Pete, That's pretty much what my car is doing. It has been this way since I had the radiator re-cored several years back with a thicker core. The only time mine will get close to the upper limit is on a very hot day stopped in traffic. Once underway, it drops fast. I'm reading 195 degrees at the casting where the sender is mounted, and with a 190 thermostat, it seems to me that everything is working as it should. Bob J From: Chrysler300@xxxxxxxxxxxxxxx [mailto:Chrysler300@xxxxxxxxxxxxxxx] On Behalf Of pffkllc@xxxxxxx Sent: Saturday, February 25, 2012 6:46 PM To: rpjasin@xxxxxxxxxxx; Chrysler300@xxxxxxxxxxxxxxx Subject: Re: [Chrysler300] temp sender issue Bob: For what it may be worth, my G has never run even in the middle of the range on the gauge. Its usual running range is just above the left hand mark. When it does get hot, in high temperature traffic jams, etc. and pegs the right hand limit, it drops instantly if I can drive it a hundred yards at maybe 35 mph. I have always figured that is simply the way it was supposed to run - never gave it a thought. Pete Fitch In a message dated 2/25/2012 7:37:15 P.M. Eastern Standard Time, rpjasin@xxxxxxxxxxx <mailto:rpjasin%40pacbell.net> writes: I am trying to determine if my temp sending unit in my 300G is faulty. My engine seems to run too cold, and I've checked the calibration on the temp gauge (swapped it out with 2 other spares and they read the same). So, I bought an infrared temp gun to help diagnose the problem. I am currently running a 190 degree thermostat, and the temp at the sender is about 195 once the car is warmed up. This puts my gauge at the very low end of the "normal brackets". It does not go into the mid range unless it is a very hot day and the car is being driven slow. I know the easiest thing to do is just to swap out the sender with a new one, but I'm curious if anyone knows what the engine temp is supposed to be at both the low and high side of the normal range. Bob J [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] [Non-text portions of this message have been removed] ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to http://autos.groups.yahoo.com/group/Chrysler300/join and select the "Leave Group" button For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylangYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: Chrysler300-digest@xxxxxxxxxxxxxxx Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/