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Thread: Whistle while you work

  1. #1
    Join Date
    Jul 2002
    Location
    Grapevine, TX
    Age
    95
    Posts
    2,236

    Whistle while you work

    My MM is a whistling fool--when the engine is cold---in the 50s--if you rev up to 2500 +/- 50 rpm, it has a clear whistle for a split second--as the car warms up ???????? It's been doing it for about a month---sprayed starter fluid around all joints in the intake system with no change in rpm--installed new fan and motor--still there. acceleration is smooth--no hesitation at any rpm---pulls hard with no ping. , Maury
    2003 MM 300B Black
    Born 11/12/02 Adopted 3/29/03
    "SHADOW"
    Hood Ornament

  2. #2
    Join Date
    Dec 2009
    Location
    o fallon, mo
    Age
    44
    Posts
    324
    idler ? , thats what mine was doing only when its cold once the car gets warm it stops .
    Built 08/19/2002
    #3775 of 7838
    #3774 of 7093 in black

  3. #3
    Join Date
    Mar 2008
    Location
    Next door to my neighbor
    Age
    50
    Posts
    20,353
    I have had that same whistle in the winter months for the last two years. I just replaced all the bearings in the idlers and the tensioner at a cost of $9 each last week and all is whisper quiet now.

    Bearing #6203 for all.
    SOLD 12/31/2021

    Cobra short block / ProCharger F1-A / Cog drive upgrade / Manley valves / Brian Tooley Racing valve springs / 80# inj. / -8 fuel line / -6 return / Aeromotive 340 pumps and regulator / 2012 GT500 TR6060 six speed / twin disc clutch / Driveshaft Shop GT500 upgraded CV joint shaft / BA5000 blow thru MAF/ 4.10's / Ford Racing 31 spline set up and Girdle / Metco D.S. safety loop / Stainless Works headers, cats, and everything else out back / ClassGlass hood / Bob's hood strut mod / Hurst line lock / Metco control arms / Addco front and rear sway bars / Monroe severe duty shocks all around / Race concepts rotors / Badgeless grille / 35% tint / FBM's interior LED kit and ambient lighting kit / Pioneer FB700 deck / kenwood speaker 4 Ch. / Rockford Fosgate 10" sub and amp / Kicker 6 X 8's all around / back up cam / bluetooth / Pioneer Xm / 704 RWHP 603 RWTQ tuned by Mo's Speedshop.

  4. #4
    Join Date
    Jul 2002
    Location
    Grapevine, TX
    Age
    95
    Posts
    2,236

    Thanks for the quick replys

    I'll put this on my priority to-do list --good to know it's not in the vacuum system--have appointment for some free dyno runs and I didn't want to have a lean engine show up, Maury
    2003 MM 300B Black
    Born 11/12/02 Adopted 3/29/03
    "SHADOW"
    Hood Ornament

  5. #5
    Join Date
    Feb 2004
    Location
    Northern Virginia
    Posts
    20,574
    Quote Originally Posted by cruzer View Post
    My MM is a whistling fool--when the engine is cold---in the 50s--if you rev up to 2500 +/- 50 rpm, it has a clear whistle for a split second--as the car warms up ???????? It's been doing it for about a month---sprayed starter fluid around all joints in the intake system with no change in rpm--installed new fan and motor--still there. acceleration is smooth--no hesitation at any rpm---pulls hard with no ping. , Maury
    Sounds like the beginnings of the idler pulley problem. Suggest that you get it looked at/taken care of before it causes you problems out on the highway. Mine did "faux supercharger whistle" for couple of months and finally "let go" on the way home from work. Fortunately, I was able to get into a pull-off and call a tow company. I procrastinated just a bit too long.
    Bluerauder
    '03 MM 300B
    #67 of 328
    Dark Blue Pearl with Light Flint interior(1 of 215)




    Black Pearl "Aarrrrr Type"
    '12 Taurus SHO 3.5 L Ecoboost V6 24V DOHC DI Twin Turbo
    (365 HP, 350 TQ)
    #318 of 478
    Tuxedo Black Metallic with Charcoal Black Leather interior (1 of 415)

    Member Capital Area Marauders (CAM)
    since April '04


    Bluerauder's Garage -- Pics and Other Info

    Sixteen (16) years of CAM Meets, Regional, and Marauderville MM Event History & Upcoming (in RED) Events is Here

  6. #6
    Join Date
    Feb 2004
    Location
    St Clair Shores, Michigan
    Age
    58
    Posts
    1,101
    How many miles does the idler and tensioner last? What was your mileage when you replaced either one.
    2012 Jeep Grand Cherokee Laredo-White
    2012 Jeep Grand Cherokee Laredo-Silver
    2011 Ford Fusion SE

    Retired 2003 Mercury Marauder/Trilogy 054
    Retired 2004. 13.00 on Nitrous safely tuned by Alt Auto.

  7. #7
    Join Date
    Feb 2004
    Location
    Northern Virginia
    Posts
    20,574
    Quote Originally Posted by jstevens View Post
    How many miles does the idler and tensioner last? What was your mileage when you replaced either one.
    My idler pulley went out at about 70,000 miles.
    Bluerauder
    '03 MM 300B
    #67 of 328
    Dark Blue Pearl with Light Flint interior(1 of 215)




    Black Pearl "Aarrrrr Type"
    '12 Taurus SHO 3.5 L Ecoboost V6 24V DOHC DI Twin Turbo
    (365 HP, 350 TQ)
    #318 of 478
    Tuxedo Black Metallic with Charcoal Black Leather interior (1 of 415)

    Member Capital Area Marauders (CAM)
    since April '04


    Bluerauder's Garage -- Pics and Other Info

    Sixteen (16) years of CAM Meets, Regional, and Marauderville MM Event History & Upcoming (in RED) Events is Here

  8. #8
    Join Date
    Mar 2008
    Location
    Next door to my neighbor
    Age
    50
    Posts
    20,353
    I kept the idlers and tensioner and replaced the bearings at 77,000. But it has made cold weather noise since about 50,000.
    SOLD 12/31/2021

    Cobra short block / ProCharger F1-A / Cog drive upgrade / Manley valves / Brian Tooley Racing valve springs / 80# inj. / -8 fuel line / -6 return / Aeromotive 340 pumps and regulator / 2012 GT500 TR6060 six speed / twin disc clutch / Driveshaft Shop GT500 upgraded CV joint shaft / BA5000 blow thru MAF/ 4.10's / Ford Racing 31 spline set up and Girdle / Metco D.S. safety loop / Stainless Works headers, cats, and everything else out back / ClassGlass hood / Bob's hood strut mod / Hurst line lock / Metco control arms / Addco front and rear sway bars / Monroe severe duty shocks all around / Race concepts rotors / Badgeless grille / 35% tint / FBM's interior LED kit and ambient lighting kit / Pioneer FB700 deck / kenwood speaker 4 Ch. / Rockford Fosgate 10" sub and amp / Kicker 6 X 8's all around / back up cam / bluetooth / Pioneer Xm / 704 RWHP 603 RWTQ tuned by Mo's Speedshop.

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