Coolant Temp

[bro of bro of 3 & 3hummer]

I had always wondered what the lines on my temp gauge really meant. I finally went and bought a temp gun and checked it today. My 2008 Alpha shows at the lower mark 122 degrees. At the middle mark it shows 175 degrees. This is taking the readings from the upper radiator hose. Don't know if this helps anybody or not. I just know I used to get concerned when the gauge went past half way.

 

[06 H3]

very normal for the 3...I run over 200 at about 3/4 in the summer. Thats surprisingly "normal" for the H3.

 

[ALPHA of JONESY]

I just purchased a Scan Gauge II for my H3 Alpha a few weeks ago and up until this week, with the 95+ days and havent seen anything over 200 with mild stop and go traffic.

Also, my trans seems to take a good deal of time to get hot. In fact, during the 70+ degree days I would only see about 160-170 for a max. Now that its hotter it will go up to around 190-195.

 

[alrock]

Not sure on the Alphas but I thought the I5s might have 210 degree thermostats.

 

[3Hummers]

The Alphas have always run hot in the warmer temp seasons. Ours is usually at the half mark when at operating temperature but will climb to the 2/3 mark in the summer. Mike I have a temp gun in the shop.