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Rough Idle...only when a/c turned on...

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Old 07-01-2003, 08:31 PM
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Default Rough Idle...only when a/c turned on...

Hi everyone,

I've got a 2000 civic coupe with d16y8 with minor bolt ons and all of sudden I've noticed a rough idle when the a/c is turned on. I've done a new gas filter at 25k, plugs at 30k and it has 33k currently. Please let me know if this is something that sounds familiar! Thanks in Advance.

Old 07-01-2003, 08:41 PM
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Default Re: Rough Idle...only when a/c turned on... (Twinkie2000)

I have a 99 coupe and it does have a little shaky idle as well when the a/c is on. I think it is normal, my exhaust sounds different too when it's on.

I never use it though b/c I love having the windows down.
Old 07-01-2003, 08:46 PM
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Default Re: Rough Idle...only when a/c turned on... (BLACK99civicEX)

there's more of a load on the engine.
Old 07-10-2003, 11:15 PM
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Default Re: Rough Idle...only when a/c turned on... (Emerika)

If the idle is really off, like the car's about the shut off, check the battery.
Old 07-10-2003, 11:39 PM
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Default Re: Rough Idle...only when a/c turned on... (Twinkie2000)

Could also be the compressor/clutch. It really depends on how shakey the car is getting. A little bit is normal, but a very very low idle is not. Give us some more details....
Old 07-10-2003, 11:51 PM
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Default Re: Rough Idle...only when a/c turned on... (EKology)

My car does the same thing also. But my A/C isnt on. But I really need a tune-up,

so maybe thats the problem.

Alex
Old 07-11-2003, 12:10 AM
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Default Re: Rough Idle...only when a/c turned on... (Simple 4dR)

well the car should be working harder...but if it starts to get REALLY rough, to the point where the engine stops. then you have a problem.
Old 07-11-2003, 12:19 AM
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Default Re: Rough Idle...only when a/c turned on... (JUN EK9)

the engine is under more load when its on, check the alternator if it sounds like its going to die
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