james1978
james 1978
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hello everyone new guy with problems 89 f-150 5.8ltr. after engine is warm in park idle drops down so low almost dies then something happens and idle goes back to normal. back ground on engine: new overhaul in 2005 .060 over pistons, mild cam, long tube headers, all new inj. new pumps in tanks and new pump on frame. engine runs real strong. problem just occured last few days changed fuel filter still no help no check engine light on no codes when using scan tool. any suggestions would be gladly appreciated.