Engine temperature with AC on?

David Harris

Expedition Leader
I have now done a head gasket and have a new radiator. the fan cluch is new too. I've been driving the rover a week and all has been great. Ac off temps have been between 185 and 195. Ac on from 196 to 205. Idle at stop light 205. Today in a Parking garage it dot start going up to 210ish. Just want to make sure I'm ol

210 is fine when idling in those conditions, IMO . . .

David
 

TexasTJ

Climbing Nerd
Adding to this post after a 2300 mile road trip

Adding to this post after a 2300 mile road trip. I just got back for Wyoming and Colorado on a climbing trip with two friends. On the dive up to Wyoming through west Texas for a time with the ac on the temps climbed up to 220. This was traveling at 65 to 70 miles an hour. It came down with the outside temps as the day cooled off back to 190 to 205 and never got above 210 again until the driver home when in Kansas it again climbed back up to 215/220 in the hottest part of the day. The Wether Band said it was 107 outside. Everyone seam to keep there temps allot lower than this and say it stays there ie 205 at the hottest. I did the head gasket this spring and the rover has a new radiator. What should I look to next as far as my Temp climbing in this way? Oh again 99 Discovery 1 4.0

thank

Nate
 

Snagger

Explorer
I don't know about the V8s, but 300Tdi RRc and DIs have a viscous main fan and two electrical booster fans in front of the condenser on aircon models. they also have a pair of additional temperature sensors in the thermostat elbow - the first one triggers the fans if the main fan can't cope, and the second will disengage the a/c compressor clutch if the electric fans still can't keep the coolant temperature under control.
 

TexasTJ

Climbing Nerd
ok I took the grill of and it seams only one of the AC aux. fan is running well. The other turns but really slow and it stops allot. I guess ill look to replace this first.
 

cdm

Adventurer
195-206. then the fans kick in and it goes down to 202 or so.

it used to go up to 212 with the evil dexcool which is long gone now.

ambient temp is in the 90s

rear ac on
 

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