Skeets

A couple of days ago, i did a 20 mlie motorway journey.. the engine temp was fine, no probs... However, when i parked the car i heard a bubbling sound from under the bonnet.
On investigation, i saw that water/air was bubbling up into the water bottle as if there was air in the system or water boiling somewhere.

The next day i completely flushed out the system and took her out for another drive.... same sort of thing when i parked up, only the boiling sound seemed to be coming from in the engine somewhere and water was almost gushing out of the radiator's pressure cap.

Checked the cap a bit later and it seems fine.

So... seems to be too much pressure in the system all of a sudden? ... and that boiling/ bubbling noise?

Does this sound like a blown head gasket??? (GROAN!) :confused:

Surfer69

Check oil dipstick for water. Check tailpipes for white smoke. Refill coolant with 50/50 for another check and see if problems still exists. my .02

Dwayne 76

:iagree: A blown head gasket will produce white smoke at the tail pipe.

UKPaul

Check that both the thermostat & rad cap haven't failed.
Even if there's no water detectable in the oil there could still be a gasket problem. Take it to a decent garage & they should be able to do a simple test on the coolant to see if there are exhaust gasses in it.
Good luck
Paul

wcsinx

:iagree:

Sounds like your thermostat is on its way out. I'd replace both of these just for peace of mind. They're cheap.

Alwyn678

I will bet it is the radiator cap

Skeets

thanks for the tips everyone.

... just went to my local US Spares shop (been there ALOT recently!) and bought a new rad pressure cap.... i thought i would try the cheapest option first & hope this is the problem (please dear lord).

i've given it a little whizz down the road and it actually seems to be holding!!!! (YAY!) I'll see how it goes when i drive back to London on the motorway.

If this fixes the problem i will be SO pleased! :yesnod:

thanks again guys :cheers: