I've just recently(last week)bought my '00 SSEi,......I've never owned/seen a car with a temperature gauge quite like this car'*,.......start the car up cold and the gauge climbs normally to the 200 degree mark.....BUT,no matter how hard or easy I drive the car,or under what weather/outside temp conditions,with the A/C on or off,.........the temp gauge NEVER moves(stays 'pinned' right in the middle of the gauge(200 degree mark....SLIGHTly below the 200* mark....195*)!! Is this a normal ops condition for this car (I know of another '01 Bonnie SE that does the same thing),.....it'* sort of driving me wack,and am thinking about installing a mechanical temp gauge along with the factory job.Thanks for any,and all feedback.......

yup, i'ts normal. our 2000 SSEi is the same way, same with my car.

Same with ours...no worries.

...I'm just wondering that if the car'* engine starts to over-heat....that the temp gauge will indicate so!?!.....or will it always stay smack dab in the middle.My GTP'* temp gauge, that I used to have,always drifted up to 210* or so every so often(like when the A/C was on and you were running in bumper-to-bumper traffic and the outside air temp was in the high 80'* or in the 90'*),then drop on down to normal when the airflow across the radiator got better.

I hope I understood this comment correctly but my 93 climbs at 200 at a cold start as well. My 97 did the same.

Totally different deal on the '00-up Bonnevilles.The temp gauge stays pinned exactly ON the 200* mark on the gauge......no matter WHAT the driving conditions are.[..strange..but true..]
My wife used to have a '97 Bonneville SE and that temp gauge(from a cold start)would climb up to 195-200* normally as well.......but (depending on your driving conditions,weather condition temperature,traffic conditions,etc)used to fluctuate up to a higher gauge reading,then fall back down to the 'normal' running position on the gauge when the fans kicked on or you got out of bumper-to-bumper traffic and got better air-flow through the radiator.[the same way the temp gauge on every other car I've ever owned did]

Normal, but I have seen it move. You have to be working it, however...

I think I was climbing mountains at the time. It moved a hair. I have no idea if it'* insensitive, or if there'* a REALLY good fan. Frankly, it'* very reassuring...

Me: "Hmm...temp gauge is in the same spot. All'* right with the world."
Hailey: "There'* smoke coming from under the hood."
Me: "Nope. Temp gauge is right at 200. All'* right with God and the world..."
Hailey: "The floorboards are melting..."
Me: "Would the car lie?"
Her: "No...but..."
Me: "Look! A ricer!"

Conversation ends.

:P

Sounds about right, consider your self lucky, my temp gauge works so well, it never moves past 35 degrees C, yes, my car eats coolant sensors OK.... :?