I noticed small amounts of coolant leaking randomly from the driver side....it only happens after the cars been parked and sitting for a while....not a big amount but enough to notice...I pulled the bumper and tried to locate the source but cant seem to see anything...is it just overflow or does anyone have any ideas...

Car is 99 Civic Si

 

Could be coming from anywhere. Locate the source. And I don't know why you would have to pull the bumper to locate a coolant leak.

 

Drivers side could be water pump, a line dripping down the block or the radiator drain ****. If you can rent a pressure tester from autozone or advance that would be the easiest way.

 

Thanks....bumper was off because I was repainting fog light covers and cleaning it....

Ill check it out...water pump and timing belt r new....maybe a few months

 

If it is a stock rad, check all around the top and bottom "tanks" where they are "crimped" to the rad, and NO, this is not a good fix, a temp. fix in an emergency maybe...
94

 

Driver side coolant leaks are almost always water pump. These are very dangerous as they will quickly take out the timing belt. Pull the valve cover (very easy, 4x 10mm nuts and a couple hoses) then the upper cover. Peek inside for wet or sludgy belt dust/ antifreeze, any signs require instant attention.