Had a similar problem with a '91 Grand Wagoneer. Turned out the sender was designed for a gauge needing twice the resistance as the original, even though the numbers interchanged. Car always ran really cool according to the gauge. Bill Huff At 1/8/201105:21 PM, Tom Chvapil wrote: > > >Hello everyone and Happy New Year. > >Finally got the 392 fired up, and after 20 >minutes at 2500RPM (Isky cam break in, as per >manufacturer and my machine shop), everything >was still in place and sounded great. What a relief. > >But, I realized that my temp. sender, which I >just got from a local store, doesn't seem to >correlate with my gauge. It is OK when cold, but >at 105 it is half way up the scale, and at 115 >degrees it is pegged at hot.....so, I am >assuming that the gauge is OK. (I measured the >temp at various points with an infrared >thermometer, and after warming up, even after >the 20 minute fast idle, it was still at 175.) >I tried adding a resistor, in the form of a tail >light bulb, and that brought the reading down >back onto the scale, about 3/4 way up on the gauge. > >Does anybody have any suggestions as to this >idea (adding some resistance into the circuit), >or would it make more sense to get a correct sender? > >I was assured by NAPA that the sender they sold >me is the correct one, but I am not so sure. >Does anybody have one, or a part number for one. >As always, any advice will be greatly appreciated. > >Thanks, >Tom in sunny Tucson >(Nice to be warm again, after our cold spell, >which brought the temp at our place, just >outside of town, to mid teens over new Years day >and busted a 1 1/2" galvanized pipe from our >pressure tank to the house....lots of fun dealing with that.... > > [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/