98 f150 help
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98 f150 help
hey. i bought a 98 f150 4.6L that was blown up, so i put a new engine in it. and now i need some help. it starts right up and runs perfectly, but as soon as i hit the gas it stalls, but if i keep playing with the throttle (pushing it down, letting it up, pushing it down, etc.) then after a few seconds it runs perfect again at a higher rpm. so it runs perfect at idle and higher rpms, and no codes come up, i've looked at everything i can think of and i cant figure it out. lots of fuel pressure, new fuel filter... i dont know what else it could be. does anybody have any idea? thanks
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i just did that and nothing changed. i was talking to someone who told me the throttle position sensor could be causing it so am going to try that because i think i have one here. if it doesn't fix it, do you have any other ideas of what it may be?... also, the 4x4 wont work, its manual (on the floor) but i cant get it to move, is there a safety lock or something that could be causing this? i wouldn't think it could seize becuase it goes right into the transfer case doesn't it?
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i found out its not the throttle position sensor. but i used brake clean on the MAF sensor becuase someone told me to clean it, and i think it might of helped it out, im going to clean it better tomorrow and see. now i can get it to rev up easier, especially in neutral, but once i put it in gear it still wants to stall. but once im going i can let it rev right down and hit the throttle and it picks up perfectly.
and the 4x4 i guess i will leave it until i can drive the truck for a bit and see if i can get it to work
and the 4x4 i guess i will leave it until i can drive the truck for a bit and see if i can get it to work
