Thread: I have a gurgle - should I worry?

Is this when you first start the engine on a cold morning ?

It happens too me as well but everything seems to still be working so I've been ignoring it.

The gurgling is due to low coolant. You sayt you have recently had cooling system repairs, it may need topping up.

Alan

Usually only hear it just after startup.
I understood low coolant was only an issue if a leak caused the pressurized system to allow the coolant not to fill to the top of the engine, which is higher than the top of the cooling system. No signs of low coolant but I'll check it on Saturday.
That made me think there might be a blockage in the water pipe running behind the dash for the heater? Could that mean the water only runs into the heater hose when it heats and expands?

very hard to get air out of the 300tdi

i was told park on a slight hill and if pos and leave the car over night after giving it a good drive then all the air comes to the top so you can let it out

when ever filling the coolant on my'n always has to be topped up couple of days later once all air is out, unless filled with a vacum thinggy majiggy

I had a period where each time I braked reasonably hard, a light dull hammering sound came from under the dash. Seriously, I thought a possum or rat was trying to escape out of the lower dash area. I let it go for a couple of weeks then one day I saw the temp guage creep up. To cut a long story short, I had a slight perforation in one of the upper heater hoses, therefore coolant was slowly leaking out. It turned out the dull tapping sound was water shifting around from one part of the motor to another and instantly boiling causing a hammer effect in the cooling system and heater. I was slack and didn't check the coolant res for a number of weeks otherwise I would have picked up a water loss somewhere. It was too late, the head sustained a crack which allowed engine compression to leak into the cooling system, thus over-pressurising the system and pumping water out of the res filler cap. The head had to be removed and welded. All was good after that. This was on a TDi D1

i was told park on a slight hill and if pos and leave the car over night after giving it a good drive then all the air comes to the top so you can let it out

when ever filling the coolant on my'n always has to be topped up couple of days later once all air is out, unless filled with a vacum thinggy majiggy

I'll try that on Sat.

I've had that sloshing, gurgling noise for ages from my V8, can't see any cause for it. The aircon drains seem to let plenty out when the aircon is running. There is definately no water loss.

One person I spoke to reckoned it was simply the soujnd of water expanding into the heater hose as the engine warmed and not to worry, but I still wonder... will check coolant tomorrow.