94 century temp guage

Old 03-16-08, 10:51 AM
Thread Starter
Join Date: Mar 2008
Posts: 4
Upvotes: 0
Received 0 Upvotes on 0 Posts
94 century temp guage

My buick temp guage goes from about 150 to 100 about every 10 miles.Its a 4 cyl.It never got above 150 until my heater core gave up. I changed the core and put in a new temp sensor,this didn,t stop the fluctuation in the temp gauge.any ideas?
Old 03-16-08, 05:46 PM
Join Date: Oct 2002
Location: Hamilton County, Ohio
Posts: 3,927
Upvotes: 0
Received 2 Upvotes on 2 Posts
Sounds like a thermostat stuck open. Have you replaced it? If so, did you burp it by opening the screw on top of the thermostat housing and adding antifreeze until it came out of the opening?

Thread Tools
Search this Thread
Ask a Question
Question Title: