2008 Tundra 1GRFE V6 Engine Dead at 98k

With both engines on the ground it would only take about 30 minutes to swap everything and be done with it and do it right. It's up to u, but I would just swap them and be done with it.

 

X2 And OP if you have engine out may as well do all the maintenance items
Front/rear crank seals, new o-rings around oil pump, new water pump new idlers, I would check timing chain guides and replaced those if they wore.
Cleanup screens in VVTI valves.
EDIT: forgot you should check you A/C pump and put new bearings, brushes in Alternator. Rebuild starter ...

 

Thanks for the recommendation. Will take it.

 

Hi Guys...

I have a bunch of updates and a few pictures to share.

First of all. I will to eat my own words against toyota as a gentleman.

The engine died because of SEVERE sludge. Yes, I did all the services at the dealer, but the truck is mine since 50k miles, I don't know what happened before that 50k. Or I don't know if the dealer was using cheap oil instead of a good one.

The truth is that the oil channels were covered in sludge, so did part of the oil pump. That says enough and you all will understand what happened here.

Pictures of the old engine:











Ok. I don't have enough evidence to point the dealer, even if they used non original filter, this kind of sludge is definitely an oil-maintenance related issue.

------

Apart from that.

I have another problem and need someone with good knowledge at tacoma engines to help me figure out how to make this work. I will really appreciate it...

As I said before, I bought a tacoma engine, the thing is that the heads are different, but not only the heads, the exhaust manifolds are different and also the EGR valves...

Let's see the pictures:

TUNDRA HEAD - EXHAUST:


TACOMA HEAD - EXHAUST:


As you can see, there's a small hole in the tundra's head that the tacoma doesn't have. This 'hole' goes to a hose in the tundra's exhaust manifold as you can see in the following picture:

Tundra Exhaust Manifold:


Tundra's secondary air injection valves (thanks toyota tech31):


Tundra's exhaust 'return hose'



Tacoma Exhaust Manifold:



What do you guys think I can do to make this work? Or should I just go ahead and get a tundra v6 engine (difficult to get and expensive)?

Aside from that, the only difference I see is in the oil filter area:

The tundra has an oil filter water cooling system that the tacoma won't show:
Tundra:


Tacoma:




By the way, tacoma's engine looks clean to me:

 

If dealership is the one who did oil changes they owe you an engine. Simple. Fight for it.
Otherwise.

Otherwise you will have to get headers with tubes to connect to EGR.
That cooler is for tow package so you should be able to move to Tundra engine.

 

These are NOT EGR valves, they are the secondary air injection valves i have mentioned previously.

 

The extra holes in the exhaust ports are for the air injection system. For some reason they put this system on the Tundra V6 but not the Tacoma V6 even though they're the same engine (the 2TR 4cyl has this too). It injects air on cold startup for emissions purposes.

Edit: ^^^^ Ooops, beat me to it. Actually I just looked at OP's previous pictures and saw that the exhaust manifold was included with the 'new' engine. No need for new ones. Did it come with the Tacoma ECM too?

 

That's what my mechanic said. He also states that there's no way to make it work properly, so that's why I'm asking you guys, I'm sure you do know more than him and than me (used to handle mercedes engines).

 

No. it didn't. The ECM is not in the nice package I got.

 

If I install the engine, using tundra's right valve cover (to sit the air intakes properly), using the tundra's exhaust manifold (due to its different located cats) and basically canceling the air valves system, do you think it will work fine?


I knowww I'll for sure get a CEL for that since 2 sensors will be getting no information, but, will it work? Until I find a tundra engine?

 

any thoughts?

 

But but but but....

All oil is the same and it NEVER wears out!

 

I think that was the previous owner thoughts.

 

Not uncommon.

Chatting with techs back when the Camry sludging TSB/recall was going, they were indicating that they were seeing cars with 30k that had been in for only 1 oil change.

 

Now I can't sleep well, my pre-owned mercedes engine is all the time in my nightmares, how to tell if there's sludge in it???

I mean, is there any way that you can detect if you have a 'sludgy' engine? My benz looks clean as summer heaven when you open the oil cap, but I know there will not be sludge in most cars.

 

Generally the oil cap will show evidence.

If you don't trust a clean cap (previous owner may have been in the habit of wiping it out), pull the valve cover(s) and have a look.

200k on my boss's '88 Camry, changed every 7500 with Mobil-1 5w30, engine looked brand new under the cover in '95.

 

BTW.. I will sell from the tacoma engine:

- AC Compressor
- Starter
- Steering pump
- Alternator
- Intake manifold

Anyone interested PM me.

 

I think all you have to do is connect somehow air injection to manifolds right. I am surprised that your 1gr would have this. never heard about v6 having them I knew they are on v8. Oil sludge ... well that is the risk when you buy used vehicle. Not really easy way to tell there is sludge with out opening part of engine. I run through repeated oil changes (2500 miles a part) that keeps putting fresh oil with additives to wash the sludge but its not guaranteed solution.

 

I think that's probably true. Air injection works by introducing fresh air into the exhaust to burn off remaining unburnt fuel. Not sure why they put extra holes in the heads for that. I bet it would work just fine if you connected the air injection holes in the manifolds to the rest of the exhaust passage in the manifold. (use a grinder to eliminate the barrier between them.) You'd still have to mount the air injection valves to the engine, but I'm sure you could figure that out.

Swapping ECUs to match the engine you have could work too, but I'd be wary of the wiring being different. The other issue is visual inspection at smog time.

I'd say mod the manifolds and try to make it invisible. Or just leave it as is and the tacoma exhaust gaskets will block the passages in the tundra manifolds. The air injection won't work, the engine may or may not pass smog like that (sniffer test). What I don't know is if the absence of a functioning air injection system will affect the fuel mixture, since the Tundra ECU is going to interpret the O2 sensor readings as if the air injection was working.