Deaconblue
Well-Known LVC Member
Leads quite a bit of credence to Toyota's unintended acceleration problem. I have maintained all along that it was a stray electrical pulse confusing the ETC.
After some yard work, I finally got the DCCV replaced later this afternoon. Not a bad job and bleeding the coolant system was less difficult than other cars that I have owned. I have been using Zerex G-05 coolant and distilled water in other vehicle for some time now, so I had the supplies on the shelf in the garage. RockAuto had the best price on the replacement Motorcraft #YG-378 controller. The key was to capture and measure all the coolant that came out of the engine - just over a gallon. That way I knew how much had to be added back into the system. I was able to add all of it back into the engine, except the last 18oz that went into the degas bottle. After a several mile test drive I noticed that the repair also cleared up the "Service Park Brake" issued. Based on when that warning light started coming on and how it was coming on more often of late, the DCCV started going bad (shorted drivers side solenoid coil) a couple months ago. Since it failed in the open position and it was late winter / earlier spring, it took me a while to figure out what was happening. I am sure glad to have full control of the cabin temperature again.