Radiator Fan Not Working After new intake manifold
I've been searching around the forum trying to find some info on my problem.
I have a 99 Vic with 190k on it. The intake manifold cracked and it was losing coolant. I had planned to use the aftermarket dorman kit, but my grandpa works at a ford dealer and got me a recall manifold for free. It matches up port wise so I know its the right series at least. I do not know what year the manifold is actually for. My original manifold had only one temp sensor connector in it. This one had two connectors. The temp gauge does work, though even after the car is off the gauge stays in place. I could have swore before they all zero out after the car is off.
Anyways, after replacing the manifold, giving it new plugs, thermostat, pcv valve, and addressing some other maintenance issues it fired right up on the first try. If I turn on the AC the radiator fan does come on at low speed. However, while on a test drive or even idling in the driveway, the temp needle will get quite close to H on the verge of overheating. The radiator fan never kicks in. Would the temp sensor difference on this manifold cause that?
I have not flushed and put new coolant in yet, its old and discolored from the leaks. If I am idling and the temp skyrockets I can turn on the AC for the low speed rad fan to kick in and the temp will decrease slowly. The radiator does get very hot, so I know the new thermostat is opening when the coolant heats up.
Anybody have any ideas?