2008 Yukon Rough Idle

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YukonCrazy

YukonCrazy

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I wish it would throw a code so I can concentrate on one area. I hate this guessing crap and trial/error with my wallet.

---------- Post added at 02:14 PM ---------- Previous post was at 01:30 PM ----------

I guess I can add PCV valve to the list.
 

JML07denali

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Replace wires and clean MAF and TB it's cheap and shouldn't take too long.


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YukonCrazy

YukonCrazy

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And I assume these are the correct set of wires?


ACDelco 9748RR Professional Spark Plug Wire Set
 
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YukonCrazy

YukonCrazy

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UPDATE:

Replaced spark plugs
Replaced spark plug wires
Cleaned MAF
Cleaned Throttle Body


Did all that and still idling a little rough. Not sure what to try/check next.
 

mattjones

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UPDATE:

Replaced spark plugs
Replaced spark plug wires
Cleaned MAF
Cleaned Throttle Body


Did all that and still idling a little rough. Not sure what to try/check next.

Mine was idling rough awhile back and it was still under warranty at Carmax so I took it in and they actually replaced the throttle body
 

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