Hello, have an 09 Sierra. When changing my oil I noticed a thick almost gumny oil substance under transmission on this round silver cap. Not sure what it was but a buddy of mine has it on his silverado too. Anyone know what I am talking about? Thanks
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Thick oil on silver cap
- Thread starter Ck owner
- Start date
GMC Customer Service
New member
Hello, have an 09 Sierra. When changing my oil I noticed a thick almost gumny oil substance under transmission on this round silver cap. Not sure what it was but a buddy of mine has it on his silverado too. Anyone know what I am talking about? Thanks
Ck owner,
I would suggest that you take your vehicle into your dealer and have them look into this for you. They would be in the best position to help you with diagnosing this issue. Feel free to keep me posted and if you have any questions please feel free to contact me.
Thank you,
Stacy GMC Customer Service