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SportTrac Discussion
General Sport Trac Discussion
P0128 code
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<blockquote data-quote="antny024" data-source="post: 1039885" data-attributes="member: 75533"><p>p0128 coolant temp below regulating value. Basically the thermostats of newer vehicles are designed to "stick" open when they fail. When that happens the engine will not get to normal operating temperature, which in turn will cause the p0128 fault. Take a REALLY GOOD look at the thermostat housing. They have a tendency to leak slightly. When that happens the retaining bolts will be constantly soaked in coolant/water. Which will cause the bolts to deteriorate and break. It's best to replace the thermostat housing as a unit. Also replace all the hoses that attach to the housing itself. If you are mechanically inclined, it's not terribly difficult. Maybe time consuming. Here's a tip. Remove the alternator and the alternator bracket, a few 13mm and 15mm bolts, take it out of the engine bay and you'll have plenty of room..</p></blockquote><p></p>
[QUOTE="antny024, post: 1039885, member: 75533"] p0128 coolant temp below regulating value. Basically the thermostats of newer vehicles are designed to "stick" open when they fail. When that happens the engine will not get to normal operating temperature, which in turn will cause the p0128 fault. Take a REALLY GOOD look at the thermostat housing. They have a tendency to leak slightly. When that happens the retaining bolts will be constantly soaked in coolant/water. Which will cause the bolts to deteriorate and break. It's best to replace the thermostat housing as a unit. Also replace all the hoses that attach to the housing itself. If you are mechanically inclined, it's not terribly difficult. Maybe time consuming. Here's a tip. Remove the alternator and the alternator bracket, a few 13mm and 15mm bolts, take it out of the engine bay and you'll have plenty of room.. [/QUOTE]
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SportTrac Discussion
General Sport Trac Discussion
P0128 code
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