Eswaroop

Ok on further inspection looks like the transmission fluid is leaking from the axle next to the fuel cooler and getting sprayed on to the cooler - is that a possibility ? There’s a slight bit of oil on the shaft

Duramax - correct - Ugh that’s not good is it - mixing coolant with fuel.. it’s gummy so I’m guessing both are leaking but I don’t smell any diesel so it might be just the coolant. I have to say though - the fluid I see looks too thick to be coolant - almost a transmission oil consistency

Hi I have a 2024 GMC sierra 2500 HD with 5k miles on it - was under the truck to look for something and noticed that there’s red fluid leaking from this component - not sure what it is but looks like some sort of transmission sensor or valve ?

Hi I have a 2024 GMC sierra 2500 HD with 5k miles on it - was under the truck to look for something and noticed that there’s red fluid leaking from this component - not sure what it is but looks like some sort of transmission sensor or valve ? It looks like a small heat exchanger sort of in the middle of the truck on driver side - don’t know if forum will let me post a picture