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Rough Idle / Poor Performance in Hot Weather?
I'm having the same exact problem with my 2005 F-150 5.4, my engine was rebuilt last year so I don't think that is the problem. Brand new Cats x 4. Outside temp 85 and up causes the engine to run rough. Today the temperature is over 90, Drove 30 minutes, before getting home, truck loses power...- James Abraham
- Post #20
- Forum: Engine & Performance
