2004 Ford F-150 Heritage Questions

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I have a 04 ford f150 heritage xl automatic. Whenever I'm driving when first started up and come to a stop or low in rpms it makes a weird rattling noise coming from under the truck around the transmission however the...
I have had this problem for a while i have repaced the wires and plugs, needed it. But didnt fix problem at all. what happens is i will be driving and have to stop for something car, light or such. when i do it starts...
Its been checked with smoke and nothing. It runs great but when im on the hwy for awhile and push the peddle to the floor it just goes flat nothing no power. I changed the fuel filter, plugs and pcv hose it had a hole...
Reset and it comes back with in 15 to 20 miles. It was 1 and 2 now just 2.
Im not sure were to go with it now? The truck should run bad but it runs great. Ive reset the codes and any place from 15 to 100 miles I get the check eng lite again with the same codes P0171,P0174 lean bank 1 and 2.
TRUCK RUNS ROUGH AND THE TRUCK SHUTS OFF. SOMETIME IT MISSFIRES AND HAS LOW POWER. ALRIGHT REPLACED THE MAF SENSOR.
like to know where they are front or back /passenger side or driver side when you are sitting in it.the codes are po171 and po174 both are system too lean bank 1 and bank 2 which ones are they and where are they locat...
Replaced the fuel pump, replaced the relay, and checked the fuses and the fuel pump shut off switch everything is good, but the fuel pump is still not coming on when the key is turned on.
i have poor take off and shudder after shifts.
evertime its cold outside my check engine light comes on and the scanner reads system too lean bank 2 ,evap system not ready not vacuum leaks in the engine changed gas cap
can i take a stock clutch and replace it with a bigger one. example 10in to 11in
doesnt seem to want to go into first gear an first. Once I put into second and then into first in goes in better