For mine it was the thermostat getting stuck in a partially open state. By increasing revs, I could increase the speed of the water pump to cool it off by forcing more coolant past the partially stuck thermostat. I'll be draining the coolant system and changing my thermostat in the next couple weeks.
I had the same issue where revving up the engine would get the coolant circulating again. But it was because the old thermostat wasn't opening until it got significantly hotter than the 180 degree rating.
The crown vic is model is Exactly the same, and cost $100 less !!! I bought two, just in case. After 1 year, mine is still working great.
Remove the big plastic engine cover. It serves little purpose other than looking pretty and keeping dirt away.
You may have bubble in coolant, check your small 15amp fuse, it's yellow for radiator fan, mine went out causing spikes in temp.
Could be a lot of things, Bubble in the coolant, water pump possibly leaking "if coolant goes low" or might be just the fan. hope you figure it out
For mine it was the thermostat getting stuck in a partially open state. By increasing revs, I could increase the speed of the water pump to cool it off by forcing more coolant past the partially stuck thermostat. I'll be draining the coolant system and changing my thermostat in the next couple weeks.
I had the same issue where revving up the engine would get the coolant circulating again. But it was because the old thermostat wasn't opening until it got significantly hotter than the 180 degree rating.
YOU HAVE A LOOSE COIL PACK
lift up on coil pack connection while you tighten down the hold down screw.
all ecotec are notorious for this problem
Don't run it too long with it missing out like that, it can clog the cat since it's so close to the exhaust manifold.
Car doesn't have a cat anymore
Well that was a waste of time watching, what was the outcome of the fan control? did it work or not?
Yes it did work