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cody 12
New User
Jul 6, 2010, 9:52 PM
Post #1 of 2
(1142 views)
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1980 dodge idle
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i have a 1980 dodge pick up truck it has the 5.9 engine in it. I have no idea what is wrong with the idle, it will do ok when you drive but when you stop it will idle so rough that it sounds like the engine is going to stall. and i changed the spark plugs, the spark plug wires,the cap and rotor. it also sounds like one side is running harder then the other side.
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Hammer Time
Ultimate Carjunky
/ Moderator
Jul 7, 2010, 2:42 AM
Post #2 of 2
(1134 views)
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Re: 1980 dodge idle
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The first thing I would do is to remove the EGR valve and make sure it doesn't have a piece of carbon stuck in it holding it open.
If that is OK. you may have a bad IAC ( idle air control) but try cleaning the throttle body first. Remove the intake snorkel, have someone hold the throttle wide open for you and scrub the back side of the throttle plate and surrounding bore with an old tooth brush and some carb cleaner. Be sure to spray some into the small holes next to the throttle plate. That should help stabilize the idle. If it still has a problem, replace the IAC.
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