Freelander 1 strange noise after turning off engine

Hi all, go a weird one - after turning off my engine this morning I got a strange noise coming from the front end, sounded to be driver side, it was like a gurgling, bubbling or rumbling type noise and only lasted for a couple of seconds after turning everything off. its the second time I have noticed it since I got the car.

Oh, its a TD4 06 plate - any thoughts anyone. Car is running fine, but has the thermostat problem where the car isn't fully reaching temperature. Only time it was reached temperature is when I was stuck in traffic heading home last night - it then reached 90ish and stayed there.

Cooling system might need bleeding, how long have you had the car.

Col

Sounds like air in your cooling system.

Colthebrummie said:

Cooling system might need bleeding, how long have you had the car.

Col

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About a month

I have ordered a new expansion bottle cap just in case, I will look into bleeding the system tonight when I get home from work

Just to point out, me and the neighbour did try to do the fiat(?) thermostat hack - but couldnt get it in the pipes, and I topped up the coolant after that - so hopefully its just down to this. Can I just confirm though, I should be getting a return to the tank by the small pipe leading in at the top shouldnt I? there is a definite return here.

Little pipe at the top is the return.

Start the engine, and turn the heater on to hot. Take the expansion tank cap off. Open the bleed screw on the top heater matrix hose to check for air there, but do it up again.

Run the engine at fast idle, keeping the tank topped up to the line, until the radiator fans kick in (this may be a while in this weather).

The Td4 cooling system is said to be self-bleeding, but I found I had to do the above after changing the thermostat.

Geodark said:

Just to point out, me and the neighbour did try to do the fiat(?) thermostat hack - but couldnt get it in the pipes, and I topped up the coolant after that - so hopefully its just down to this. Can I just confirm though, I should be getting a return to the tank by the small pipe leading in at the top shouldnt I? there is a definite return here.

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Its a its a mystery to me how the cooling system works. My understanding is the the tanks is only an expansion tank but I'm not sure. I've been loosing sleep some coolant, I thought from a leaking water pump but I'm not so sure now and I'm suspecting my tank or cap or both. I miss the days when we had simple radiators with an overflow bottle and a simple radiator cap.

Col

Pardon my above post, my fingers are typing faster than my brain is processing.

Col

Typical, just drove home popped the bonnet and checked for the noise, and nothing! Will check again later and bleed the pipes at the weekend. It's getting parked up now anyway and switching back to my day to day car.

Just to makes sure, did it sound like Donald Duck's death quack?
If yes, this is completely normal and is the turbo bleeding air after engine shut off.
If not, ignore.
Mike

Skinny Mike said:

Just to makes sure, did it sound like Donald Duck's death quack?
If yes, this is completely normal and is the turbo bleeding air after engine shut off.
If not, ignore.
Mike

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I thought that was the EGR cycling a few times to clear itself. TDCi Defenders do this.

guineafowl21 said:

I thought that was the EGR cycling a few times to clear itself. TDCi Defenders do this.

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It'd be impressive if it was, mine does it regular and I've got no EGR
But it may be another component.
Mike

Aye, sort of. Or water glugging or plopping as it flows through a funnel. It's a really hard noise to describe! And it only seems to do it after i turn the engine off. I will still bleed the system etc at the weekend. Oil and water both look fine and I am bot losing water.

Found on YouTube

This is normal, anything else isn't.
Mike

No, it wasn't a continuous noise like that, when it first happened I though it was the car next to me rubbing it's tyres on the curb, and stopping and starting as it went. As said its such a hard noise to describe!

Skinny Mike said:

It'd be impressive if it was, mine does it regular and I've got no EGR
But it may be another component.
Mike

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Td4? Mine doesn’t do it... Now I wonder if there’s something wrong

Yeah have to say mine doesn't do that noise either.

This is a sort of blub blub blub...blub...blub blub...blub and then it stops.

Just thinking... We had a hell of a lot of rain last night, I wonder if it could be connected. Although I did drive about 5 miles before I heard the noise so if there was anything filling with water I would expect it to have emptied before then?