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1992 silverado

824 views 1 reply 2 participants last post by  justthatoneguy 
#1 ·
hello
i just purchased a 2500 silverado 5.7, it runs rough when stopped at traffic signals and pings( rattling engine sounds) when accerating. what should i check? also it only get 10 mpg is that average for this model truck?
thanks for any suggestions
larry
 
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