[diesel dan]

I just came across this video on streetfire.....I realize that lly's overheat, but I never dreamed it would be this bad. Not to count this idiot behind the wheel not stopping and at least doing something about it, or even letting the truck cool off. I just cant believe that someone would keep driving arrogantly just to prove a point. :nunu: And the idiot wonders why it went into limp mode.....http://videos.streetfire.net/category/Trucks^^Offroad/1/b108e8c2-25df-4054-8090-98af013f4333.htm

 

[imported_Tommeyboy]

WOW Not good

 

[dmaxvaz]

you guys look at the dash in the video- it says 70 mph and 3000rpm, smart *** is towing in 4th instead of overdrive that could be a problem if you're towing near redline for a while in hot weather?

 

[TheBac]

Thats the infamous "Overheat video". I'm not exactly sure what the outcome of TxC's suit against GM was, even with that video.

 

[heavypulling]

so is it just the lly that overheats like that, because the lumber yard were i use to work we would pull well over 26,000 with the lb7 and they never overheated, and thats in 90 degree wheather. we had a 2005 powerstroke that had 4 turbos go out but that is why i wouldn't get a new powerstroke.

 

[dmaxvaz]

yeah some lly s do, knock on wood; my 2 lb7s have not overheated yet, and i have towed in 90* weather with no problems.

 

[[email protected]]

So far I haven't had issues (knock on wood). I towed a ford dually to a few sled pulls on some HOT days this summer, but no problems:shrug:. If (when?) I start having issues I'm going to killerbee, I like his stuff.

 

[TheBac]

Yeah, its only the LLY's that seem to have a problem. I am not sure of the percentage, though.

Killerbee knows infinitely more about this subject than I do, though.

 

[stevebos]

Thats the infamous "Overheat video". I'm not exactly sure what the outcome of TxC's suit against GM was, even with that video.

A member of the Diesel Place posted Chris was awarded $30,000 and kept the truck, and that the case was tried on the basis that the truck's performance did not meet GM's claimed performance.

 

[stevebos]

I just cant believe that someone would keep driving arrogantly just to prove a point.

Chris developed and sells an auxiliary radiator for the Duramax, the Rad Mod V2.

I beleive the point Chris is trying to demonstrate is that an LLY-equipped truck will not tow the manufacturer's claimed maximum load at legal speed limits under certain conditions.

Some owners expect the truck should do so under any condition. Others, myself included, don't.

 

[TheBac]

Thanks Steve. I had not seen that information.

 

[chloeourdog]

Chris developed and sells an auxiliary radiator for the Duramax, the Rad Mod V2.

I beleive the point Chris is trying to demonstrate is that an LLY-equipped truck will not tow the manufacturer's claimed maximum load at legal speed limits under certain conditions.

Some owners expect the truck should do so under any condition. Others, myself included, don't.

I was impressed that Chris' DMax kept functioning at 250 degrees for the period of time it did under the load (I agree it should have been designed not to get that hot in the first place.)

When I used to see my gauge go past 210 I let up on the throttle (would happen on grades towing my 5th wheel) because I was concerned about overheating and damaging the engine. It looks like GM makes the truck loose it AC, then cuts power until it cools down some.

I wonder what caused Chris to actually go into limp mode? He had a P1093 - I believe that is a fuel pressure code. It would be dangerous going into limp mode with a big load on an Interstate.

-M

 

[STPETEBLUE]

you guys look at the dash in the video- it says 70 mph and 3000rpm, smart *** is towing in 4th instead of overdrive that could be a problem if you're towing near redline for a while in hot weather?

Look at it again, he's in OD. Truck is downshifting to try to keep up the speed.

 

[dmaxvaz]

down shifting up to speed- he was going 72 mph in 4th , with a 1093? low fuel pressure. do lly s have o/d lockout lite on the dash or the shifter?

 

[rvn4me]

I haven't watched the video in a while but I think he was awarded $36,000 and keep his truck. I think that might of been his second motor. GM replaced his first one. It was funny reading all the posts on this and prove to GM that all LLY's will over heat given the right conditions. Thanks TxC and that old Dodge.

 

[killerbee]

smoke and mirrors

He had a P1093 - I believe that is a fuel pressure code. It would be dangerous going into limp mode with a big load on an Interstate.

-M

Fuel is used as a coolant for the FICM electronics as well as displacing injector heat. The hot fuel returns to the tank where it cools in the fuel cooler (which has only questionable performamce). With those conditions, fuel shoots up in temperature, I have seen 230 or so when the tank is not empty. If you look, in one shot, you can see he has run his fuel tank empty, 19 mile range IIRC. When empty, fuel temp goes higher. The 1093 is due to vapor in the fuel. If you look at rail pressure, you would see some hickups: pump cavitation induced by high fuel vapor pressure. Fuel demand itself is low, the ECM is in defuel mode beginning at 244 ECT.

Not sure why he continously compares himself to that camper. The drag and weight profiles are not comparable. The jeep ads almost nothing to drag, it is completely blocked. He even went out of his way to back the uhaul in, knowing full well it represents much higher drag that way, (loaded as far aft as possible also insures maximum air drag). That's what I would have done if I wanted to pull the wool over a judges eyes with a "legal load": in this land of opportunity, a good attorney can exploit a neat magic trick. GM must have really come naked (if these various accounts of judgement claims are true).

What is also ommited, is the vehicle configuration. I believe from the video, the truck is not stock under hood. Hint: his computer screen sheds light on it.

An aside: without names, you heard the voice of the guy on the cell phone. As a professional driver he is the king of overheating the Dmax, even LB7's. His motto is "time is money", with the record for the most TPS experience past 90%. So when his overloaded son was on the side of a hill puking, his advice to him was "just put it to the wood, if it's going to overheat, it's going to overheat". Thus his son overheated 6 times on the same grade that afternoon. I wouldn't want to be spreading that story around... My point is not to berate, but point out, common sense somewhat prevails for those that acknowledge the limitations in the physical world around them.

Yes, highway limp mode could be considered dangerous, but watching someone record himself driving an overheated 22,000 lb load with his knees, I fear much more.

:thanks: for listening.

 

[stevebos]

Fuel is used as a coolant for the FICM electronics as well as displacing injector heat

And a lubricant for the fuel injection pump...

 

[chloeourdog]

So ... overheating?? ultimately caused the low fuel pressure which resulted in a limp - I would think that running low on fuel made it happen. Another reason to keep the fuel tank full or at least never let it run too empty

I did not see anything wrong with the load based on what GM advertises our trucks can handle (they only stipulate maximum weight.) With respect to a lawsuit, you just need to show the truck does not do what it is advertised as being capable of doing.

I was curious as to what might not have been stock on the truck - I could not see anything out of the ordinary (replacement engine with GM supplying the recent '06 CAI as 'the fix.')

I would like to see a video of a truck pulling the same load (on a warm day) with a V2 or a truck pulling that load with a TD-EOC or maybe a truck with some other similar cooling device. Imagine a truck with the same load on the same route with similar temperatures .... only thing left would be the dodge - and the DMax passing the dodge :Thumbup:

-M

 

[TxChristopher]

In my opinion, not heading the warnings made it limp. I understand he intentionally did this, but the limp is an incidental result of otherwise foolishnes.

You sure tend to talk alot about things you just don't know about. Just about everything you said in this thread was incorrect and WAG's.

.

 

[TheBac]

I would like to get an explanation of the video, so we don't get any info incorrect or jump to any incorrect conclusions. My own opinion is that TxC was trying to max out the load on the truck to show GM that it could not handle what they advertise, and that somehow, somewhere, some person would load it and drive it exactly like that setup, and O/H would result.

Hey...he got GM to pony up in the end. Thats something most of us could not do.