tat2dup81

i was wondering if anyone has had issue with oil and coolant leaks in their trucks. but theres no leaks on ground. i have to had a quart oil after bout 3k miles after new oil change. needing info to fix

therewolf

The same thing happened to mine at 24K, under warranty, and 48K, after the warranty expired.

The most likely cause is a faulty seal at your water pump gasket surfaces. Fortunately, the Vortec V8 waterpumps arent that hard to get at, you do need a large strap wrench and a large wrench to get your fan clutch off. Most large parts stores carry all the tools and parts, including the gaskets.

At 48K, I replaced the fan clutch with a lighter unit.(The O.E.M. is a brick.) I replaced the water pump with a new one, added some Premium Hi Temp RTV sealer to the gaskets during re-assembly, and haven't had a problem since.

JohnD17

I just bought an 07 silverado i don't have any leaks but i saw a few 03-07 that were leaking from the cooler lines in the front.

tat2dup81

yeah i had my water pump replaced before and it was a small gasket that was bad. ive heard its the dexcool coolant that dries up the intake gasket that makes it leak internally

therewolf

Nothing that Fel-Pro gaskets and some good hi-temp RTV can't fix.

tat2dup81

what about the oil leakage? any ideas why the cause of having to add oil?