Blazer Forum - Chevy Blazer Forums

Hello everyone. I recently purchased a 2005 Odyssey Touring, and joined the ody forum. So my other vehicle is a 2002 Chevy Blazer LS 2WD 4D with about 65k miles. I have learned so much from the other forum, I decided to join this one as well. I mean just b/c the ody is new does not mean I should forget about old faithful!

I purchased this vehicle from the in-laws in 2004. Many enjoyable miles, and not too much hassle with repairs, etc. I had it in for a few things a long time ago, but nothing major. They never could fully fix the gas gague though...some times it "wonders."

Anyway, I am asking for some inital help. The SES light came on recently. I noticed the temp is only reading 150ish deg. even after driving for an hour plus. I think it normally runs 205. Any ideas?