One of my friends owns a 2010 Toyota highlander that he has always taken great care of. There is no rust, it has new suspension and tires, the body and interior are great. You would never know it had 250,000+ miles on it. You would think it had 50,000 miles on it based on the condition.
A month or so ago the engine began misfiring with a flashing check engine light and it would barely drive. It almost got stuck in front of their garage but they got it moved out of the way enough. They called the local Toyota dealer and had it towed it. They did a bunch of work including new spark plugs, coils, and fuel injectors. The car ran great on the way home. Then the next day when started up, the check engine light was flashing again and the car would barely move.
He had it towed again to a shop that I use. They diagnosed it as a failing VVT-I system which will trash the engine when it completely lets go as the 3.5 are interference engines. It sounds like this is a labor intensive fix and a known problem with these engines of that era. I am kinda surprised a Toyota dealer just threw a couple grand in parts at it and didn’t investigate the timing, especially knowing the mileage and the engine involved.
He is own the way to buy a 2022 model with the same engine (flaws were fixed in 2013 or so) and has offered to give me the car if I take it away. I am curious if this is a good deal for me, even free.
The engine ran smooth with plenty of power until recently. It doesn’t use any oil between changes. the transmission has always shifted smoothly and seems to be in good working order. The only other issue is that the climate control system seems to take a minute or so to “wake up” and turn on. He said this started a couple years ago but hasn’t really gotten any worse. You just have to wait 30 seconds or so and fiddle with the buttons until it comes to life, then it works fine for the rest of the trip.
New reman engines costs $6000+ from the parts stores. I know these can be questionable in quality. I am going to call the shop I use about a Jasper as they use those. I am thinking that it might be a better idea just to fix the engine in it as there is nothing really wrong with it (that I know of) besides the timing problems but of course want to check here.
How are the transmissions in these things? This is the AWD model which I am sure ads some complexity but is nice to have in this area.
If I were to do this, what other parts should be changed while I am in there? It looks like the water pump is one part that you always change if you get in this far but what else? Also, would replacement VVT-I parts be an exact replacement or would the flaws in the original design be fixed? I guess another option would be if one could get a decent used engine from a 2013 or newer and swap it in. I assume that this would work by swapping the accessories.
The shop I use charges $95/hr. I appreciate the offer of the “free” car and would have a use for this but don’t want to end up spending more than the car is worth fixing it. What would the overall cost estimate be for this work?