Engine Trick Flow Valve Cover Oil Leak


New Member
Apr 8, 2003
Lawrenceville, GA
Visit site
I installed brand new Trick Flow valve covers on my 2000 GT last month because I kept finding oil on top of the stock passenger side cover. I thought the stock cover may have had a micro fracture that was allowing oil to seep through. However, after installing the TFS valve covers, I am having the same problem. Oil is accumulating on the top of the passenger side cover, right on the letters "LOW" on the Trick Flow badge, and dripping down the side. I cannot figure out where this oil is coming from. I don't see any oil around any of the bolts. The air intake tube sits right above this spot, but I do not see any oil on it. The only thing I can think of is that its seeping out of the filler cap grommet. But I don't see any oil around the grommet. I have attached pics. The oil is circled in red. Does anyone have any ideas on where this oil is coming from?



  • image3.jpeg
    587.7 KB · Views: 4
  • image4.jpeg
    565.2 KB · Views: 5
  • IMG_0657.JPG
    805.2 KB · Views: 6
  • Sponsors(?)

StangNet created a new car social app called knowmoto! Add your Mustang or post a photo in the knowmoto app and enter for a chance at a $100 gift card from LMR. Click the LMR Logo for more about the knowmoto Mega Thread!