I have a 2010 XF with 28M miles. Recently after several long trips, 200 miles+ or if the vehicle idles for a few minutes a cooling fan continues to run after I shut the engine off. Is this normal since it has only happened in the last couple of months? I have owned the vehicle for 9 months and it never happened before.

 

Normal. The idea is to cool the engine compartment when everything is too hot regardless of whether you are idling or have just switched off. It is connected via a time delay relay, or possibly software.

 

does the car have 4.2 or 5.0?

 

4.2

 

If the ECM has been reflashed lately then the cooling fans will run after the car is shut off. Heat soak bulletin. just keep an eye on the temp gauge. If it stays normal then you are good.

 

Unfortunately there is no temp gauge in the XF for some strange reason.

 

Because it can't overheat. Temperature gauges are getting to be as anachronistic as oil pressure gauges. Heck, the newer cars have no dipstick.

Some manufacturers got so tired of customers complaining that their engines were running "too hot" they installed fake temperature gauges. SAAB turbos from 1995 have these. The temperature signal (which goes to the engine ECU for different reasons) was processed by a chip so as to always display a "normal" reading on the dashboard gauge unless the engine actually overheated. If the engine got close to "boiling" only then would the gauge read high. This was an elaborate hoax no different from an idiot light. Previously, the temperature gauge would have moved up and down radically as turbo engines frequently run very hot. Uninformed owners kept asking warranty claims over nothing.

Don't assume the temperature gauge in your Chevy is actually hooked up to anything real!

 

https://www.jaguarforums.com/forum/x...unction-74704/

 

My 2004 Hemi Ram temp gauge was somewhat functional. I removed the belt driven clutch fan and replaced it with a electric fan from a wrecked Mercury Sable station wagon. I also replaced the termostat with a 180 degree opening one and the gauge never read much above 1/4. Before it read 1/2. I also gained the ability to run the 4100 CFM high side of the e fan from inside the cab really helped to cool things down between 1/4 mile runs.

 

I was just saying we don't have a temp gauge to monitor. No need to rant about it. I know the car is supposed to notify you if there is an issue. Hopefully that actually works.

 

Well, I'm not sure that was a rant. I am in favour of dropping gauges from the dash that don't actually tell you useful information. I am opposed to fake gauges telling me anything.

Actual tire pressure would be nice and since we no longer need to know oil pressure or temperature, or coolant temperature why not use that freed up space or something easily avilable fom the TPMS?

 

Me to, I have a 93 RX7 and it had this big red overheat light on the arm rest console ( bad location) and if and when it came on the motor was already toast. I cant remember the time I have even seen 1 of those gen RX7's with the original motors anymore.

I like the clean look of my XFR cluster, no extra gauges. But if they had a feature where I could scroll through the cluster display to see more like the oil gauge they have it would be nice.