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    2010 Tahoe/Erratic idle (no codes detected)

    No not carb cleaner! I used MAF cleaner. I figure I would have a code or engine check light on if the MAF was not functioning. I do not monitor the fuel trims and no I didn't check the coolant sensor. I didn't even think about checking those areas, but I will look into now. there is 179k miles...
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    2010 Tahoe/Erratic idle (no codes detected)

    I agree it can get expensive throwing parts it for sure. How accurate is the scanner if there are no Engine check light on? I'm a bit confused about that because scanner will show codes, but I don't know if I should start replacing parts based off that and I show codes on all 02 sensors witch I...
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    2010 Tahoe/Erratic idle (no codes detected)

    The truck is turned off while using smoke. The smoke gets pushed through the system using a smoke machine and if there are any openings down the line the smoke will seep through.
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    2010 Tahoe/Erratic idle (no codes detected)

    Thanks for your response. I figured putting smoke through the vacuum system would show if the intake is leaking, plus I did spray the base of the intake manifold, and everything is fine. I'm planning to replace all 02 sensors as soon as they come in. Crazy meaning.. RMP's jump to about 1500...
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    2010 Tahoe/Erratic idle (no codes detected)

    Thanks for the response. I forgot the mention in my original post that I did clean the MAF and intake. For my truck to run that bad I figured the engine check light would go on. I'm new the scanner world so I don't know how accurate the scanner is when the truck isn't throwing any codes. Should...
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    2010 Tahoe/Erratic idle (no codes detected)

    I have a 2010 Tahoe LT with 179xxxx miles that I purchased 3 month ago. My idle is erratic and sometimes stalls when I'm at a stop. It drives fine when I'm on the gas peddle driving it's just when I'm at a stop it goes crazy and sometimes stalls out. I will even put it in neutral while driving...

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