engine temp gauge stopped working and the fans run costantly

2001 PONTIAC GRAND AM
160,000 MILES • 3.4L • V6 • FWD • AUTOMATIC
Avatar
DEREKJUNK1
  • MEMBER
  • 2 POSTS
i noticed one day that the coolant temp gauge, although working wasnt giving a reading as the car came to temperature. also noticed that the fans run non stop while the car is running. i replaced the coolant temp sensor and wiring and the problem remains. i also installed a new thermostat weeks ago so i know that inst the problem. I have read that there is a separate part that is called the coolant temp sending unit that i believe is what controls the gauge. Can anyone tell me where this coolant temp sending unit is located? Autozone has the part i just dont know where its located to replace it. Thank you
Jan 26, 2015 at 11:04 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
HMAC300
  • CAR REPAIR CONTRIBUTOR
  • 48,601 POSTS
thre is only one sensor for everything it may be a bad dash as it's digital. see pics on other stuff to check.
Images (Click to enlarge)
Attached Media
Attached Media
Jan 26, 2015 at 12:15 PM
Advertisement
Avatar
DEREKJUNK1
  • MEMBER
  • 2 POSTS
The actual gauge in the dash works. Alot of Pontaics, when started, do a sweep of all gauges (they are all non-digital except the odometer) 2 times. They all sweep when i start it so i think that isnt the problem. Thank you Sir for your help!
Jan 26, 2015 at 12:24 PM