Is the a large number of 5.3 rear mains leaking? I believe mine is and am wondering if I'm the only one.

 

There is a SB regarding this, no idea on numbers but there are some for sure. Some kind of porous casting issue around the aft cover....

Take it in and get it fixed. Not a big deal at a decent dealership.

 

mine was fixed at 18xxx an again at 38xxx so i wonder if mine has a problem with the crank or something.
i have a few mods so we'll see what they say monday i hope

 

I had an oil leak at the back, but it turned out to just be the reserve oil cooler plate gasket thats located above the filter. They fixed it quick and hasnt leaked again since.

 

i hope they cover it keniff.... if not........ l92 oppertunity.. or u can put my(yours) shortblock in there.

 

i got a 5.3 sitting on my engine stand
if they dont cover it ill run it till i hav the WT finished an it'll be L92 time..you're correct lol an BABY the tranny till an 80E can be swapped in.

mines leaking between the oil pan and tranny..its the rear seal. they have an o ring somewhere above the starter thatll have oil stains coming over the starter an blah blah!

id like to buy silver-mod-o's forged 5.7 an bump the compression to 10:5:1 im broke though :'(

 

well update on mine...oil pan gasket was leaking..blah

 

Yes mine was leaking a while back, dealer fixed under warranty

 

Do they need to remove the engine to replace the main. Or do they use a tool such as a "sneaky pete" to get it out, (like I have before).

 

They pull the tranny afaik.