2000° on CTS

[Kilowatt39]

Alright guys, need some help.

I got a call from the wife who is driving the LLY in my sig below. She said the CTS was reading 2000°. She's in Missouri and I'm in Cali. No smoke, no power loss. Trans temp was 165° engine coolant was 185°. Ambient temp is about 80°. No issues on injector balance rates. She said she had went through a pretty big flood area because of rain.

What could possibly cause this? No weird sounds according to her. Possible probe failure?

Thanks for any help.

Bill

 

[BrandonLLY]

Bad EGT probe, maybe the water messed it up.


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[Kilowatt39]

That's what I am thinking....and hoping.

 

[BrandonLLY]

Wouldnt make too much sense the trucks EGTs are stuck at 2000 degreees.


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[Chevy1925]

Cts egt probes are known to go bad

 

[NC-smokinlmm]

Yep, bad probe if it won't come off 2000. I went thru several on my lmm...

 

[ALLY Fox]

Edge probes are prone to failure, as others have mentioned. I would get a good, dedicated EGT gauge like Autometer or Isspro and then you won't have to wonder whether your EGT reading is good or not.

 

[Kilowatt39]

Awesome. I won't be back until end of the month. So I have her running it on level 3 and keeping an eye on engine temp just to be safe. I will change it out when I get home.