× 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 January 2005

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 Chevrolet Malibu 3.1L MIL Lamp on VIN: 1G1ND52J11
P0128: Engine Coolant Temperature Below Thermostat Regulating Temperature. Well this one has me stumped. Customer came in for an intake manifold gasket with oil in the coolant, apparently they had it checked at another shop because we didnt have to diagnose the leak. After the repair was finished the car ran great, but i noticed it s...
January 10, 2005