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Over heating F550 with the plow mounted "resolved"

Discussion in 'Western Plows Discussion' started by mishnick, Nov 11, 2012.

  1. mishnick

    mishnick 2000 Club Member
    Messages: 2,243

    I have finally found an effective solution for my overheating problem on my Ford F550 :yow!:. I have had a Wide-out mounted for two winters now and every time I drive from my home to the city on my plow route it would over heat at highway speeds. I have tried lowering the plow so the air could flow through, I have tried using a scoop to redirect the air as seen on some photos here, I even pulled my radiator out and found the previous owner had stuck a piece of cardboard between the rad and intercooler. Even after taking that out it still overheated on the highway but only when the plow was on. Funny thing was it never overheated in the summer on the hotetst days pulling a heavy loaded trailer!

    But while having some serious engine work done by the Ford dealer (probably caused by repeated overheating) I asked the service rep it he had any ideas. He looked up my VIN and told me I could upgrade to a "plow kit fan clutch". He explained that the original fan was not activated by actual engine temperature but rather by the actual fan clutch temp.

    A few days ago I spent the $600 Cdn and bought the plow kit fan clutch. Since then I haven't had to pull over on the highway to let the clutch warm up and engadge like I used to. The temp gauge is as solid as a rock right in the middle range and I am as happy as a pig in poop. Thumbs Up

    The repair I had done was about $6000 so if I never have to go through that again the $600 and the three hours it took me to install it myself will be well worth the investment.

    If anyone wants more details let me know, I can provide photos or part numbers as requested.
     
  2. oldmankent

    oldmankent PlowSite.com Addict
    Messages: 1,318

    So, you were running a truck that was not setup from the factory to push a plow. I.E. no factory plow prep? $6k in engine work!? What was done? oil change and tire rotation:rolleyes:
     
  3. alldayrj

    alldayrj PlowSite.com Addict
    Messages: 1,097

    Guessing its a 6.0 with head gaskets a hpop and egr
     
  4. dfd9

    dfd9 PlowSite.com Addict
    Messages: 1,475

    Interesting, did your mentor never mention plow prep packages to you?

    This is a known problem and has been discussed here before. I noticed it first back in '05 on my 350.
     
  5. DieselSlug

    DieselSlug PlowSite.com Addict
    Messages: 1,054

    My 6.5 Diesel would get warm while pulling hills. I took my stock fan clutch off and changed the length of the element in the end of the clutch. Helped the clutch engauge at an earlier temperature. But since then ive traded the clutch in for a H/D clutch and bigger Duramax platic fan blade. That helped a TON!
     
  6. mishnick

    mishnick 2000 Club Member
    Messages: 2,243

    When you buy a used truck unfortunately you don't get to "special order" with the plow package. I bought it as a plow service truck, then upgraded it to use just for moving & testing plows. Then decided since its equipped why not use it for plowing. Never was intended for that job it just kinda happened. Lots of people around here buy whatever the can get at the auction and then put a plow on it. It's more important to find a truck that will take a plow than to find one with a plow package. Anyway it was easy enough to upgrade.

    The $6000 repair was what I will call an injector oil pump. This engine's injectors are shuttled by engine oil but not from lubrication pump pressure. At the back, under the turbo there is a second pump that puts out about 600 psi which is used to push the injectors. Apparently it is common for some fitting to break leaking away the oil pressure which makes it difficult to get started especially when the engine is hot and the oil is thin. Also makes the engine run ruff when warm and idling. In my case the pump itself was toast even though it only has 40,000 Ks on it. But it was previously a bail mover so I suspect it has hundreds of hours of idling in it. Coincidentally they did do an oil change, check the tire pressure and detail it too.

    As for my mentor, he was an HET not a plow specialist, when he was alive most snow plows were horse drawn or steam driven. There were no plow packages back then... and further to this, the new trucks with plow packages, especially the GMs are only electrical changes which cause more trouble than good. Yes yes they come with a heavier front end and two batteries but you can get that without a plow package. Bottom line is only people who buy or lease brand new trucks get the option of ordering them with plow packages. In my neck of the woods very few people put plows on new trucks so it is a moot point,

    This issue has been discussed here before, I agree, and it will be discussed again. Old people go and new people come. Same issues will be discussed by those to whom the issue is new. If you already know all about this then no one is forcing you to participate in the discussion.
     
    Last edited: Nov 12, 2012
  7. dfd9

    dfd9 PlowSite.com Addict
    Messages: 1,475

    $6K for an high pressure oil pump replacement?

    Please tell you had injector work done as well.
     
  8. diesel dave 04

    diesel dave 04 Senior Member
    Messages: 155

    just for clearafacation that is the (HPOP) high pressure oil pump and the fitting is called the SCT fitting it is replaced by a one piece fitting they found the quick cupple fittings would leek or even pop apart then you were dead in the water
     
  9. mishnick

    mishnick 2000 Club Member
    Messages: 2,243

    That sounds like what they described. Unfortunately they pulled this apart three times. They didnt think it was the pump initially because of the low milage. They changed that fitting one time and did something else the second time. Finally they said it had to be the pump. Also includede in that bill was the $600 for the new clutch fan, just the part, no installation.
     
  10. dfd9

    dfd9 PlowSite.com Addict
    Messages: 1,475

    $1000 is pretty close for a HP pump.

    The STC can go bad as well. I did have that happen one winter night right after pulling out onto the road. I was some kinda upset.

    diesel dave, the pumps and the STC fittings have a tendency to fail. 2 different things, all part of the same crappy design.