Question about 2004 Ford F150

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Whistling noise I have a 2004 f-150 supercab. problem began when truck was new and I was driving at approx. 72 mph in cold weather. I would get a loud persistent whistling noise. Reported to dealer but they could not duplicate[conditions were wrong]. Also called Ford complaint dept.Talked to dealer again this winter and they may have attempted something as now noise may occur at varying speeds in cold weather.Ford is now saying this is deemed normal and acceptable.It is not! Any solutions?

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  • donbarber Jan 04, 2009

    I have considered that since at one point the ford service manager told me he was pretty sure it had to deal with the throttle body and that he could fix it[before ford said the noise was acceptable]. I initially thought the noise was from the windshield but after talking to the manager I just cant tell.

  • Anonymous Jan 10, 2009

    mine does the same but it is at a slower speed.

  • midnightflye Jan 16, 2009

    I have the same problem with my 2004 pickup ,wich some one could fix it.

  • SWADE2 Jan 27, 2009

    MINE DOES TOO. BETWEEN 1500 AND 2100 RPMS DEPENDING ON WHAT GEAR I'M IN. SOUNDS LIKE A TEAPOT BEING TAKEN ON AND OFF THE HEAT. THINK IT MIGHT BE AN ELECTRICAL RESISTOR PROBLEM. MAYBE A BAD SPARK PLUG WIRE OR WIRING TO TRANS. NOT SURE. SOUND WHISTLES DOWN AND GOES AWAY AS RPMS DECREASE OR EXCEED 2100.

  • herlimo Feb 03, 2009

    My 04 with the 5.4L makes a high pitched whistleing or electric sounding noise when its cold. Below 14F. Happens between 1500 and 2200 rpm. Goes away with a quick hit of the accelerator. Sometimes happens when it is first started in the morning till the engine idles down. Can"t tell if it is coming from the front or the top of the engine. The colder it is outside the more often it happens.

  • Anonymous May 21, 2009

    I've also heard it's from the throttle body. Anyone able to fix it yet?

  • Anonymous Mar 24, 2014

    only when in gear.

  • Anonymous Mar 26, 2014

    engine strains to go over 30 mph and there is a whistling noise

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  • Ford Master
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Have you tried placing something over the grille area temporarily, to try & isolate it. Can you tell roughly the area it's coming from?

Posted on Jan 04, 2009

  • Mike Butler
    Mike Butler Jan 04, 2009

    We had a brand new $80,000 motorhome that experienced same thing a few years back, right at 55-60 mph. I originally thought it was windsheild because it whistled right by my ear when I was sitting in the drivers seat (I thought) .So I used wide masking tape and ran it over all the moldings around the windsheild & area that any source of wind could get in. Down the road, same noise. Pulled all tape off, covered grille and noise went away. Turned out to be a new design in the metal grille, had a flaw that the factory hadn't run into yet . The 1/8" thick metal pieces that ran across from side to side, about an inch or two apart, didn't have enough supports in between, and it was sounding like a tuning fork, when you got up to highway speed. Added some more braces between them, and problem was cured. Factory sent out a bulletin & a redesigned (same as our prototype actually) grille assembly to fix future complaints. Something for you to try or think about anyway. Look for something flimsy enough to wiggle or vibrate when driving at that speed in your grille assy, or behind it. Good Luck, keep me posted, I'm real cuious now! ha-ha.

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