2001 Volvo S40 "po128 code engine" Questions

...DO I NEED TO REPLACE TO REMOVE THE OTHER CODE. CHECK ENGINE LIGHT IS ON BUT THE TEMP GUAGE READS NORMAL. po128 is a coolant temp sensor problem, check wiring to sensor if ok replace sensor,good

engine PO128 -- engine coolant low or thermostat not working P0440 - EVAP system malfunction, gas cap loose - Cat convertors missing from car can cause this P1189 - Engine Oil Pressure Switch Circuit

po128 code on 2002 kia rio while driving the engine light stayed on i checked it and i got po128 code. and the engine light would'nt go off. the kia is a 5 speed stick it mite be a o2 cencer

code PO128 CHEVY EQUINOX HOW TO FIX CODE PO128 Code 128 is for the engine not warming up to normal temp. Usual problem is a faulty thermostat.

po128 code on 2001 corvette while driving the check engine light came on and stayed on. Ran test and get po128 code, Coolant Thermostat(coolant temperature below thermostat temperture). Any ...

...code p0106 / po128 / po300 / po606 WHAT IS GO ON WITH THIS TRUCK ON POWER RUN BAD po106 MAP/BARO sensor range preformance po128 thermostat range is below regulated temp po300 random engine misfire ...

...came on code PO128 from auto zone thecar also shakes when driving 50 milesa hour is the same problem no the code PO128 on the cobalt mean defective thermostat. nothing to do with driving ...

code po128 came up what is po128 what is the prob Code 128 is for an engine that is not reaching normal temp, usually a thermostat problem.

car won't start/shows code po128 code po128 engine coolant temp. sensor replace sensor, top coolant, dis-connect battery for 5 minutes, re-connect and start

on and goes out temp is 195 has heat runs fine first checked it had 2 same codes po128 PO 128 is a coolant temperature beyond threshold code. It means your thermostat is stuck and needs to be replaced