[Boatwaco]

Freon has no bearing on engine temperature.

Unless…
Vehicle is out of Freon in the AC system
It’s a scorching hot day so you lower the windows.
Nothing but hot air blowing is so you drive faster to flow more air.
Scorching air and the wind noise drive you bonkers so you drive faster.
Driving faster you don’t pay attention to being on boost all the time.
Being on boost could raise the engine temperature.
Maybe.

 

[Gord0]

Just a heads up Matt. Saw this one somewhere else.

 

[snakebitten]

I applied that PCM update yesterday.
But it was before it was delivered OTA.

 

[Gord0]

I applied that PCM update yesterday.
But it was before it was delivered OTA.

That OTA came through for me 4-20

 

[snakebitten]

Then I can promise I'm talking about an even more recent PCM update. No more than a few days old, at least for the Powerboost.

 

[boostkingMatt]

Stock tune in it? I'd definitely get a good battery in it. These things can get all sorts of angry with a bad one. What were the codes? Coolant immediately at high temp, or did it quickly get there? (Sensor not plugged in/busted, or air pocket)

Stock tune. I returned it to stock before I got rid of the device that I had for it.
The battery is good just needs charged. It’s at the auto parts store charging. The codes were so many, over 20 of them. I didn’t read them all. It was immediately high coolant temp. Fan turned on within seconds of starting the truck.

 

[boostkingMatt]

Just a heads up Matt. Saw this one somewhere else.
View attachment 196218

I haven’t seen that one come yet.

 

[FanaticalKilla]

Spoilers: The white truck ran for about 10 minutes today! It was idling rough, then seemed to smooth out. It threw about 20 codes. The battery was completely dead and we got it to start with a jump box. But I couldn’t start it again with a jump from my red truck so I think maybe the battery is done. I’m not sure though.
Another thing is the coolant was showing high temp and the fan was running constantly. If I tried to bring rpm’s up, the truck started to shake a little and sound kinda odd. Anyone have any thoughts?

Read this again. Truck was in overheat protection. Running on 3 cylinders I think.

 

[boostkingMatt]

Read this again. Truck was in overheat protection. Running on 3 cylinders I think.

Why though? If it was running on 3 cylinders that would make sense as to why it sounded so weird.

 

[Gord0]

I think I read somewhere a damaged or disconnected temp sensor will go to instant high temp. Could be completely wrong though.

 

[boostkingMatt]

I think I read somewhere a damaged or disconnected temp sensor will go to instant high temp. Could be completely wrong though.

Well, nothing is disconnected

 

[FanaticalKilla]

Why though? If it was running on 3 cylinders that would make sense as to why it sounded so weird.

These cooling systems are notoriously hard to bleed. With no coolant in the head it gets hot fast. I would check codes probably had an CHT Overheat code.

 

[boostkingMatt]

These cooling systems are notoriously hard to bleed. With no coolant in the head it gets hot fast. I would check codes probably had an CHT Overheat code.

I’ll check. Getting the battery back today so I might try and clear the codes and start the truck. Should I turn the heat on the truck on full blast to get the coolant up in the heating system too?

 

[FanaticalKilla]

I’ll check. Getting the battery back today so I might try and clear the codes and start the truck. Should I turn the heat on the truck on full blast to get the coolant up in the heating system too?

Yeah and try and get the front end up. Do you have any mechanic friends and a compressor? Vacuum fill the cooling system.

 

[boostkingMatt]

Yeah and try and get the front end up. Do you have any mechanic friends and a compressor? Vacuum fill the cooling system.

I can definitely lift the front end up. I already poured 3 gallons of coolant into the system. According to the specs it should hold 3.7 gallons.

 

[FanaticalKilla]

I can definitely lift the front end up. I already poured 3 gallons of coolant into the system. According to the specs it should hold 3.7 gallons.

All it takes is a bubble in a bad position and nothing will cycle.

 

[FanaticalKilla]

Well, nothing is disconnected

Temp gauge is full cold when you startup?

 

[FanaticalKilla]

I think I read somewhere a damaged or disconnected temp sensor will go to instant high temp. Could be completely wrong though.

It should code out differently if the ecm doesn’t have a complete path through the CHT sensor.

 

[boostkingMatt]

Well, the truck runs now flawlessly. That’s all I will say till you guys see the video.

 

[FanaticalKilla]

Well, the truck runs now flawlessly. That’s all I will say till you guys see the video.

Which one? We've kinda been talking about both in this thread....