Hey all, my '91 240 overheats at idle consistently. It does it both when the A/C is on and off. I replaced engine thermostat and flushed the coolant system replacing it with 50/50 mix. The temp. needle on the dash does not fluctuate wildly. While I'm moving it stays just a hair below the middle, but when I idle for more than about 5-7 minutes it shoots up pretty quickly.


Anyone have some suggestions on where to start?


Thanks!

 

I would check the actual temp with an ir sensor. Also, does the fan work?

 

is the fan working? the viscous clutch might be dead.... this guy says a ton of 91's have needed replacing....
http://forums.turbobricks.com/showpo...50&postcount=7

and this guy has details on testing it.
http://forums.turbobricks.com/showpo...50&postcount=8