2006 4.7 in a 2002 Tundra

So I have a 2002 tundra and I’ve been having non-stop coolant leak issues with it and every time I try and fix one another shows up and I’m losing my mind over it so I’m pretty much at the point of trashing the motor that’s in it and putting a newer one in.

So now the question of have is would the engine out of the newer 1st gen (2006) plug in and run on the older (2002) ecu or is there obstacles that I’m gonna run in to? Thanks for any help!

 

What in the world? This makes no sense at all to me.... you have a few coolant leaks and now you want to thrash the motor?

 

Short answer is no, you cannot plug the 2006 into your 2002. Different engine setup, different transmission setup. Could it be adapted? I would imagine it could. But going through the coolant system thoroughly one time to bring it back to new and serviceable condition will be much less trouble. What kind of coolant leak are we talking about?

 

I feel like tracking coolant is easier and cheaper.

Cooling system is pretty basic, You can replace everything for under $1,000. Maybe just do that? Even the overflow bottle.

 

Yeah, that's a bit extreme. Put some dye in it and check it over with a UV light to see where its leaking.

 

So the leak started about 6 months after I had just replaced the timing belt and water pump. It looked like it was leaking from the water pump that I had just installed (which is a very frustrating sight) everything on the install was torqued to spec but it still seemed to leak so I drove on a leaky water pump, or so I thought, I just check and re filled my coolant religiously and this past weekend I finally got around to doing the water pump and timing belt again. Made sure all mating surfaces were clean with no particulates and everything was torqued down again I get done take it down the block and it’s still leaking... upon further inspection it seems that the leak might be coming from the head and if that’s the case I figured it would probably be cheaper just to find an engine that was in a wrecked truck and toss it in. That’s why I was inquiring about the 06 motor cause if I’m gonna put a new one in why not one with more power lol

 

@Kbmcabee1776

I chased a coolant leak for 3-5 months. Scratching my head on it. I replaced everything but the radiator. Still had a leak.

Ordered 3 different radiators that were shipped to the house. All 3 had major damage during shipping.

Finally I had one shipped to Autozone/O'Reilly's (da store) I inspected the radiator before paying for the part. (The parts store shipping people are easier on parts going to the store, so it seems.)

Installed My new radiator and the leak was fixed.

What had me puzzled was the ORIGINAL radiator was holding pressure, and not leaking while idling or putting around town.

The leak was prevalent at highway speeds. 55-75 mph.

I was going through a gallon of anti-freeze a week...


I think the general consensus here is OEM is best in that situation.

 

TRULY STUPID THOUGHT HERE.....Have you completely cleaned the exterior of the motor to make sure it wasn't some residual coolant that had puddled up somewhere?
Maybe take it to a professional shop and have them check it out?

 

Yes I did. I did that right after I replaced the water pump the second time and it started leaking again. I’m thinking I might just take it in to Toyota and have them take a look at it.

 

Dude, just take it to a good mechanic. I'm sure your mechanically inclined but i bet they can figure it out in an hour.