Our Community is over 1 Million Strong. Join Us.

Stop Feeding Overpriced Junk to Your Dogs!

GET HEALTHY AFFORDABLE DOG FOOD
DEVELOPED BY THE AUTOMOTIVEFORUMS.COM FOUNDER & THE TOP AMERICAN BULLDOG BREEDER IN THE WORLD THROUGH DECADES OF EXPERIENCE. WE KNOW DOGS.
CONSUMED BY HUNDREDS OF GRAND FUTURE AMERICAN BULLDOGS FOR YEARS.
NOW AVAILABLE TO THE GENERAL PUBLIC FOR THE FIRST TIME
PROPER NUTRITION FOR ALL BREEDS & AGES
TRY GRAND FUTURE AIR DRIED BEEF DOG FOOD

Dtc p0128


Ed_Strong
01-09-2010, 08:31 PM
Yesterday while driving on the highway the MIL light came up. I didn't notice any drivability problems or issues and performance has not changed at all.

I connected my ELM to read the DTC codes and this code P0128 - Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature) came up!

What are the causes, diagnostics and fixes to rid my self of this code? Thanks in advance.
danielsatur
01-09-2010, 08:53 PM
It's taking too long for the engine to warm up, the coolant thermostat is probably sticking open. The engine has a window of time to get warm, if not a code is thrown.

1) New thermostat ; Reset clear code
Ed_Strong
01-11-2010, 02:00 AM
Thanks for the info... appreciate your help! As soon as it starts warming up again, I'll look into it.

Add your comment to this topic!