p0128 and ...

[RedRice589]

Getting a P0128 Coolant Thermostat (coolant temperature below thermostat regulating temperature)
P0529 fan speed sensor circuit intermittent.

Getting those codes any advice? Truck won't warm up i pulled the codes on the Black Maxx. I habe my cold coolant defuel set on 170 and it won't get above 165 ect.... help please. Do i need a new thermostat?

 

[Dzchey21]

Prob needs thermostats and you need to.look.into.the fan code to make sure it's not running all.the time

 

[RedRice589]

Ok its running like normal fan runs at idle but it doesn't come on excessively. Anybody know where the thermostat and how hard is it to replace?

 

[RedRice589]

Anybody else.... i did some research it sounds like i'll be doing the egr delete on my new truck and the thermostats at the same time... any suggestions?

 

[Big Angry Hillbilly]

Put thermostats in it and clean the connector for the fan clutch and re evaluate.

 

[RedRice589]

Thanx part numbers for thermostats?

 

[Big Angry Hillbilly]

RT-1212 was the last number I remember for the thermostats. Comes with both stats and the gasket.

 

[Big Angry Hillbilly]

8C3Z-8575-D

Was the number I put in my pickup last fall.

 

[Heavyhaul]

Anybody else.... i did some research it sounds like i'll be doing the egr delete on my new truck and the thermostats at the same time... any suggestions?

Plan on a full day if you have never done it before. Also pull the drivers side inner fender out. It will help.

Rivets are the new duct tape.

 

[Dzchey21]

If you have the egr coolers in place it's going to be a biach. Plan on w constable amount of time to do it.

If you don't think the fan is running excessively then your probably fine. Im actually not sure if there is a sensor or something that feedback to the engine to tell it how fast the fan is spinning. Maybe that code comes if the engine temp isn't what desired should be.

 

[RedRice589]

Thanks alot guys i'm jist zipping back and froth from work all week i'll do the egr delete and the tstats this coking saturday thanks alot guys!

 

[Big Angry Hillbilly]

There is a speed sensor in the fan that feeds back info to the PCM. That's what that code is. A lot of things can cause that code, but I wouldn't lose a whole lot of sleep over it unless it comes back.

Blow the connector out with compressed air and put a little dielectric grease in there and keep an eye on it.

If it still has warranty the thermostat and fan clutch should both be covered under power train.

 

[RedRice589]

No warranyy but i'll clean it out and put diealectic grease in it i figured it was a chain of events sort of thing.

Thanks, Adam

 

[gman1]

While you are that far into the motor I would do the upgraded upper and lower rad hoses to if you didnt all ready do it.

 

[RedRice589]

Its already got them had them put in at 78k thx tho ill double check

 

[RedRice589]

Got the egr delete an the thermostats inn now i have a question? The purple wire that powers my blackmax ,which fuse panel runs that?. Truck runs fine but black max has no power.

 

[RedRice589]

Oh yea and F***K the thermostats and the egr

 

[Big Angry Hillbilly]

It's not an upfitter circuit is it?

 

[RedRice589]

Idk how to tell if it is its the purple wire that H&S says to use. I checked it with a test litght and no powa.... i'll look more in depth tomorrow.

 

[RedRice589]

Ok now i'm getting 2 mores codes P0480 fan 1 control circuit P0528 fan speed sensor circuit no signal i did some research. Looks to be fan clutch. Hasn't had cooling issues i just want to