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Thread: truck wants to turn off

  1. #1
    I got a problem with my truck. When i'm at a a light waiting or in a drive thru, my truck seems like it wants to turn off. Sometimes it does. The spark plugs are good. What can the problem be? There are no trouble codes with this problem. The truck is a 2003 silverado 5.3. Also i have these 2 codes; DTC P0102 Mass Air Flow (MAF) Sensor Circuit Low Frequency, and DTC P0113 Intake Air Temperature (IAT) Sensor Circuit High Voltage. How can I fix them? thanks
    03' Silverado RCSB H/C 5.3, 4L80,76mm KBracing Kit
    13' Sierra Denali 2500HD CCSB 4x4

  2. #2
    Join Date
    Jan 2005
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    Humble/Houston TX
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    clean your MAF with some electrical contact cleaner and make sure you have a good connection on the plug. the cleaner should be preatty cheap. clear the codes and problem should be fixed.

    you didnt descreen the MAF did you?

    old mod list: H/C/I/N/E/G 408
    new mod list: 5.3, gears/posi, mufler and tune : (

  3. #3
    Join Date
    Aug 2005
    Posts
    383
    [
    Both those sensors are in the MAF. With both coding I would suspect the wiring to the MAF or plug. Check the plug and wiring to it. Recently cleaned the engine?

    03 Chevy ECSB, Z71, 6.0L(LQ4), Maggie @ 9PSI, 4l80E, PI Vig 2800, Detroit True-Trac, 4.10, 90mm LS2 TB, Meth Injection, HSW Dry N20, LPE GT7 Cam, 918 springs, Dynatech LT's, Hi Flow cats, custom stainless exhaust, DMH cutouts, DJM Suspension Drop, E-Fans, AirAid, HPT 2Bar SD Tuned, 11.68 @ 114.2

  4. #4
    No, the maf is not descreened. Would a maf from a 2001 tahoe or a 2002 silverado fit my truck? And instead of cleaning it can I just trade maf's to see what happens?
    03' Silverado RCSB H/C 5.3, 4L80,76mm KBracing Kit
    13' Sierra Denali 2500HD CCSB 4x4

  5. #5
    Join Date
    Jan 2005
    Location
    Humble/Houston TX
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    sure will. let us know

    old mod list: H/C/I/N/E/G 408
    new mod list: 5.3, gears/posi, mufler and tune : (

  6. #6
    It will probably take a couple of days but i'll let you know. Any idea as to the problem to the other question? The truck wants to turn of when i'm stopped?
    03' Silverado RCSB H/C 5.3, 4L80,76mm KBracing Kit
    13' Sierra Denali 2500HD CCSB 4x4

  7. #7
    Join Date
    Apr 2005
    Posts
    4,229
    <div class='quotetop'>QUOTE(graysilverado5.3 &#064; Aug 10 2006, 01&#58;01 PM) [snapback]60730[/snapback]</div>
    It will probably take a couple of days but i&#39;ll let you know. Any idea as to the problem to the other question? The truck wants to turn of when i&#39;m stopped?
    [/b]
    I think they are telling you it is all related.
    Gone, but not forgotten!

  8. #8
    Last night I went to check the plug, and it was lose. I just pulled it off the sensor. I put it back the way its supposed to be, and the codes weren&#39;t their anymore , but the problem of the truck wanting to turn off is still there Any ideas as to what it could be?
    03' Silverado RCSB H/C 5.3, 4L80,76mm KBracing Kit
    13' Sierra Denali 2500HD CCSB 4x4

  9. #9
    Join Date
    Jan 2005
    Location
    Humble/Houston TX
    Posts
    2,586
    make sure all connections behind the MAF are tight. unmetered air could make it run funny. how is it trying to turn off? like surging, idling low or what? how many miles on the truck? did you try cleaning the MAF?

    old mod list: H/C/I/N/E/G 408
    new mod list: 5.3, gears/posi, mufler and tune : (

  10. #10
    It feels like when the battery is low and there isn&#39;t enough power to keep it on. Its a new battery and alternator, i tried a different battery and it did the same. Its like on big surge once in a while and then little surges. The truck has 14,000 miles. I&#39;ll go buy the cleaner later, and try if that works. Do i have to remove the MAF sensor to clean it? I a volant intake and its a B**** to put it back on.
    03' Silverado RCSB H/C 5.3, 4L80,76mm KBracing Kit
    13' Sierra Denali 2500HD CCSB 4x4

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