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05+ 6.0L diesel plow prep package fan?

Discussion in 'Ford Trucks' started by Ramairfreak98ss, Jan 29, 2009.

  1. Ramairfreak98ss

    Ramairfreak98ss PlowSite.com Addict
    Messages: 1,931

    I have two 06 F350 diesels.. one HAS the plow prep package, one im not sure.

    The new 06 i just got i will "guess" it does not have the plow prep radiator cooling "special" fan clutch they say thats $85 when you buy the truck new.

    My 06 that has the package, ive never heard the cooling fan spin loud, like big garbage mack truck loud when accelerating. Ive heard the new 06 do it a couple times in cooler temps just towing a trailer already.

    Yesterday with the boss plow on it driving 55mph, the coolant temp gauge kept creeping up, eventually hit H and it said Engine overheating on the dash. I lowered the plow, hardly came off of H, raised it way up, stayed on H.

    Pull over and let it idle, after 30 seconds, still doesnt move off HOT, you hear the fan kick up speed, now its louder and suddenly the coolant gauge comes way down pretty fast into normal zone, after sitting for 60 seconds, the truck is back to norm temps...

    Could the fan clutch be broken, worn out or faulty or is this an electronic issue or anything to do with the non-plow prep package fan? Im not going to be able to let anyone else drive it for plowing or towing until i figure it out. No engine lights ever came on though.
  2. Mebes

    Mebes Senior Member
    Messages: 451

    I remember reading this somewhere before.
    I did a quick search and found the beginning of the TSB.

    "Some 2005-2006 F-Super Duty vehicles, that are NOT equipped with the factory snow plow package, may exhibit an engine overheat condition if a snow plow is installed on the vehicle. The condition typically will occur during normal highway driving. This is due to the snow plow blade disrupting airflow to the engine, causing the cooling fan to stop turning or to spin in reverse."

    Hope this helps.
  3. daninline

    daninline Senior Member
    Messages: 430

    I don't have the plow prep on a 2004 F250 diesel and I drove 40 miles with the plow up with out a problem I hope this info helps ya
  4. Mebes

    Mebes Senior Member
    Messages: 451

    I do not have the plow prep in my 2004 F350 6.0 Diesel, and it does not have this problem either.
    Since the TSB did not include 2004 something must have changed in 2005.
    I know the frame did because I had to find an early 2004 so I could transfer the mount and wiring off my old 2001.
  5. Ramairfreak98ss

    Ramairfreak98ss PlowSite.com Addict
    Messages: 1,931

    thanks guys.. how would the fan EVER spin in reverse though? i mean as soon as you start a bone cold 6.0L diesel, the fan is spinning while idling slowly, i mean if i stuck a 2x4 in there, the belt would rip the Water pump pulley off or shoot the 2x4 out wouldnt it?

    Is there anyway to replace this fan clutch with a model that will work correctly?

    I also think puttinga 2.5" lift kit on the front will allow me to have some more room while driving and thus keep the plow a good 2" lower versus the height of blade in front of the radiator.
  6. Ramairfreak98ss

    Ramairfreak98ss PlowSite.com Addict
    Messages: 1,931

    ttt to the top anyone know?
  7. STEVE F 350

    STEVE F 350 Member
    Messages: 48

    The electronic fan clutch kicked in ,they do sound loud when they kick in..
  8. Ramairfreak98ss

    Ramairfreak98ss PlowSite.com Addict
    Messages: 1,931

    good to know so the powerstroke 6.0L have electric or manual clutch fans? i thought it was manual because it spins as soon as you crank the 6 liter over... most cars have electric, and you can tell, small, no belts touch them etc. Maybe i just need a different electric clutch or can the computer be re-programmed with a sct tuner or something to come on much sooner?

    The truck was ready to blow a hose or radiator and the fan was still not on that high speed! yikes
  9. Mebes

    Mebes Senior Member
    Messages: 451

    Not sure about the fan being electric on my 04, I think mine is belt driven (I will check tomorrow).
    I have seen electric fans spin backwards before.

    Even if you have a belt driven fan, it has a clutch that could fail and cause the fan to spin too slow or possibly backwards.

    The belt driven fans have a spring on the front of them that responds to heat blowing on them from the radiator, and causes them to spin faster.

    If air flow is restricted (or redirected) then the spring would not get hot enough and the fan would not run at full speed.

    They are made this way to reduce emissions and help the engine to warm up quicker maintain temperature, and to save fuel.

    I would suggest that you look under the hood and see if the fan is directly connected to a belt driven pulley on the motor. (so we can help you diagnose the problem)

    Next time it gets hot on the road, pull over and shut down the motor and then restart it.
    If you are at a dead stop then the fan should start back up in the correct direction and resume cooling.
    Electric fan or not, this would confirm that if the wind is causing your problem.

  10. wewille

    wewille Senior Member
    Messages: 311

    The fan has an electroviscis clutch. That means it is a hydraulic clutch that locks up electronically, so it is belt driven but wont lock up until pcm commands it too. If you look there is a big electrical connector on the fan shroud. I am not familiar with the plow package fan, but i can get more info tomorow possibly. All of the 6.0l have this fan clutch set up.
  11. wewille

    wewille Senior Member
    Messages: 311

    The fan clutch you need is 4c3z-8a616-sa, you can order that at your ford dealer. I do not know the difference in the fans i can research it but thats the part number for the plow package fan. There is no garauntee this will fix your problem, but you need to get the proper fan in the truck before we can do further diagnostics
    Last edited: Jan 31, 2009
  12. Ramairfreak98ss

    Ramairfreak98ss PlowSite.com Addict
    Messages: 1,931

    Great thanks! I will get to a dealer this week to find out about the plow prep clutch part, maybe that will solve it. Ill look under the hood tomorrow and find out what i can. The truck plowed for 7 hours fine and drove a while before getting real hot. Then once it was closer to 40deg out, raining, it started to do this, at 20deg it would still prob be cold enough to not affect it, either way, that fan isnt spinning fast enough to keep it cool like my other 06
  13. rafa123

    rafa123 Junior Member
    Messages: 10

    hey keep us posted i seem to have the same problem when i drive on the highway i was told that i need the heavy duty fan clutch upgrade installed
  14. I don't know about you but my 05 gmc 2500 with plow prep runs hot when road running. The plow blocks the rad starving the fan from pulling air.

    Does your truck run hot when plowing? If it is only road running I am not sure you have a problem.

    I have to run the highway with my plow almost scrapping the ground in warmer temps.

    I took mine to my mechanic for the same reason and he told me that it is pulling tons of air. He told me that it happens with different trucks depending on the body style and plow set up.

    I am by no means a mechanic but just letting you know about my case.

    Hope you find out whats wrong if anything.
  15. H2oSprayer

    H2oSprayer Junior Member
    Messages: 1

    Just wondering what you found out from the dealer. I have a 2007 F350 w/o plow prep that I would like to add a plow to.
  16. maxslights

    maxslights Member
    Messages: 38

    I have a 2004 F250 6.0L and I have been hearing the fan kick into high-speed. I was driving around at about 7:30 this evening before we had snow and I heard the fan get VERY loud. The coolant temp isn't high at all though. The gauge is reading at normal operating temp half way between H and L which is where it usually is. I was wondering if this is a fan clutch issue and do I need to order the 04 Plow Prep Package and install it.
  17. Brian Young

    Brian Young PlowSite Veteran
    Messages: 3,394

    Holy crap, I was just going to do a search today in here about this. My 05 6.0L does the same thing. I thought the tranny was going when I first heard it. I was on the thru-way (plow on) and it hit the "H" so I pulled over and it went back to normal and has never done this since. It does make the noise here and there and the temp. gauge is a hair above half way with the plow on, with the plow off it's a couple hairs (LOL) below half way. How did you make out ramair?
  18. s. donato

    s. donato Senior Member
    Messages: 314

    not 100% on this but the "gauges" on my 04-late i was told by many that they are just idiot lights. they only have 3 positions - cold - normal - hot(i also heard that you don't want it to ever get to the H.)

    Add a Scan Gauge II the PCM has the temps in it but is not displaying them well. I know my truck hit EOT 210 on my way home on the hwy after looking at a job(it was 40 degrees out). i got off the hwy and drove back roads and it didn't go much lower then 190 till i got home and let it run to cool itself down. FWIW my gauges never moved.
  19. dfd9

    dfd9 PlowSite.com Addict
    Messages: 1,475

    You'll need to get the snow plow prep clutch fan installed to solve your issues. I had to do this on my '05 and the problem disappears.
  20. Too Stroked

    Too Stroked Senior Member
    Messages: 573

    Probably a dumb question, but for those of you having overheating problems, are you running with the plow blade angled or straight? The reason I ask is that running with it angled makes a huge difference in how much air actually gets to the radiator. And of course the upgraded fan clutch makes a big difference too. All of ours have them.