17 Silverado black liquid leaking from exhaust.

[Ricardo Alvarez]

Anyone else seen this before? I have about 60k miles 5.3 z71. It seems to be getting worst, noticed a little bit a few months ago but now it’s crazy. No performance issues. Once exhaust cools it hardens. 

[newdude]

1 hour ago, Ricardo Alvarez said:

Anyone else seen this before? I have about 60k miles 5.3 z71. It seems to be getting worst, noticed a little bit a few months ago but now it’s crazy. No performance issues. Once exhaust cools it hardens. 

 

 

Was the truck undercoated?  

[Ricardo Alvarez]

I’m not sure. I bought it with 58k miles used certified. It’s going in next week for a leaking pinion seal now. After 500 miles from purchase transmission was rebuilt. Starting to regret going Chevy.