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I have a 4
1990 GMC TRUCK
Hi I have a 4.3 small truck and the motor races when started I changed the carb base gasket, carb idel up sol, computer temp sender, even blocked the egr valve any ides.
Sunday, December 9th, 2012 AT 2:43 PM
Scan for codes and check fuel pressure first. Check for a vacuum leak
Sunday, December 9th, 2012 AT 3:58 PM
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