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Old 09-22-2012, 10:40 AM   #114 (permalink)
ron
Master EcoModder
 
Join Date: Nov 2011
Location: slo county ca.
Posts: 277

double eagles - '99 Dodge ram slt
Team Cummins
90 day: 19.48 mpg (US)
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Do you have a rough Idle or rough running at speed? If its idle you can use a squirt gun full of water to spray all the vacuum hoses on at a time that should show up any leaks until the water is sucked in, then it will go back to rough idle. For rough at speed, it could be the distributor I would suspect the dist shaft bushing ,test it by removing the cap and grab the rotor and see if it moves or wobbles . just a guess
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