× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network

P0128 Diagnostic Trouble Code Discussion for November 2004

Thermostat System Malfunction

Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0128
Help Request Posted
2001 Pontiac Aztek 3.4L MIL Lamp on VIN: 3G7DA03E01
P0128: ECT Sensor Below Thermostat Regulating Temperature. ... soon and the temp gauge falls below cold and serv. eng. lite is on. Has codes for temp curcuit problem but the system is working fine at this time. Cleared the codes and code p1189 for oil pressure problem returned. Replace oil pressure switch and codes di...
November 05, 2004