I have a '96 F150 4x4 with a 4.9 six. Would low fuel pressure cause the injectors to become noisy at above 2500 rpm? Is there any other fuel pump in the system besides the in-tank pump? Thanks for any response.....

Jim

 

only fuel pumps are in your tank or tanks.

i think that at 2500 rpm the whole engine is making a lot of noise!