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rough idle at stert up....

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Old Jan 8, 2008 | 11:52 AM
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sandiegocanuck's Avatar
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Default rough idle at stert up....

Pulling out of my garage this morning and car idled very rough for about 5 seconds. CEL flased for 5 seconds too. Gave a little gas and and cel light went off and engine ran normally to work. What could have this been? Any one? thanks
 
Old Jan 8, 2008 | 12:56 PM
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Default RE: rough idle at stert up....

bump
 
Old Jan 8, 2008 | 09:25 PM
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Default RE: rough idle at stert up....

i'd scan for misfire codes. it sounds like you're experiencing bad coilpack(s).
 
Old Jan 8, 2008 | 09:29 PM
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Default RE: rough idle at stert up....

yep, sounds like it could be a bad coil pack. has the car ran fine since? if it runs fine now then the car fixed itself, if you experience more flashing cels in the future then that will be your first place to look.
 
Old Jan 9, 2008 | 12:11 AM
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Default RE: rough idle at stert up....

Year, model, miles?!? Color? lolz
 
Old Jan 9, 2008 | 11:53 AM
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Default RE: rough idle at stert up....

2003 A4 1.8TQ
 
Old Jan 9, 2008 | 12:21 PM
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Default RE: rough idle at stert up....

has the car ran fine since the flashing CEL turned off?
 
Old Jan 9, 2008 | 01:52 PM
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Default RE: rough idle at stert up....

yep it's run fine since...
 
Old Jan 9, 2008 | 02:01 PM
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Default RE: rough idle at stert up....

How many miles? This is ur defining moment...

If over 70k I would go ahead and change all the coil packs and plugs..if they haven't totally gone out yet, that was a sign that they will soon, or one of them probably. And you can rest assured that when one goes out, they all quickly follow.
 
Old Jan 9, 2008 | 02:07 PM
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Default RE: rough idle at startup....

coolant temp sensor giving bogus readings so could be that that's bad or thermostat or both?
 



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