2003 Cadillac CTS P0128C

2003 CADILLAC CTS
137,000 MILES • 6 CYL • 2WD • MANUAL
Avatar
SSULLI4522
  • MEMBER
  • 1 POST
Keep getting this code over and over again dealership can't seem to find anything wrong. I clear the code and it comes back in a few days but not immediately -- My question, is it dangerous to drive the car? I was told by a repair person if the light is not blinking it's not a problem is that true??
Feb 8, 2010 at 9:54 AM
Advertisement
Avatar
FACTORYJACK
  • CERTIFIED EXPERT
  • 4,159 POSTS
In your title you listed a p0128, if that is the code, the description for that code is thermostat not regulating temperature, or too long to reach operating temp. My guess is that you have a thermostat that is stuck open, or opens prematurely. It is not dangerous, you will just use more fuel, and long term may cause oil related issues, like sludge. If you are regular about maintenance, you should not have an issue with the latter. You may notice the heater is not as hot.
Feb 8, 2010 at 9:35 PM