dZ28adams

99' z28 M6

i have had a slight coolant leak problem 4 quite a while..it seems to drip down my block and run all the down 2 my oil pan...there is never a spot on the ground only the block and oil pan and i cant figure out were it is coming from..any other people with this problem or any ideas where it is coming from?

joecar

Coolant pump seal is worn, coolant weeps past seal and accumulates on pan bolts, leaving an orange grease, happened to me at 34K miles.

blackened

iTrader: (10)

i think i have the same problem. is it shitty to change?

waterbug1999

iTrader: (3)

If its leaking under your water pump then you need to change the water pump as it will only get worst and might take a **** on you one day in traffic. I changed mine out in an hour or two when mine took a crap.

joecar

You have to remove the air cleaner box, the radiator hoses, the serpentine belt, the fans and then the water pump.

If you don't do it, it'll get worse and you'll overheat.

You can change thermostat (I chnaged mine to 180) while you're at it.
And do TB coolant bypass mod while you're at it.
And you can flush the old coolant while you're at it.
And you should put a new radiator cap.