03-05-2016, 11:24 AM
(03-05-2016, 10:05 AM)JTaylor2005 Wrote: The thing is. I know the fans work on my car. I have just never got it hot enough to get them to come on yet. Modern cars they are on and off all the time. I haven't even had mine on even in traffic haha. I know they work as I have unplugged the sensor before and they came on. Also a stop light lit on the dash because it thought it was too hot. I'm not even close to that even with the car board in at the moment.
(03-05-2016, 10:05 AM)JTaylor2005 Wrote: The thing is. I know the fans work on my car. I have just never got it hot enough to get them to come on yet. Modern cars they are on and off all the time. I haven't even had mine on even in traffic haha. I know they work as I have unplugged the sensor before and they came on. Also a stop light lit on the dash because it thought it was too hot. I'm not even close to that even with the car board in at the moment.
That's full speed fans though, the low speed may not work?
That said, I can't remember the last time fans came on in any HDi I've owned, they do run pretty cool. Even thrashing or idling in traffic. I usually check they work through PP just to make sure!
Fans are on and off all the time in modern cars to keep at an optimum temp for emissions regs iirc, back in ~2000 they weren't so bothered about that so fans are just to stop engine damage in older stuff. I think the HDi slow speed fan is 92c, which is just under 90 on the gauge usually lol.
(03-05-2016, 10:55 AM)Ruan Wrote: Bring even a stock XUD9 on full power with the coolant temperature past 100*C and I'll put money on the gasket popping.
It's an HDi though? You can drive them with no water in and they're still fine (from experience) lol. The head won't get anywhere near as hot an IDI one so it'll be able to take a higher coolant temp surely?