Well Here we go!!!

I have a 6 month old LLY. It has the same fan noise so many are complaning about. But I listend to it from L.A. to Vegas. The only time
it stoped was on really long down hills. Going up the baker grade the Coolant temp reached 240, Trans temp 230 before I backed off.
I was towing my toy hauler. About 8000 LB. My speeds were 55 to 70 mph.
I went to the local dealer for a recall and wile I was there I asked the service writer about the fan noise and running hot. He said the fan noise
was normal.

Well feeling rather insulted after that. I wrote a letter to GM.
Well!! Today I got a call from GM. And they want me to take the truck back to the dealer. I am reluctant to do so, just Because I hate getting the run around. But I made an appointment for tommorow.

I will post what happens!!
I have been reading all the overheating threds. And it looks like all the guys are getting it figerd out. And I apreacate all the time effort from everyone. I still don't feel rite about buying a $45.000 truck and having to spend time and money on it. To make it useable!!!!

THANK YOU !!!!!
I was told the same thing " normal" on my trip from LA to PHX fan noise on the whole time, and it was hard to even have a conversation.

I will be writing GM today.

i went to mammoth last week in my new truck (lly) and the fan was on all the way there and back pulling my toy box. also the connector hose on top of motor for the intercooler blew off 7 times.i need to take it in for the hose and hopefully the fan and high temp. lets us no what they say this time...

Well Here we go!!!

....I have been reading all the overheating threds. And it looks like all the guys are getting it figerd out. And I apreacate all the time effort from everyone. I still don't feel rite about buying a $45.000 truck and having to spend time and money on it. To make it useable!!!!


then what the heck do you want???? Some cheese?

don't get me wrong, I just take exception to these types of posts. Your dealer won't be able to help you (trust me), but you can do something about it if you want (as you know from the OH reading).

then what the heck do you want???? Some cheese?

don't get me wrong, I just take exception to these types of posts. Your dealer won't be able to help you (trust me), but you can do something about it if you want.

Ouch, KB..that was harsh. He did say "Thank you" to you guys....

If I was one of the O/Her's, I'd have been a screamin meanie in GM's ear. Buying a poorly-engineered $45,000 truck just isn't right. That's not whining, that's being bent over and done from behind. I really feel for you guys.

Yes he did, I recognized that.

Nils, I apologize. When you have had enough (with the GM line), we'll get you happy with the radio again.

You would have been in trouble out here. There is relief, just nothing you will squeeze GM for.

Oh BTW, I need to know if that is a chevy?

Thanks in advance, it's for the database, almost all "perpetual fan" complaints are chevy so far.

Yes he did, I recognized that.

Nils, I apologize. When you have had enough (with the GM line), we'll get you happy with the radio again.

You would have been in trouble out here. There is relief, just nothing you will squeeze GM for.

No Worries KB.
I know how the dealer game works. I have been though a buy back a few years ago. I would rather not go through that again!!!

I know I will probably have to fix it myself. I work on cars for a living. The last thing I want to do is work on my own stuff at night.

By the way my truck is a GMC.

Thanksfor the feedback.

The good new is you don't need a fan clutch, IMO (the first thing they will get wrong)

Constant engagement shows you have an early trigger temp. FWIW, you are a classic "stack sealing" candidate.

do you have a skid plate under the transfer case? (don't confuse this for the plastic splash guard)

I still have all the skid plates on.

skid plates are confusing, they do not come with 4x. Ordered seperatley.

IAE, remove the splash guard and skid plates (if applicable). See if that provides immediate results.

I will remove them when I get it back from the dealer

Kb,

Are you seeing a trend with the overheating and the 4X4 skid plates? I am asking because I havent experianced any of the troubles, but mine is 2wd.

Kb,

Are you seeing a trend with the overheating and the 4X4 skid plates? I am asking because I havent experianced any of the troubles, but mine is 2wd.

Convincing him you don't have troubles will be your biggest obstacle.

.

I don't know of a correlation

Thanks Tx, off the meds again?

Never was on any :)

There doesn't seem to be a correlation to make or drive. Not trying to start crap just getting the positions out in the open, as in KB believes ALL of the LLY's will overheat if towing heavy, so when D Lafleur says he doesn't have the problem then somethings gotta give.

You think production line folks are skipping putting airflow pieces on some trucks? Oteo didn't seem to have his a/c condeser flap.

.

I vote for design change in fan blade / shroud.

Did you guys ever pull pieces off a cool LB7 and an O/H LLY and physically compare them? I don't think I ever read that....

Tom,

I can't seem to get an LB7 in my driveway, so no.

Tx, anyone who wants to know my position can ask me. But thank you for keeping everything "disclosed".

Droped the truck off this morning. Service writer said fan noise is normal.
And he had not heard of any over heating problems!!!!:blahblah:

:exactly: Haven't we heard that exact same wording before? Sounds like a scripted GM reponse. Sure, noise from the fan is normal, but not the fan being on all the time. Well, good luck with it...keep pressing your dealer and then GM.

Droped the truck off this morning. Service writer said fan noise is normal.
And he had not heard of any over heating problems!!!!:blahblah:

KB was right.....they won't be able to help you.

.

:exactly: Haven't we heard that exact same wording before? Sounds like a scripted GM reponse. Sure, noise from the fan is normal, but not the fan being on all the time. Well, good luck with it...keep pressing your dealer and then GM.

Just came back from the dealer, according to the GM tech line " we are aware of the problem but no PI as of yet, refer the vehical to the DM for further review." So in a nut shell, put up a big stink and they might take care of your truck, but no magic fixs are forthcomming from GM, only a possiable buyback.
:blahblah:

Just came back from the dealer, according to the GM tech line " we are aware of the problem but no PI as of yet, refer the vehical to the DM for further review." So in a nut shell, put up a big stink and they might take care of your truck, but no magic fixs are forthcomming from GM, only a possiable buyback.
:blahblah:

I have a "fix" coming, but summer is wrapping up. Then again I dunno if my investment will be viable to others. Soon I will need a sucker...errr I mean tester to try it. Kinda want a stock victim. Its my "extreme towing cooling kit" I sorta referred to before. Should eliminate the problem......and most of the fan. Anyway, we'll see.

.

Just came back from the dealer, according to the GM tech line " we are aware of the problem but no PI as of yet, refer the vehical to the DM for further review." So in a nut shell, put up a big stink and they might take care of your truck, but no magic fixs are forthcomming from GM, only a possiable buyback.

The fix is all the stuff they put on the 06's - or the other fix is coming soon, produced by Mothor Nature, called DECEMBER.

ROTFLMFAO!

How much IS a 200 lb block of CO2? oooh inquiring minds! LOL

you don't let it get boring at least. Let me be the first in a long line to guess: a rogue heat source sniffer from the Whyle E Coyote school of ACME?

This getting funny!!!!!
Good to see a sence of humor about all this crap!!!!

ROTFLMFAO!

How much IS a 200 lb block of CO2? oooh inquiring minds! LOL

you don't let it get boring at least. Let me be the first in a long line to guess: a rogue heat source sniffer from the Whyle E Coyote school of ACME?

Thats a good idea! Sounds easier and less expensive than my project, the engineering team time on the prototype is kicking my ass! Luckily for me my time is cheaper for me (except when it takes me away from my business then it costs more than this endeavor very quickly) The TxC Acme Co LLP kit may have to wait til next year, there will be plenty of hot running trucks then too, though there is still time this year for it to be useful to many people, especially since the trucks overheat even in milder weather. I just hate to invest this much money to develop something that people may not be willing to buy if it works out to be $500 or so. But if the problem is gone and the temps stay down and the fan is shut up almost always maybe enough would want it to make it feasible.

So I am moving ahead with it anyway, and if it turns out people want it now then great.....if not, maybe next year. If never oh well I wasted a few thousand. It's all good.

.


.

Just for clarification, my truck is fairly new and I have only done what I consider hard towing once. I did tow through from TN into NC into GA and finally back to Alabama. There were a few roads traveled that I didnt belong on, 40' toyhaulers have no business on these twisty mountain roads. The fan did come on when I pushed the load up some fairly steep grades, but I never saw tranny or rad over the normal, middle of the gauge ranges. The rest of the trip was interstate and I only get a minimum of fan when taking the load up a grade at 75+.

My truck is 2wd, I would assume, it has more room for air under the engine than 4wd. To be honest, I didnt know of these problems before buying the new truck. Now I am keeping a watchful eye.

Thats a good idea! Sounds easier and less expensive than my project, the engineering team time on the prototype is kicking my ass! Luckily for me my time is cheaper for me (except when it takes me away from my business then it costs more than this endeavor very quickly) The TxC Acme Co LLP kit may have to wait til next year, there will be plenty of hot running trucks then too, though there is still time this year for it to be useful to many people, especially since the trucks overheat even in milder weather. I just hate to invest this much money to develop something that people may not be willing to buy if it works out to be $500 or so. But if the problem is gone and the temps stay down and the fan is shut up almost always maybe enough would want it to make it feasible.

So I am moving ahead with it anyway, and if it turns out people want it now then great.....if not, maybe next year. If never oh well I wasted a few thousand. It's all good.

.


.
TXC If your project works I would spend $ 500.00 on it.

D

that's pretty good. 100 degree temps?

TXC If your project works I would spend $ 500.00 on it.

I am working on narrowing the cost down (finding out what it will have to be), and getting what I want, what will work, for around that price if possible. I look at the Mike L cooler which is $450, my thing is far more involved, so I suppose if I can present it for $500 or so then it will be well worth it. He is buying something already made and making brackets and reselling it. Custom designed pieces like I am creating aren't cheap, especially with my design criteria of wanting that temp needle to not move and that fan to keep quiet under all but even the most demanding situations, and maybe even then.

We will see, I will let you know more when I have more solid info.

.

Takes a Long time to read all the O'l posts.



We will see, I will let you know more when I have more solid info.

.

[quote=Kendall69;656146]The fix is all the stuff they put on the 06's - or the other fix is coming soon, produced by Mothor Nature, called DECEMBER.[/quote

ROTFLMAO

that didn't help you much Bliz.

Idaho, is there any point to your post? Should you remove it or a mod do it for you?

.

hmmm edit feature disabled on my computer.

Well!! Just got the call from the dealer! They said they could not find any thing wrong.
That the fan running all the time is NORMAL OPARATION.

You guys were rite!!!!

tried to save you the trip.

I not going to go. But my better half wrote a nasty letter to GM corprate.
They called yesterday and asked me to take the truck to the dealer.

What a ****ing waist of time!!!

Well!! Just got the call from the dealer! They said they could not find any thing wrong.
That the fan running all the time is NORMAL OPARATION.

You guys were rite!!!!

What a bunch of BULL$H**!!!!!!!!!!!!!!!!!!!!!!:mad:

nils I pm'd you

Sheer prices of everything may dictate the need for two kits. The base kit may solve the problem alone, might push everything up and try it that way, there are too many components as well as fabrication (of the componetry in the kit, not for the end user to do, kit will be bolt/swap type) in the overall planned kit to meet my $500 price point. Whether someone would pay the extra $ to get the premium kit would be a personal preference, much like "do i get the chrome exhaust or the mild steel"


Point may be mute anyway, base kit may get the job done, quantifying is the big thing, so I am going to go ahead with that idea and see what happens, keeping the more complex and costly idea on the board as backup. Prototype base kit coming soon.....

.

TxC-

I might be interested - I believe you told me you live in Webster, behind Baybrook Mall - would it be possible to pick the kit up at your location, and perhaps get some installation advice?

2004.5 2500HD LLY/A CC SB

TxC-

I might be interested - I believe you told me you live in Webster, behind Baybrook Mall - would it be possible to pick the kit up at your location, and perhaps get some installation advice?

2004.5 2500HD LLY/A CC SB

Yup, thats where I am. I do have to nail down some things, a touch of design still to go, but I think I can have the prototype pretty soon, and I will create easy to follow directions with pictures.

Do you run hot? When I get it together here shortly it really needs to go to a heavy hauling/overheating victim. Nothing stopping anyone though of upgrading just for insurance and capability.

.

Prototype is being air shipped to me, but it will still need work (modification) upon arrival. Then some design (fit/finish) and associated component creation after that and some parts procurement too. I will endeavor to have this complete as quickly as possible for testing, otherwise it will be a next year thing for most people.

.

No, I don't run hot, even pulling my 14.2K Montana 3685 with a GCVW of close to 22K. That's around this flat Gulf Coast in TX and LA, though. I've never seen my ect over 210 no matter what I do, so I may not be a good candidate for your prototype. I would still be interested when you reach the production phase, though - you never know when you might have to tow out of the hurricane zone in a hurry, and I would like the extra insurance of a proper mod kit. Since you have taken a systematic approach to this whole overheating business for over a year, can I assume that you will be doing more than just plugging holes in the stack support?

2004.5 2500HD LLY/A CC SB

slam!

Someone out there implying I didn't take a systematic approach to stuffing aluminum foil into the openings around the stack? ):h

So far the "temporary" mods are holding up fairly well, however we need something permanent and affordable for the long run. TxC previously mentioned using steampipe insulation around the CAC and stack, sounded good to me. Did we decide if that would work? :confused:

To date these mods have been very inexpensive: stack seal-($5); OEM dam($28); airbox($45)). These have improved ECT's, EGT's and MPG's substantially. Venting underhood temps is the next thing on my radar, haven't seen much progress there though. KB posted a neat looking hood, but I'd rather go with something simple if possible. So where are we with -p under the hood? :confused:

The MikeL cooler isn't just your average, everyday "off the shelf" cooler like you could buy at any parts place, it is much higher quality. While not cheap, it has been my experience that you generally get what you pay for. I'm happy with mine. JJ :)

http://www.dieselplace.com/forum/showthread.php?t=38208&page=76
What do you think?

http://www.dieselplace.com/forum/showthread.php?t=38208&page=76
What do you think?

I don't think you have any choice,,, If you want it fixed or a buy back your going to have to prove it to them... And as long as they are paying for the fuel it's a great chance to rub their noses in it :D

No, I don't run hot, even pulling my 14.2K Montana 3685 with a GCVW of close to 22K. That's around this flat Gulf Coast in TX and LA, though. I've never seen my ect over 210 no matter what I do, so I may not be a good candidate for your prototype. I would still be interested when you reach the production phase, though - you never know when you might have to tow out of the hurricane zone in a hurry, and I would like the extra insurance of a proper mod kit. Since you have taken a systematic approach to this whole overheating business for over a year, can I assume that you will be doing more than just plugging holes in the stack support?

2004.5 2500HD LLY/A CC SB

There are tangible and expensive components involved. This is a concept I have been working for a while now and has not been discussed on the forum. The base kit should do it, if not then there is an upgrade to that as a final shot. After that I will give up, the truck cannot be properly cooled, but I don't forsee it going that way at all. Stack sealing has positives, by the way, and will only do good, other than more moderate fan time perhaps and elevated underhood temps. My kit is independent of the stack and is aimed at being a complete solution without help from other modifications.

I have already spoken with a tester, he likes the idea, and as soon as I have the prototype system completed it will go out to him. I apologized to any others that volunteered, this is costing me way too much to put out more than one at this time. I am willing to eat the cost as it is now if it somehow bombs, but times 2 or 3 for testing is way more than any of us want to fall out of our pocket and disappear. If it knocks a grand slam as I think it should then we will go from there. I can afford 10 or 15 at a time with cash on hand without impacting anything else in my life but I am not going to sink anything else in my life for this. I hope to have the prototype ready in 7 to 10 days, but since there is outside work still on it the time frame is not 100% in my control.

To avoid bashing and endless naysayers, I have kept the idea under wraps. The mods will address anything that is out of line I am sure. Sorry to take this approach but otherwise I am sure the whole idea would blow up with bickering and arguement, and I would just blow it all off because it isn't worth the hassle to me overall.



:grd:
.

No, KB, no slam intended. I recognize the contibutions that everyone has made since the original thread started many months ago. Many possible causes have been proposed, and possibly the greatest effort so far has been the testing that eliminated most of those proposals as a factor in the overheating of the LLY - leaving the field open for new research.

And no, JJ, I did not intend to imply that your tin foil stuffing was anything more than a clever way to test a theory which, if proven correct, would lead to a more permanent material for "sealing the stack". And you were right.

The reason that I am interested in the kit that TxC is putting together is because I am looking for a turnkey solution to this problem - all of the components, produced from industrial grade materials, using professional manufacturing methods. Something that GM should have done a year ago. TxC has not said so, but I believe that is what he plans to do.

The solution seems to be at hand, thanks to all who have been active in this endeavor. My appreciation to all of you!

2004.5 2500HD LLY/A CC SB

Someone out there implying I didn't take a systematic approach to stuffing aluminum foil into the openings around the stack? ):h

So far the "temporary" mods are holding up fairly well, however we need something permanent and affordable for the long run. TxC previously mentioned using steampipe insulation around the CAC and stack, sounded good to me. Did we decide if that would work? :confused:

To date these mods have been very inexpensive: stack seal-($5); OEM dam($28); airbox($45)). These have improved ECT's, EGT's and MPG's substantially. Venting underhood temps is the next thing on my radar, haven't seen much progress there though. KB posted a neat looking hood, but I'd rather go with something simple if possible. So where are we with -p under the hood? :confused:

The MikeL cooler isn't just your average, everyday "off the shelf" cooler like you could buy at any parts place, it is much higher quality. While not cheap, it has been my experience that you generally get what you pay for. I'm happy with mine. JJ :)

I want to be clear:

Much progress has been made, thats for sure. I do not intend to "compete" with any other mods that have come out thus far. Each person can decide what they want to do, if it works out then my solution will be there for anyone that wants it.

I am not knocking the Mike L cooler at all, I know quality parts are not cheap and neither is R&D time. I assure you that you will see why my kit costs what it does, and at the price I want to bring it for, the value will be apparent.

.

Hey Tex if you need a tester in Idaho let me know Still have a bone stock overheater. out here. Although I can control the overheating by how I drive. I can even bring temps down mid clime now.

I didn't know I could sell stuff. Cool.

Don't look to a larger cooler to help overheating. Look to it to lower towing capacity, if ECT's are the limiting towing factor. In our case, ECT's are the weaker issue. I do not fathom the concept of a 180 degree transmission if coolant is running down the hill.

The coolers heat rejection gets eaten by the CAC and rad eventually. No way around that while the cooler resides at the stock location.

"compete"? All the solutions thus far are in the open, and FREE to the user. And they are wonderful, just ask them. But I'll litigate my copyright rights every time I am abused by a self-serving worm. Just finished up with one of those. Lots of fun.

Now, I need to go get a kit to sell, and wait for the mystery unveiling of the turnkey solution.

Hey Tex if you need a tester in Idaho let me know Still have a bone stock overheater. out here. Although I can control the overheating by how I drive. I can even bring temps down mid clime now.

Believe me I thought of you right away, but you have gone silent for a while. If I can swing two prototypes I will in the name of quicker/faster test results. I am trying not to hang out too much money on this until I have good results. I am not promising this to be the cure, but I think it will be, but if it isn't then we step up to the upgrade and if that doesn't present a fix then there will never be one IMO.

.

Personally I don't have a problem with anyone developing mods and selling them, that's what America is all about. Right now we're operating with some temporary, some permanent fixes. I'm anxious to see what kind of "kits" folks come up with. :ro)

Rob147, you know ol' JJ was just having some fun! ):h Nobody on the DP has laughed harder or as long as Mama JJ about the tin foil job. :D Later. JJ :)

MOD's, I’ll be Good; good for Nut’in maybe, but.

Nothing in this world is Free. The changes proposed by "The Group", are Free to the DP members, at a considerable Cost to the "The Group", Time and Out of Pocket Cash. No Group Member has ever asked for monitory compensation.

At one point the "Group" asked for help to purchasing a Recorder, Three Members responded, so most members are still not out a Dime.

MANY members have been Recording, SYSTEMATICALLY, progressive and compounding Data, the results of which are the Group’s recommendation's, still at No Cost to Members.

The Group has posted numerous Pic’s, if you have a modicum of ability, you can do it Yourself, at no cost (other than material and time, WoW).

I have difficulty understanding why anyone would pay for information that is shared Freely.

If this post is not acceptable, I am truly sorry. I am entitled to my opinion.

Idahofox, AKA, the Dumb Idaho Potato Farmer.

Boys boys boys

I will say this

This is a tech forum,tech area of the forum for the most part nontheless. Not the area for a constant pissing contest .This forum is for the trading and helping one another out to solve problems and or share good and bad experiences.

Sometimes we must agree to disagree.Instead of constantly throwing jabs and pissing off one another.

Either stay out of certain threads or use the features available in the users profile you struggle to stay clear off.So as to eliminate this issue.

Such as Add (fill in the user name) to Your Ignore List

OR!

If I continue to see the constant bickering we will have no choice but to give brief timeouts or cool off periods.Other members are tired of seeing and reading the BS.So the feed back I'm getting tells me.

Last chance,only YOU control where we go from here

Mack,

Does that allow Marketing a product?

Wandering minds.

Idahofox

Good point Idahofox! Several members have gone above/beyond with testing, doing analysis, etc., both at the expense of materials and their valuable time. Yet when offered the opportunity to contribute a very few answered the call, certainly not our best effort!

I'm glad you posted this though, I need to send KB the money I received by PayPal. Every little bit helps. JJ :)

There are tangible and expensive components involved. This is a concept I have been working for a while now and has not been discussed on the forum. The base kit should do it, if not then there is an upgrade to that as a final shot. After that I will give up, the truck cannot be properly cooled, but I don't forsee it going that way at all. Stack sealing has positives, by the way, and will only do good, other than more moderate fan time perhaps and elevated underhood temps. My kit is independent of the stack and is aimed at being a complete solution without help from other modifications.

I have already spoken with a tester, he likes the idea, and as soon as I have the prototype system completed it will go out to him. I apologized to any others that volunteered, this is costing me way too much to put out more than one at this time. I am willing to eat the cost as it is now if it somehow bombs, but times 2 or 3 for testing is way more than any of us want to fall out of our pocket and disappear. If it knocks a grand slam as I think it should then we will go from there. I can afford 10 or 15 at a time with cash on hand without impacting anything else in my life but I am not going to sink anything else in my life for this. I hope to have the prototype ready in 7 to 10 days, but since there is outside work still on it the time frame is not 100% in my control.

To avoid bashing and endless naysayers, I have kept the idea under wraps. The mods will address anything that is out of line I am sure. Sorry to take this approach but otherwise I am sure the whole idea would blow up with bickering and arguement, and I would just blow it all off because it isn't worth the hassle to me overall.



:grd:
.


PLEASE READ THE PART IN BOLD ABOVE IF YOU DO NOT UNDERSTAND IT PLEASE READ IT UNTIL YOU DO.

Thank You.

.

Silent but around I'm sure no one wants to hear what I have to say anyhow. none the less I'm sure if your product proves out there will be a line around the corner. And as far as nonvendors selling things on this forum I have bought two items so far so why not three.

I can't discuss the project anymore, so things will have to wait a short while here. Once it is validated I will obtain vendor status then whomever wants a kit can get one and all the pictures/benefits etc will be made available, until the solution is proven though it doesn't matter. Place your bets LOL!!!!!

Good luck to everyone!

.

...Place your bets LOL!!!!!

Good luck to everyone!

.

I'll raise you'r Bet, LOL !!!!!

Luck plays no part, I play with Skill ! :grd:

Fox

I'll raise you'r Bet, LOL !!!!!

Luck plays not part, I play with Skill ! :grd:

Fox

I wasn't betting :) I inferred others might.

It didn't take any skill to have an older design truck like you do that has nothing to do with the later ones that are having the problems. I fail to see where your skill was applied on your vehicle applying to this problem. Tagging along is fun too I suppose. :)

As your LUCK would have it, you were in the market before GM released the beast that is causing all the hullabaloo. ;)



I am still open to "bets" by the way, and big $ doesn't scare me away it only motivates me all the more especially when it is so easy to collect. :ro)

.