QP, there are suspicions it could be a flood car, we just dont kbow. Some signs say yes some say it just sat for years then sold quick. Could have flooded when sat. We dont know.
You know Ford bought Volvo, that we know.
Originally Posted By: armos
It immediately fixes it, and not from cooling off? It stays working while still just as hot?
Disconnecting battery would reset the ECM. But I can't think of any reason the ECM would have decided to disable higher gears, so that doesn't really make sense.
Was the coolant temperature running very hot when this happened? I can imagine the ECM could be programmed to force a lower gear to help cooling, but I doubt that's it.
I've seen where (older) ECMs are programmed to idle higher when overheating. I don't know if they extend that to the shifting logic - probablyno[/
You've verified the transmission fluid is (still) at the correct level? I'm wondering if the trans is overheating. Somehow it would be nice to verify that the fluid is circulating as it should be. I don't know how best to go about that.
This is a new radiator, right? Not a junkyard part?
Radiator is NEW. I have receipt.
And you also capture my confusion.
No rumbling tank, no obvious overheat... Suspecting voltage issue, temp gauge fluxuates as does gas gauge.
Maybe its shorting the ECM?
Today was the most bizarre. Normal day of use, ~100 long, shifty, hot miles, AC on all day. Then, when coming home.. I lose OD. Then, a mile from home.. I lose third. NO smokes, overheat, smells. 2, 1, and R shift and work perfect. Full hot.
I let it sit 20 minutes: I have inconclusive if 3rd is engaging.