94 K1500 with small coolant leak

Discussion in 'Chevy C/K Truck Forum' started by rdoty, Jan 17, 2013.

  1. rdoty

    rdoty New Member

    My 94 K1500 5.7L is dripping a little coolant and I can't find out where. None of the hoses are leaking and it seems like it might be from the back of the engine but I can't see back there to tell. I did do a pressure test at 15psi for ten minutes and it didn't drop a bit. Is that long enough for a normal pressure test? Also, anybody got a clue where the leak might be coming from and how to tell. And anybody got an opinion on those "stop leak" solutions?
  2. okysmokey911

    okysmokey911 Rockstar 100 Posts

    If it is dripping off of the back of the engine it could be the back of in intake manifold that is leaking.
  3. aloxdaddy99

    aloxdaddy99 Epic Member 5+ Years 1000 Posts

    I don't have any advice to lend about the leak. But, stay away from the stop leak stuff. Can/will cause more issues down the road.
  4. jroc

    jroc New Member

    I just had this issue myself. It ended up being the hose to the overflow tank was leaking at the radiator while under pressure.

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