1997 GMC C1500 I am having antifreeze and oil leaks

1997 GMC C1500
Avatar
ANDROO725
  • MEMBER
  • 1 POST
Engine Cooling problem
1997 GMC C1500 V8 Two Wheel Drive Automatic 225k miles

I have noticed a small antifreeze leak on the driver side underneath the drain plug, i dont know if it the plug or not,,how are the stop leak tablets?
and i parked my truck and i went to move it and there was an oil spot where i parked it.. i think it i leaking from the oil pan, but i looked and the leak looks like its coming from higher up
Oct 26, 2009 at 11:28 AM
Advertisement
Avatar
JAMMER74
  • MEMBER
  • 6 POSTS
As far as stop leak tablets go,they are a temporary fix at best.You really need to have your cooling system pressure tested to find where the leak is coming from.It could be something as simple as a drain plug seal,although if you haven't had cooling system service done,it's not likely.From your vague description of the coolant leak,it sounds like it may be the radiator side tank seal,which would require either a new radiator(very cheap nowadays,or a radiator recore(almost as expensive as outright replacement).As far as the oil leak, I recommend cleaning the engine with a good engine shampoo,and then reevaluate the oil leak.Common places for oil to leak on GM truck motors are intake gasket end seals and valve cover gaskets,with the valve cover gaskets being the cheaper of the two.If you find out that the intake gasket end seals are leaking,you may as replace valve cover gaskets at the same time.
Oct 26, 2009 at 2:52 PM