I just replaced my GAHH convertible top because the glass window fell out while I was at a friends house. While the car was sitting in the garage for the week waiting for the replacement I saw a couple streaks of yellowish fluid under the transmission plate on the garage floor.
I was thinking it was water pump replacement time but I have a couple weeks before finishing my degree, so I was going to replace it when I was done. After installing the new top I drove to school on the highway and when I parked and got out of my car I turn around to see coolant pouring out by the right rear tire under the car.
I had someone bring some distilled water and it lost less than I had expected. Just from the bottom of the trunk reservoir to the middle of the fill line. I thought I didn't tighten the cap when I topped it off a small amount the night before.
I filled it up and started it and saw nothing leaking. I drove home off of the highway and after about 20 minutes the coolant light came on with a slow flash for low fluid level. Temperature stayed between the 8 and 0. I got home and could hear the coolant gurgling or boiling and there was a small amount of steam coming out. The level was back to the bottom of the reservoir.
The cap was replaced with the new part probably 2 years ago but the car is on the original water pump and reservoir at 130,000 miles. I checked everything that I could get to and don't see anything cracked or leaking. Water pump and surrounding area was bone dry it and didn't make any strange noises. There was only a very small amount of coolant under the reservoir in the trunk which I assumed was just from when the water expanded over into the top of the trunk twice.
Last detail is that I did not bleed any air out of the system when I filled it up. I'm not sure if that could cause it to lose that much coolant twice. Here are some pictures but please let me know what you think is the cause.
