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Old 07-14-2009, 11:12 AM   #1
Free88
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Join Date: Jan 2004
Location: Northwestern Ontario Canada
Posts: 359
1990 Chevy 4x4 low speed miss

Truck starts good but idles a little rough for about a minute than smooths out. Runs rough until about 40 mph. Over 40 it runs well with no roughness at all. Had the throttle body gasket changed and it made no difference. Does not idle fast.
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1997 Blazer S10 4x4
1990 Chevy Silverado K1500 Extended long box
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