03 Ford Explorer New Thermostat and still geting P0128 Code...Why?

Been down this road before, replace the thermostat with an OEM Ford Thermostat and your problem will be gone!

RTFM besides the reality that it truly is an staggering protection stress term applies in this occasion.... interior the vendors instruction manual, it is going to inform you the shopper on the thank you to alter the beeping over to the previous college form of the gentle staying on for a on an identical time as until you buckle... It consists of numerous buckling and unbuckling... If no longer, have the broker turn it off while he retrieves the keyless code from the module... the module is at the back of the properly suited part panel of your vehicle, and except you're gentle approximately pulling on costly plastic factors to get the code, bypass to the broker for the code.... (it relatively is the properly suited panel to the properly suited of the passenger middle seat.... relatively the place the seatbelt rides is concerning the area of the module ( demands removing of two seatbelt bolts to do the activity impressive IMO) we gained't pull Keyless get right of entry to codes by using Vin selection.. purely ignition/Door Lock codes and then it takes a ton of evidence you own the vehicle to get that

If you haven't heard it by now, Ford has more head-gasket issues than all car brands combined. Sense the ice age, Ford decided to circle the cylinders with only four head bolts instead of five or six as other manufactures. Times haven't changed. Ford is still in the ice age, circling the cylinders with your now discontinued engine with "you guessed it" four head bolts.

You can find out where the cooling system leak is with an inexpensive *cooling system pressure test.

if its not overheating ya gotta cleare the code any auto zone can do it

A lot of thermostat's have an air bleed built in them. If not positioned correctly, coolant will continuously move through it and keep the engine cooler than "what the PCM" thinks it should be. Other than that, there might be an update for the PCM that you should inquirer about or a skewed (not reading corectly) coolant temperature sensor.