Ford F-150 Heritage Questions

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Replaced bad starter relay 2 months ago, then neutral position sensor 1 week ago. All was well for 4 days, now problem is back. If I wait 2 - 4 hours, truck will start. But now we are having 110+ weather, so problem is going to get worse?
Idles too low and some times it dies with AC on is there something more then the air mass sensor ?
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 there is no slippage in any gears. Any ideas what it could be?
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 to sputter like it wants to die. recently i took it from iowa to fla only problem was that and when wheel is turned sharp it cuts off and will not start untill i turn wheel back. am a little stuck on this, was thinking the idle needs fixed but things have changed on these newer cars. please help.
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 in it. I reset it and the light comes back in about 10 miles or so. Code 174 always comes on first to lean bank 2. Im lost help.
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.
or major repair?
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 located.front back left or right when sitting inside
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
got truck checked out,replaced pcv hose passenger side, 3 weeks later throws codes again,any suggestions?
i had a person change my flywheel. when i went to get the vehicle the guy told me the message center read trans fault it was not like this before when i took it to him . i got in truck cranked it up and realized what he was talking bout .the message center read trans fault .he told me to drive it maybe it was because he had the battery unpluged for a long period of time. idrove the truck down the road and it wasnt shifting right so i took it back. the next day he said he found 2 fuses blown that were in relation to the transmission . it still ran the same but was shifting a little better . now when i crank the truck at first its fine but when i put in drive and get to 1500 rpms it tugs and the o/d light flashes and the wrench symbol appears and it runs like the o/d is off .ive had the truck scanned it read off trottle possision sensor/ #1&2 oxygen sensor/ speed sensor. ive replaced TPS & speed sensor on trans . could there be a fuse or relay blown or what could the problem be .
license plate lights are out. Fuse?,which one? How do you replace the license plate lights if they're burnt out?
I drove my truck to Missouri and had now problems. It just went over 26,000 miles and now the check engine light soon has been activated.
Last week it wouldn't start my mechanic said I needed a new battery. Then drove it 600 miles over 2 days. Didn't start it for a few days and now it will not crank over. Supercab, XLT 139".
I purchased 2004 F150 Heritage and have the po 174 code. It says system too lean bank 2. I don't know what that means and would like to get some advice as to what to be checking so troubleshoot the right areas first.

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