V8 Slayer

Got home from school today.Went outside to take out garbage and noticed a few spots under my car.Moved car out of driveway and examined the spots.One little blotch was oil and about a few inchs in front of it was another wet spot.It was my coolant.I traced the coolant leaks and its dripping slowly from the corner of the overflow tank.I have no idea why.Why the hell am I dripping oil and coolant?

Token

Put a big piece of cardboard under your car, white if you can, and find out where it's coming from and what it is. There's a chance it's not your car. However, oil leaks are very common. Find out where it's coming from, and we can tell you why it's leaking.



a coolant leak is a good indicator of a bad radiator cap- when is the last time you changed your radiator cap?

thirdgen88

I think you narrowed down the coolant leak... Just do the same with the oil...

RB83L69

Probably the bottle is cracked. Very common.

V8 Slayer

Well it has to be my car because thats my particular spot in the driveway.I never changed the radiator cap.Its leaking right out of the corner of the tank..almost as if theres a tiny crack down there

There was not alot of oil.Just a few drips that spread out into a little spot.I recently did an oil change (week ago)

Token

Radiator caps are like $4 at walmart. Go pick one up and I'm almost certain your coolant leak will stop.

V8 Slayer

Im just curious.Why would a radiator cap make your coolant leak out of random spots?Do I need one FOR my car or are they universal?

Token

I'm fairly sure almost all GM ones are the same. But they usually have a little book you can look through.

The radiator cap is meant to pressurize the system, and if there is too much pressure for the cap it will move to the overflow tank. It sounds like you're not getting a good seal. Look at your cap and the top of the radiator and see how it all works together.

V8 Slayer

The oil spots arent anything to worry about? It was just a tiny spot.I Changed the oil about a week ago and maybe I just poured in a little too much.

thirdgen88

You will still have fluid in your overflow tank, so putting a new radiator cap won't change anything if there is a crack in the reservoir.. (getting a new cap is a good idea if the old one is trashed nonetheless)

The overflow isn't pressurized...

V8 Slayer

Actully I noticed a little wetness on the overflow tank cap also..

Nate86

Have a look at where the hose meets the overflow tank. Check to see if it is loose and tighten the clamp around it if it is. If the tank is cracked, well... just buy a new one for $10.

V8 Slayer

The coolant level seems good.I topped it off about a week ago.Marked the tank with a sharpie when the engine was cold and hot.Those marks seem fine.I check the hose leading to the overflow tank and its fine.The wet spots are directly under the water pump.I was outside for a half hour trying to find a single drip or wetspot on the water pump and everything seemed good.

I squezzed the radiator hoses to find any drips and nothing.

V8 Slayer

I keep randomly running outside and checking under the car..I still see wetspots but im not sure if their new ones or the ones i noticed this afternoon.I felt around the entire engine bay..Everything seems dry.

WTF?!?!?!?!!?!?!?!?

thirdgen88

Could be the water pump leaking from the weep hole... Start it and see if it leaks while running...

V8 Slayer

I started the car up and examined the water pump for like 5 minutes.Then I shut it off and looked at it again.Nothing was leaking.Where exactly is the "weep" hole so I know where to look.

Thanks.

thirdgen88

It will be a little hole located beneath the pulley on the water pump housing... This hole exists so that if the water pump bearing and seal has deteriorated, it will leak and let you know before it eventually just locks up (which would be bad)...

V8 Slayer

Check it again..Started it up..Shut it down..Looked and felt around the whole bottum of the WP.Nothing wet.

V8 Slayer

From the weep hole..Would it be leaking all the time or just once in a while?

bru333

Sometimes they will start out only leaking when hot, just a few drips at first, gets worse over time.

V8 Slayer

I found the leaks when the car was cold and sitting for half a day.