Scotty, love your work and been watching for years. I've got a 2010 Toyota RAV4 since new with 210,000 kms on it. Love the vehicle, it runs great and would like to keep it until the floor falls out. On two different occasions last summer once during some curvy road driving and once in stopped traffic the car stalled and wouldn't run again. Possibly getting too hot but the needle didn't move much. I could eventually get it started but it was rough and as soon as I put it in gear it would stall. Feathering the gas I eventually got it off the road and let it cool off then once travelling at speed it ran fine then and ever since. My wife is now nervous about driving it by herself and getting stuck someplace so she wants it gone. If Toyota still put the V6 in the RAV4 I'd do it, but they don't so I'd like to address the potential stalling. In similar situations I'll remember to put it in Park when I can but that's not a hard solution. To me it's either heat getting to the ECU or a vapour lock if that can happen on fuel injection. I'd appreciate your suggestions.
Does it crank but not start, or it doesn’t even crank at all?
Cranks just fine. Once started it stumbles and as soon as you put it in gear it stalls. If you hit the gas before it stalls it runs really rough and after putting it in gear it will stall again or if you can keep some revs up it will creep along for a few feet then stall again. Once cooled off for fifteen minutes it runs likes it's new.
I would try and check fuel pressure when hot just to eliminate a fuel pump having a hot condition I have seen that before
90% of my driving is rural so I'd think that I'd run into the problem more than I have if it was the fuel pump. Also I rarely go below 1/2 a tank so the fuel would be keeping the pump cool. That's a good suggestion though so I will check the pressure as it is. Problem with the trouble is that by the time I get it out of traffic and dig out and put the pressure gauge on it the heat will have dissipated and it'll be running fine. Maybe. But thanks @r4nier , a fuel pressure gauge isn't that expensive and it's something I will use on my motorcycle as well.