2001 Chevy S-10 DIAGNOSTIC CODE

2001 CHEVROLET S-10

ERHUNT3

MEMBER
1 POST

Computer problem
2001 Chevy S-10 6 cyl Four Wheel Drive Automatic

I HAVE A DIAGNOSTIC CODE (PO128) AND NOBODY CAN TELL ME WHAT THIS CODE MEANS.I HAVE BOUGHT A HAYNES MANUAL WHICH LIST A BUNCH OF CODES BUT NOT THIS PARTICULAR ONE.DOES ANYONE KNOW? I AM NOT RICH AND TRYING TO AVOID TAKING MY TRUCK TO A REPAIR SHOP.

Mar 23, 2010 at 7:17 PM

BLUELIGHTNIN6

✓ASE Certified Mechanic
16,542 POSTS

DTC P0128 : Engine Coolant Temperature Exceeds Lenght of Time To Reach Preset Temperature

Check coolant level, top off if needed and reset code. If coolant is full, suspect faulty engine coolant temperature (ECT) sensor or bad wiring to sensor.

Mar 23, 2010 at 11:20 PM

AUTOTECHCHICK

MEMBER
8 POSTS

This codes stands for "coolant temperature below thermostat regulating temperature". It is set when the desired engine operating temperature is not reached in a sufficient amount of time. The powertrain control module (PCM) monitors the engine coolant temperature (ECT) to determine when this has occurred. Common causes for this code include incorrect coolant level, a failed ECT or a stuck thermostat. For more information on this code,

May 12, 2016 at 8:16 AM

AUTOTECHCHICK

MEMBER
8 POSTS

This codes stands for "coolant temperature below thermostat regulating temperature". It is set when the desired engine operating temperature is not reached in a sufficient amount of time. The powertrain control module (PCM) monitors the engine coolant temperature (ECT) to determine when this has occurred. Common causes for this code include incorrect coolant level, a failed ECT or a stuck thermostat.

May 12, 2016 at 8:16 AM