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SportTrac Discussion
Engine & Drivetrain
2003 Sport Trac won't idle after starting
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<blockquote data-quote="Vic Sorlie" data-source="post: 1013984" data-attributes="member: 69241"><p>How many miles on your Trac? I think most here with Gen1 experience will tell you to clean the IAC mechanism, for which there is guidance in Projects>Maintenance section of this site. As well as that you should start at the air box and work your way "up." Is engine air filter in great shape? If not, replace it. Next up is the MAF (mass airflow sensor) in the intake tube between air box and the throttle body. Clean it if it's dirty, but there's specific cleaner for that. While you're working on the IAC, clean the throttle body and plate. Replace the PCV valve. How are your spark plugs? Pull one or two from driver's side bank and examine. How many miles on your fuel filter? You're going to see a difference after the underhood stuff above, but if engine's still not running right you'll want to check for fuel supply issue.</p></blockquote><p></p>
[QUOTE="Vic Sorlie, post: 1013984, member: 69241"] How many miles on your Trac? I think most here with Gen1 experience will tell you to clean the IAC mechanism, for which there is guidance in Projects>Maintenance section of this site. As well as that you should start at the air box and work your way "up." Is engine air filter in great shape? If not, replace it. Next up is the MAF (mass airflow sensor) in the intake tube between air box and the throttle body. Clean it if it's dirty, but there's specific cleaner for that. While you're working on the IAC, clean the throttle body and plate. Replace the PCV valve. How are your spark plugs? Pull one or two from driver's side bank and examine. How many miles on your fuel filter? You're going to see a difference after the underhood stuff above, but if engine's still not running right you'll want to check for fuel supply issue. [/QUOTE]
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SportTrac Discussion
Engine & Drivetrain
2003 Sport Trac won't idle after starting
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