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Lost mpgs

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Old Mar 8, 2012 | 10:52 AM
  #1  
stewart1217's Avatar
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Default Lost mpgs

cleaned my throttle body now I am getting 2 mpg less then I was, a buddy of mine told me I have to have the dealership reset my computer. Anybody know anything about this
 
Old Mar 8, 2012 | 01:34 PM
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What year truck, engine?
 
Old Mar 9, 2012 | 08:29 AM
  #3  
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06 silverado 4x4 5.3 just had rear drum brakes put on right brfore this problem camr up taking it to shop and to have them readjusted to see if that could be the problem
 
Old Mar 11, 2012 | 08:53 AM
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Did you just spray it while it was still bolted on? It is much better to take it off and clean all of it fron to back, even the IAC valve, which can get gunky and make the motor run lean.
 
Old Mar 12, 2012 | 12:40 PM
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I removed it and cleaned the MAF also don't know what the IAC valve is but if you tell me I will clean it
 
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