No judge would accept work done with no warranty! Repair shops are professionals, as a professional you should decline work if you feel like it's not going to be satisfactory. He can give them a 30 days or something really short.
The Car Care Nut talks UR V8 blown head gaskets (10 Viewers)
- Thread starter dudemancool1904
- Start date
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There's a reason many indy shops will hang up the phone when you say the words blown head gasket
Any place like that is a 50/50 gamble in my opinion same with ebay which is where most of them are. I would just rebuild it myself if it was needed.
No doubt. It may would likely involve standoalone controllers for the ECMs. But it could be done. 6.0 in a LC, very nice.
The value would plunge IMO.
Agreed. I’d imagine most, if not all, making the swap would care about resale.
if there was a mapped out procedure for it, and it was cost effective in comparision to a new 5.7 3ur, then why not. You still have the rest of the truck.
bloc
SILVER Star
Because there is no chance even a high level shop will be able to do the durability testing to prove it’s actually as reliable and integrated as the 3UR was from Toyota. Sure it may be great for 75k but when that weird wiring issue pops up and the shop that did the work changed their procedures three years ago..
The LS engine is far more validated than the 3UR by a lot. If both systems were standalone, I could see no issues that would "arise", if it could be done. The power numbers of the two engines are similar.
It would likely have to be 2 separate systems, engine and tranny. Fully separate.
With this thread and concern circulating, I ordered a coolant test rather than running out and doing a full flush.
I have a 2016 with just about 64k miles and believe I still have the original coolant in the radiator.
This has been a Colorado LC since the purchase, so moderate extremes in terms of temperature, regularly serviced, and always garaged.
Here are my results, believing this test is accurate!
I have a 2016 with just about 64k miles and believe I still have the original coolant in the radiator.
This has been a Colorado LC since the purchase, so moderate extremes in terms of temperature, regularly serviced, and always garaged.
Here are my results, believing this test is accurate!
bloc
SILVER Star
I’m not talking about the reliability of the base engine, I’m talking about the integration.. and you are right to add the caveat “if it could be done.”
Full standalone is pretty difficult if the owner cares about stuff like cruise control and gauges working, and I’m pretty sure anyone that could do this would rightly ask an incredible amount of money for it. At which point you could have done all sorts of things like just buy another 200 to have an engine on standby.
For the record I know a little about integration as I took an atypical path to putting an L92 and 6L80 into my 80-series, electing to use the GM BCM for tap shifting, cruise, reverse lights, and other features I’m forgetting by now. It shouldn’t be a surprise to anyone that a 200 is an entirely different animal.
And this whole conversation was sparked by an arguable FUD video posted about a generally very reliable platform. Anyone remember the prevalence of head gasket issues with the 1FZ-FE? But I guess at least those can be machined effectively.
PS if you want a reliable vortec you’ll need to be choosy and avoid “features” included in the majority of them like AFM.
Hey, right off the bat it says NUT in the title….
Not to mention most of the new LT motors only have direct injection which gums up the valves.
A LS3 or a LS7 would be a worthy candidate, but that’s $$$ and a used 3UR from a junkyard would be a better choice.
yes, pre 2011 LS or any year 6.0 vortec for sure
I agree, if they can be found
I guess new coolant might have been a benefit of having a leaky water pump replaced by the dealer at about 65,000 miles. But, do you think a water pump replacement by the dealer would have involved a full exchange/flush of the coolant? Surely, they wouldn't save the old coolant and put it back in would they? I would think they'd replace all the coolant, but I guess it's possible they saved the old or only replaced what was lost in the water pump replacement process. Any thoughts on this who has had the water pump replaced by a dealer?
bloc
SILVER Star
Most likely this. I’d guess about a gallon, or a bit more.
They likely would have charged you for a new gallon of coolant as part of the job. Check your invoice (if you still have it), you might see a line item for a gallon of SLLC.
Engineer here, not that it makes me any smarter but curious what statistics are on these failures. I have 190,000 on my LC200 and if the failure rate is less than 5% at that higher mileage then no need to lose sleep. Check PH and move on. I fall into this trap of “common issues” with engines on Youtube does not mean common issues with engines in general.
Wish there was a database somewhere. Absolutely certain Toyota knows but does not make public.
Finally, overheating definitely creates leaking gaskets and not necessarily immediately. LC200 do have common radiator issues (mine included) where you need to shut down immediately. If momma drive home from soccer practice while overheated that could definitely create this issue down the road but no way of knowing if that is root cause in these failures…
Wish there was a database somewhere. Absolutely certain Toyota knows but does not make public.
Finally, overheating definitely creates leaking gaskets and not necessarily immediately. LC200 do have common radiator issues (mine included) where you need to shut down immediately. If momma drive home from soccer practice while overheated that could definitely create this issue down the road but no way of knowing if that is root cause in these failures…
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Obviously overheating can blow a HG but in the case of this LC the owner has posted on here that it was driven for over 80k miles by him and the next owner with no knowledge of any overheat.
Also if your rig recently overheated you would tell your mechanic that before you even handed over the keys. It would be a pretty big omission for TCCN to omit that any relatively recent overheats had occurred in any of the failed URs he's been seeing.
