Jump to content

2006 2500HD 6.0L radiator fan, clutch, shroud fit problems

tray.brown1981

Recommended Posts

tray.brown1981 Enthusiast

tray.brown1981

Posted
Posted

Hey GM Fam, so I bought my truck with Flex a Lite electronic fans already installed.  This weekend I pulled those and went back with stock fan, clutch, and shroud.  The problem I have is the fan is hitting my K&N cold air intake duct.  To "fix" this, I had to cut off a couple inches of the duct and tighten it and also had to cut a small area of the fan shroud so it would fit also to be able to use my truck to get to work this morning.  However, this duct popped away from the throttle body and the fan was rubbing on it some by the time I got to work.   Has anyone else had problems with this or something similar?  Not sure if the fan I was sent is too big or what the problem could be.  Thanks in advance for any help.

Formulabruce Enthusiast

Formulabruce

Posted
Posted

These engines live under 3k RPM's , get the original curved type air intake, use stock box, and toss something different inside the box if you really think it makes a difference.

tray.brown1981 Enthusiast

tray.brown1981

Posted
  • Author
Posted

Thanks for the replies!  I am planning on going back to OEM because just changing to the OEM fan seems to already have made a difference.  I did finally figure out the problem why it wasn't fitting though.  The previous owner had put in the electronic fans, the CAI, and a throttle body spacer!  That spacer pushed the TB out just far enough the fan was hitting!  I can find the air box easy enough but finding the duct that goes from the TB to the air box has been somewhat tricky.  Going to call my local U Pull It place and see if they have one.  Dealer's want $135 just for the duct!  Ridiculous!

 

Again thanks for the replies guys!

tray.brown1981 Enthusiast

tray.brown1981

Posted
  • Author
Posted
On 7/11/2018 at 1:25 PM, txab said:

Throw the TB spacer in the trash. No gains on this application

Yes sir, that's the plan!  Thanks!

phatrabbitzz Enthusiast

phatrabbitzz

Posted
Posted

I just replaced my clutch fan to OEM electric fans w/harness, and finally the AC works properly @ idle again. Haven't heard of someone going back to clutch fan after having electric fans. What difference are you noticing for the better?

tray.brown1981 Enthusiast

tray.brown1981

Posted
  • Author
Posted
14 hours ago, phatrabbitzz said:

I just replaced my clutch fan to OEM electric fans w/harness, and finally the AC works properly @ idle again. Haven't heard of someone going back to clutch fan after having electric fans. What difference are you noticing for the better?

I was also having a problem with my AC at idle but with the electric fans.  Shop told me it was because the motor was going out on my electric fan, which was true.  However, when I went back with the clutch fan, my compressor still wasn't working properly so I went through and looked at the electrical and found that my fuse under the hood has to be inserted a certain way for it to work correctly and now I haven't had a problem with it since.  Now to answer your question of what has been better, the answer is nothing.  Actually I lost gas mileage to the tune of about 1 mpg since I installed the clutch fan.  I was already getting only 12.2 mpg and now I am down to 11.5 mpg.  I love this truck but just don't love it for a daily driver personally.  I drive 50 miles round trip to work and home and spend $200 - $240 in gas per month depending on gas prices.

 

If anyone has any gas saving tips, I am open to suggestions.  

The only thing that I can think of that's not stock, other than the TB spacer and K&N CAI, is I have bigger tires 285's instead of the stock 245's.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,840
    Total Members
    8,960
    Most Online
    appletrav
    Newest Member
    appletrav
    Joined

  • Who's Online   1 Member, 0 Anonymous, 450 Guests (See full list)

  • Latest Articles

  • Posts

    • newdude
      2 speed transfer case optional now?

      By newdude · Posted

      This is a 1/2 ton thing ONLY.  All HDs 2020-2026 have the two speed transfer case, with Autotrac as an option.     1/2 tons 2019-2026, regular 4x4s come with a single speed case (no 4LO!), and trucks with Z71 ordered, or all Trail Boss trucks come with the 2 speed case.  2 speed case is also an option on WT, and is also standard on High Country.  
    • newdude
      Different requirements for oil filters?

      By newdude · Posted

      2013 5.3 still to this day calls for the PF48 filter.  Which as a 15psi bypass pressure.     There is a TSB, 17-NA-157 that talks about the PF-63 and PF-64 filters which have a higher bypass rating of 22psi.    TSB HERE - temp.xml   "Beginning in 2012, the oil pumps began to regulate main gallery feedback instead of pump out pressure. This means that the oil pump now does not begin to regulate until pressure is built up to the main gallery. This change reduces the amount of time it takes to provide oil to the engine bearing and lifters during extreme cold start conditions.  Main gallery feedback oil pump control systems are present on the following engine families which use Spin-on oil filters: Small Gas Engine (SGE), Large Gas Engine (LGE), High Feature (HFV6) Gen2 and Small Block Gen5 gasoline engines. These engines with the main gallery feedback oil pump control systems are factory built with an ACDelco® oil filters"   It also calls out what engines use those filters.  The gen 4 small blocks were not on that list (LMG, LC9, L9H, L92, L94, L20, L96).  Gen 5 small blocks use the higher pressure filter.          That all said...   Your 7045 Napa filter is the PF63 equivalent, with 22psi bypass.  You are already using the higher bypass pressure filter.  You CAN keep using it, you don't technically have to use it though.  
    • Grumpy Bear
      Different requirements for oil filters?

      By Grumpy Bear · Posted

      Do you know WHY the filter relief setting was increased to 22 psig?    When the new system goes into the second stage the pump volume ramps up considerably. It was found that the 15 psi filter bypass setting put the filter in bypass on a warm engine when the second stage was activated. Raising the filter bypass setting forced the filter to do what it designed to do. Filter. Preventing debris from circulating during high load, high rpm operation.    So next question is how did GM find this out? VLOM/lifter failures and a deep dive by Melling Corp.    Last question. Is it required? Look at it like this; a motor may be equipped with a rev limiter. But it only works if the set point in reached. That 22 psig setting only matters if the pressure differential across the filter media exceeds 15 psig during normal warm operation. Second stage kicks in around 3000-3500 rpm.    I can't answer your question because I don't know you and how you use the truck. But I think there is enough information here to let you decide for yourself. 😉
    • Coastie05
      give me some tips to make my truck look better

      By Coastie05 · Posted

      Go back to OEM wheels. 
    • newdude
      2020 Trailboss 6.2 replacement

      By newdude · Posted

      Probably not their first rodeo, so it should go as planned most likely.  Typically the service manager or tech doing the swap will put some seat time to shake it down after they get it all put back together.  We usually put 50-100mi before we hand them back so if something happens, its not after you get it.  A coolant leaks, oil leaks, a ground left off or loose, vibration, etc.     The new engines so far have been good?  There's been a couple that have popped out there again (the replacement engine) but most have been okay.  

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...