Need new Radiator but no Code showing for Warranty - Ford Powerstroke Diesel Forum
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  #1  
Old 09-16-2010, 05:28 AM
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Need new Radiator but no Code showing for Warranty

Hey fellas,

Here is my prob. My Radiator is leaking like crazy @ 73,000 miles and I called the Dealership to have it replaced under warranty. Previous to me knowing that I had a leak, I had my check engine lite come on so I retrieved the codes and cleared them with my tuner. The code that I cleared was for the Thermostat but I don't remember the #.

That's where the prob starts. The dealership said that the radiator recall falls under the 3 yr/36k warranty and that for me to have my radiator replaced now it would have to show codes for faulty thermostat.

I would think a recall wouldn't have to be done within any certain time frame but I'm no expert and the code for the thermostat hasn't ever reappeared.

Is there a little trick I can do to force it to trip that code again???

Thanks in advance
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Old 09-18-2010, 05:56 PM
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no help here???
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Old 09-18-2010, 06:15 PM
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Codes for a thermostat?? I didn't think codes popped up for a bad thermostat. The TSB outlines a specific test in order to check for faulty thermostats. It requires driving the truck, and monitoring EOT and ECT.
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Old 09-18-2010, 06:23 PM
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thanks for the response, I've seen the TSB, but I've also seen the code with my own eyes so I know the dealership wasn't bs'n me. Just wish I hadn't cleared it lol. I'm guessing there is a sensor in the thermostat housing but not really sure.
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Old 09-18-2010, 06:32 PM
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Yes there is codes for bad thermostats. It is P0128 - Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
Description: Indicates that the thermostat monitor has not achieved the required engine operating
temperature within a specified amount of time after starting the engine.
Possible Causes: Insufficient warm up time
Low engine coolant level
Leaking or stuck-open thermostat
Inoperative engine coolant temperature (ECT) sensor
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Old 09-18-2010, 07:01 PM
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Question

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Originally Posted by forddieseldoctor View Post
Yes there is codes for bad thermostats. It is P0128

That would be the one....do you know how I could force that code again without damaging my engine
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Old 09-18-2010, 09:07 PM
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Quote:
Originally Posted by forddieseldoctor View Post
Yes there is codes for bad thermostats. It is P0128 - Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
Description: Indicates that the thermostat monitor has not achieved the required engine operating
temperature within a specified amount of time after starting the engine.
Possible Causes: Insufficient warm up time
Low engine coolant level
Leaking or stuck-open thermostat
Inoperative engine coolant temperature (ECT) sensor
Oh ok. So does this code typically appear on 6.4 engines when the thermostats have failed? Or does the code not always show up like it should when there is a problem?
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Old 09-18-2010, 10:48 PM
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looks like you could drop the coolant level and make it arise but how much coolant i dont know and it would be beneficial to know how long it has to be on for the light to trigger.
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Old 09-18-2010, 11:01 PM
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i thought that would work too, but with the radiator leaking as bad as it is, that has been tested already. I've driven close to an hour with the temp running between 210 - 230 deg on more than one occasion simply because I'm friggin tired of pulling over to refill it.

I wonder if I unplug the ECT sensor if it will trip the code
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Old 09-19-2010, 07:50 AM
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The only time the code shows up is if the ect sensor temp does not rise a certain number of degrees in a certain amount of times. Such as a stuck open thermostat. If you unplug the ect sensor it will simply throw a code for ect sensor circuit fault. I don't have a good way to tell you to get the code to reappear without risking damaging the motor.
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