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rough idle

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Old 03-10-2009, 06:02 AM
  #41  
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no problem... im glad you are happy..

btw we told you to do the cleaning first before u do the seafoam.
you could save a trip for yourself. But if the idle is good now then its okay.
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Old 03-10-2009, 02:24 PM
  #42  
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what is your engine supposed to idle at?
somone was saying their idle was 700 and rough?
my car idles at 1000
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Old 03-10-2009, 02:44 PM
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700 to 1000 RPM is normal. Remember you idle will be higher when you first start it and higher on cold days.

I checked mine the other day and it was at about 700 or so RPMs on a 60+ degree day after it was warmed up.
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Old 03-10-2009, 03:10 PM
  #44  
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ok the rough idle is back again when im rolling and slowing down it bounces up and down also when i cleaned the MAF sensor i didn't disconnect the battery i just unplugged it
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Old 03-10-2009, 03:56 PM
  #45  
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Just to be clear, this is a 4 banger. A small amount of idle searching (especially when first letting off the throtlle or when the AC is on) is 100% normal. It will not sit and idle perfectly smooth all the time. A bit of rough idle (though not stalling) should not concern anyone.

Mine idles pretty smoothly most of the time. It will sometimes get rough off and on, but nothing that should concern anyone. So be sure you really have an idle issue before getting too concerned.

The car should idle at 1000 rpm or a bit above when you first start it cold. The idle should settle down to around 700 rpm or so as it warms up. A car should idle at the lowest possible rpm without stalling itself.

If you turn the AC on, idle should get bumped a bit to compensate, but it should steady out and try to hold a value. It will get rough and you will notice a dip when the AC compressor cyles on or off in this case.
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Old 03-10-2009, 04:00 PM
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well when i let it warm and when the cars running the idle is right at about 700 so that's normal i just hate that rough idle sound it bounces up and down gets annoying makes it sound like i have bigger cams but its only when im rolling and /or when im coming to a complete stop
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Old 03-10-2009, 05:54 PM
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Originally Posted by SuShIxFiSh
well when i let it warm and when the cars running the idle is right at about 700 so that's normal i just hate that rough idle sound it bounces up and down gets annoying makes it sound like i have bigger cams but its only when im rolling and /or when im coming to a complete stop
Have you taken the spark plugs out and checked them? You might have one of them starting to go on you. Not enough for the computer to catch it as a misfire, but enough for you to feel it.

So you're saying that as you slow down, the rpm's blip up and down? if the car is just parked, the idle is smooth? Is this an auto or manual?
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Old 03-10-2009, 06:01 PM
  #48  
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ooo ok ill take a look at them maybe tonight and see i hate it man i hate the sounds the idle going up and down hahaha cuz of my exhaust i can hear it clearly do yout think that its deff the spark plugs
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Old 03-10-2009, 06:50 PM
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what is the rough idle?

400-500!
thats what i had.. my headrest and my steering wheel was shaking! did all what i told u guys and so far its good again.
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Old 03-10-2009, 06:57 PM
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i did what you said and it came back what could it be lil i said when i take my foot off the gas and push the clutch in my idle bounces up and down
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Old 03-10-2009, 07:08 PM
  #51  
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try to change the sparkplugs
its like 10 dollars each. get them from toyota! they are pre gapped
you dont need any performance poop plugs
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Old 03-10-2009, 07:09 PM
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ok ill do that so it will be roughly about 40 bucks for the plugs
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Old 03-10-2009, 08:21 PM
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If you have bad plugs.. what mileage do you have? Our stock iridium plugs have a LONG life (not recommended for changing until around 100,000 miles) so if you dont have a good number of miles and your plugs are bad, then you have other issues.

If it just does it right when you let off and push in the clutch, but idles fine sitting still, I ahve a feeling you are being a bit paranoid and thre is nothing wrong with your car. Again, you need to be sure there really is an issue before you replacing parts left and right.
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Old 03-10-2009, 08:31 PM
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http://www.youtube.com/watch?v=UpmEte1DdQg watch that that's how it sounds when im rolling and i push the clutch in but when im ap a complete stop it idle at 700rmp
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Old 03-10-2009, 08:33 PM
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this is a better vid on how it sounds and my rpm jumps like that also only when im rolling it does that http://www.youtube.com/watch?v=EL-AV...eature=related
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Old 03-10-2009, 08:53 PM
  #56  
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What air filter are you running? I ran a K&N on my CAI it took 17000 miles but my car started acting like I had bad gas. I poured in water remover and drove the crap out of the car to get all the gas out and once I refilled it the problem was still there. Out of dumb luck I bought some MAF sensor cleaner removed the sensor and cleaned it. After it was dry I reinstalled started the car, let it idle for several minutes, and I didn't have another issue. I found out later the oil from the K&N got on the MAF sensor and messed it up. It was a brand new intake and K&N filter. It wasn't even dirty or I didn't have the miles to have to clean it yet, I removed it direct from the factory out of the plastic bag and installed it. So I changed to an AEM Dryflow and no issues!
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Old 03-10-2009, 08:55 PM
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hmmm well i clean my MAF sensor it was completely black
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Old 03-10-2009, 09:21 PM
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Check your plugs now.
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Old 03-10-2009, 09:22 PM
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i only ahve like 47 or 48k on the car
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Old 03-11-2009, 12:11 AM
  #60  
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blown head gasket?
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