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car hiccups on idle? please help

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Old Jan 11, 2010 | 08:00 PM
  #1  
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From: In my evo
car hiccups on idle? please help

I need a little advise..while im at a light or stopped on idle, the car will hickup. The rpms will drop slightly and bounce back up. It happens often and ive been noticing it more now.

Help will be appreciated thanks..
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Old Jan 11, 2010 | 11:39 PM
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From: The Stream Of Carol , IL
oh snap!!!!
That sounds like a problem originationg from you Intake manifold.
1-Check all vacuum lines going to and from the IM
2-Try taking off you Throttle body and give it a good cleaning
3- Check you Idle air Controller on your Intake manifold and see if that is the culprit(most likely)
4-GL
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Old Jan 11, 2010 | 11:41 PM
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From: in my Evo
mine did the same, but as soon as i lay into the throttle, i completely forgot about the idle, lol
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Old Jan 11, 2010 | 11:48 PM
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From: The Stream Of Carol , IL
Originally Posted by idriveanevo
mine did the same, but as soon as i lay into the throttle, i completely forgot about the idle, lol
LOL , I like your style
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Old Jan 12, 2010 | 06:23 AM
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haha i like ur pic of alan from hangover! lol one funny movie!...but back to the topic im going to try and find a vaccum leak and try cleaning out my throttle body.

any other ideas?
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Old Jan 12, 2010 | 06:27 AM
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From: Secret Tweaker Pad
Change your spark plugs too.
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Old Jan 12, 2010 | 06:51 AM
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From: CT
id deff check for a boost leak
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Old Jan 12, 2010 | 07:11 AM
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From: In my evo
Originally Posted by TeStUdO
Change your spark plugs too.
this is what i was thinking. I have 7ES plugs in there now but maybe they are bad
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Old Jan 12, 2010 | 07:11 AM
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From: In my evo
Originally Posted by SRT4toEVO
id deff check for a boost leak
Im going to have to get on it and check for leaks...also going to change the plugs and see what that does for me
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Old Jan 12, 2010 | 11:19 AM
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Are you using an aftermarket air filter?
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Old Jan 12, 2010 | 01:45 PM
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From: In my evo
Originally Posted by samurai85
Are you using an aftermarket air filter?
no stock airbox...why what would that have to do with anything?
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Old Jan 13, 2010 | 03:49 PM
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A lot of people with aftermarket air filters/intakes have problems with MAF sensors and as a result have issues with idle.
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Old Jan 13, 2010 | 06:12 PM
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From: Orange/Rockland, NY
Yeah, change the plugs. The cold air here in the Northeast is kicking every ones ***. I had bucking at WOT. Checked the gap on the plugs and it was better.
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Old Jan 13, 2010 | 07:11 PM
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From: Port Saint Lucie, FL
Check your plugs. Soon as it dropped real low in temps down here, my idle jumps around more than kids on a trampoline. Between 850 to about 1k in my opinion. I've checked my IM, throttle body and for any vacuum leaks. I have yet to check the plugs but I think they're the culprits because it is about time to change them. Some intakes and BOV's can cause erratic idle as well.
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