I think I will try changing the temp sensor to see if that works. But as for the relay, it doesn't just click; it crackles as the fan starts to turn then stops and the fan slows back down, and repeats that a few times though usually it eventually comes on full blast for a minute or two, until the engine cools back down some. Maybe I'm wrong about it coming on late; it's just with most cars I've driven before, the temp gauge doesn't fluctuate as much as this one; this car's temp gauge levels out at a bit below quarter of the way around on long highway trips, but when idling it goes up as high as almost half around (I think half is marked 220 F), except when the fan is operating properly (such as with the A/C on), then it stays a little below quarter or even lower. Maybe that's normal for some cars?
There's only one fan, on the left side of the radiator, despite the A/C; I think that's why it always comes on with the A/C on. The fan itself doesn't make any weird noises, it seems to work fine; the only noises are the crackling from the relay.
Also, with the heat on, the fan seems to come on properly, though there's frequent clicking as if it were cycling on and off constantly (it could be from something else, I'll have to look under the hood to see if it's the fan or not).
Wow this is getting confusing, sorry, and maybe I'm overreacting to nothing. But I've had lots of overheating disasters with cars in the past, so whenever the heat fluctuates up at all, I start getting nervous even if it's not yet getting out of control.
Friday, August 31st, 2007 AT 4:07 PM