Like the title says when driving or sitting still it beeps like the low fuel beep but does it like 3or 4 times noyhing flashing or doesnt say what it is like low oil or whatever its annyong any idea?? I have 06 f150 with a 5.4

 

When you first turn the key to the run position does the air bag light come on for a few seconds? It sounds like a warning for a bulb being burnt out. Might not be the air bag light but could be another warning type light.

Just a guess.

 

Idk im gonna go through it and make a check list and look into it i just find it odd never heard of this before so i figure id ask check engine light is on but was told its a dirty map sensor air filter or fuel filter im going to chamge the filter

 

If the CEL is on, please post the exact numeric codes. Don't care what someone else has told you it means. It will be a "P" followed by 4 numbers.

 

Yea i had it checked but cant find what i did with the print out ill have to checked the air bag light as a precaution ill run into town and have it checked again

 

It says P0174

 

That is a lean code, it has nothing to do with the beeping.........unless they changed something.

 

I didnt change the fuel filter as i wanted to today cause the wind here was insanely bad with dust but it doesnt feel sluggish as the guy from autozone said it probably feels like but ill chamge it tommorrow the disconnect the battery cable to reset the check engine light

 

The truck is basiclly stock minus the CAI and throttle body spacer and flowmaster exhaust.i cleaned the filter and the map sensor when i first got it checked but its doing yhe beeping more frequently now so whatever it is its requiering some attention

 

Spark plugs were recently changed not long ago

 

Throw that throttle body spacer in the trash can.

You have a lean code, it's most likely a vacuum leak.

 

2006 5.4L 3v. You are your trucks worst enemy at this point. Seriously. A CAI is okay IF it's the factory type and NOT an oiled element. You don't say, so I'm guessing here. And if you went with a 3.5", your dangerously lean. Like, you better have another motor on standby lean.

Throttle body spacer, - more bad news.

Flowmaster, = You have decreased performance compared to the stock set up. If you just want to make noise, get a real muffler.

Screw the beeping, -just appreciate the fact it's still running.

 

I havent had any problems with the truck but one wiyh the way it ran because of the spark plugs once i change them its been running good the cai is one that says to use oil but i dont put any on...and what do you consider a real muffler..? This morning the wife says she was driving it and it used to do this when it was cold and it didnt get watmed up first thing in yhe morning it spits and sputters and check engine flashes for a lil bit and then iy clears up then its fine.. Maybe time for a fuel filter? Maybe new pump?

 

Before throwing parts into it, like a pump... look at the fuel pressure off the rails.

 

How do check them?