water gurgling???

gotta Pug 106, S Reg with 1.1 engine. When I start her up there is a
gurgling sound - can go on for quite a while when engine running. No warning
lights come on. Temp seems o.k. too.Garage renewed the water/anti-freeze.
Not sure if there is an airlock in the system or maybe in the heater system.
Should I just blast eh heater on hot for a while and see if that clears it.

 

Ask a garage to test for HC* (HydroCarbons) in the header tank. You
probably have a head gasket leaking or a cracked / warped cylinder
head.


* Testing for HC can be done using the MOT gas anayser. If a reading is
present, then it shows that combustion gases have leaked from the
combustion chamber into the cooling system.

 

would this have been done as part of the recent MOT last month?

 

Is the car loosing any water?
If it's not, it's most likely a bit air trapped. Turn the heater to full and
give it a good drive to get everything warmed up. It may be necessary to
rebleed the system though as it's french (the french designers hadn't quite
grasped the concept of a self bleeding cooling system at that point!)

 

Nope. The headgasket could be as shot as much as it wants. As long as it
doesn't **** up the emissions test then they don't care.

 

No, they use the MOT gas anayser for its intended purpose to check the
exhaust gases exiting from the usual place.

 

To me sounds like air in the water system.put heater on full and give it
a good run down the motor way.
from chris addlestone surrey

 

On most cars the heater matrix is permanently conected to the engine via two
pipes. The heater control in the car controls a flap, not the actual flow
of water to the matix. If the heater control in the car is a tap to control
wter flow that is very interesting. It's almost as bad as Rapid Fit telling
me they had to replace a thermostat to get a blocked heater matrix to work!
The problem described tends to happen on older cars that have not been
looked after too well. Most of the ones I saw suffered from owners not
using antifreeze, then after a problem they put radweld in. This caused all
the corrosion inside the engine to come away and glue together restricting
the flow of water. The gurgling will be the water trying to get past a
blocked heater matrix. You will notice towards the end of the year that the
air temperture from the heater vents will get lower and lower until it packs
in.

 

On 'most' cars. Peugeot were one of the manufacturers who used heater valves
until quite recently, more so on their smaller cars where space was a
concern (a little water valve takes up far less room than a air mixing
flap).

That's rapid fit for you.

It may be blocked, but water only gurgles when there's air in it. I'd
certainly be trying to bleed the system again before resorting to flusing
anything.

 

My Renault Megane did this for months after I changed the coolant. I
tried flushing out air bubbles by leaving the engine running with the
heater turned on, etc, but it made little difference. It would make the
noise when the engine was cold but stop doing so after it had been
running for a while. It has now stopped making the noise of its own accord.

 

that's what I need to do then - ignore it!