Hey guys,
Im new to this forum so im not sure if this is the right section. Anyway a friend of mine has an 2007 Expedition with a 5.4l, his engine blew and had it replaced by some mechanic but ever since the car has never ran right. It seems to idle fine on a cold start but after a few minutes it begins to chug or feel like its missing. There are no codes. When trying to drive it it has no power if you were to drive it normal. however it will get up to speed if you granny the throttle up. if you try to drive normal it also makes strange sounds like a a rattle or something and at that point its very very rough. one thing to note is that the intake was replaced from a junk yard and the fuel rail has a sensor on it that the truck dose not have a connector for. This leads me to believe its the wrong fuel rail. ive found fuel rails online without that sensor provision and also come with a shrader valve which would explain why theres no check engine light. so my thoughts are the fuel rail and injectors are wrong.
any help in the right direction would be much appreciated. Im at my wits end with this thing.
Im new to this forum so im not sure if this is the right section. Anyway a friend of mine has an 2007 Expedition with a 5.4l, his engine blew and had it replaced by some mechanic but ever since the car has never ran right. It seems to idle fine on a cold start but after a few minutes it begins to chug or feel like its missing. There are no codes. When trying to drive it it has no power if you were to drive it normal. however it will get up to speed if you granny the throttle up. if you try to drive normal it also makes strange sounds like a a rattle or something and at that point its very very rough. one thing to note is that the intake was replaced from a junk yard and the fuel rail has a sensor on it that the truck dose not have a connector for. This leads me to believe its the wrong fuel rail. ive found fuel rails online without that sensor provision and also come with a shrader valve which would explain why theres no check engine light. so my thoughts are the fuel rail and injectors are wrong.
any help in the right direction would be much appreciated. Im at my wits end with this thing.