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1977 gmc siarra grande

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Old 04-30-2012, 10:36 AM
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Exclamation 1977 gmc siarra grande HELP ...rookie

i lose power and fuel when going up hills. truck runns good on flat land .pleace help
 

Last edited by [email protected]; 04-30-2012 at 11:07 AM. Reason: help .... truck rookie
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