shorted out, and is still doing this well after i got it replaced.

Only had it for a few months now and just a little curious.

Last edited by pross8002; 09-09-2011 at 11:11 PM.
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post #2 of 8 (permalink) Old 09-10-2011, 08:59 AM
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mines always idles at 750 when its warmed up.

Last edited by scagnetti76; 09-10-2011 at 10:48 AM.
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post #3 of 8 (permalink) Old 09-10-2011, 10:45 AM
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yea, about 7-800 is around the idle if I remember correctly from when I had my 2.2

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Last edited by Beamer; 09-10-2011 at 11:13 AM.
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post #4 of 8 (permalink) Old 09-10-2011, 11:09 AM
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drop those k's beamer. lol
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post #5 of 8 (permalink) Old 09-10-2011, 11:09 AM
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Quote:
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yea, about 7k-8k is around the idle if I remember correctly from when I had my 2.2
man thats higher than my rev limitor. you mean 700-800

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post #6 of 8 (permalink) Old 09-10-2011, 11:13 AM
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lol, my B yo. C'mon you saying idle should not be passed the cut off? lol

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post #7 of 8 (permalink) Old 09-10-2011, 12:41 PM Thread Starter
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Thanks. Lol
Just wasn't to sure since about it so i thought i'd ask.
Just got done replacing the wheel bearing on the passenger side. SO much quieter now
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post #8 of 8 (permalink) Old 09-15-2011, 10:54 PM
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Quote:
Originally Posted by pross8002 View Post
What is the "normal" idle for a 5-speed LS model?
With the AC off, when i take it out of gear into neutral it idles anywhere between 1000-1300rpm. But when i stop, it drops it down to 800 rpm and keeps it rock steady. No higher, no lower.

But when the AC is on, when i take it out of gear into neutral, it idles down straight to 800rpm no problem.

It started doing this when my purge valve shorted out, and is still doing this well after i got it replaced.

Only had it for a few months now and just a little curious.
I'm pretty sure with the AC on or off, whether I'm rolling or at a stop the idle RPM's are the same, around 8k. I'll verify and let you know though.

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