Coolant Bubbling

[magicgsx]

Shameful, but car sat outside for a year in the elements unused. Finally took it to a mechanic and he went over and did what needed to be done to a car that sits for so long. Fluids, brakes, tires, etc.

Drove it home and it drove nicely except when I parked it I could hear the coolant bubbling and overflowing, but the car is not overheating.

Replace the thermostat. Still the same symptoms. Could it be the radiator cap. I think when he replaced it with a cheap one.

Had the head gasket done about a year before it was put into it's year of hibernation.

Any insights would be extremely helpful. Time to sell and I need to make sure I am selling a car that doesn't have any problems (other than the usual associated with a modified DSM).

Thanks,
Mike

[Red1991TSI]

Try replacing it with an OEM one. Rad caps cause weird stuff if they're bad.

Was the coolant changed and the system flushed recently?

[Spoolin69]

Try the radiator cap, I've had that same problem. Don't use a cheepy use an OEM one.

Shane

[magicgsx]

Yes. Coolant was changed/flushed. Guess I'll order an OEM cap.

Pointers to where I can buy one online?

[Red1991TSI]

JNZTuning.com

[BISHILVR]

Put me in for radiator cap causing the problems.

[bibdrums]

Could be the head gasket maybe? If so the bubbles coming out would smell like exhaust or similar. It would smell different than regular coolant.