Hot running Astra Turbo Diesel

Hi, I have an N reg Astra Turbo Diesel which seems to be running a little
hot. The temperature needle hovers between 90 and 100C.

The car has covered 139K and has plenty of anti-freeze in it, and radiator
seems to be in good nick too.

I was wondering if this was a common probelm and how I might go about fixing
it.

Martin

 

Dunno where you are, but the weather here is nice and hot which could
account for it.

plenty anti-freeze, but have you checked the oil?

Mike

 

The temperature gauge on our old Cavalier 1.7TD (The Isuzu engine) when
towing our caravan through France just used to permanently be on the Red.
It towed several times to France and we never had any issues.

However be warned the temperature gauge measures the temperature of the
engine block rather than any water as we found out when the radiator got a
leak blew all the water out and then the engine died. That saw the car off
at 193,000 miles! Rather than the gauge going down to zero when the engine
had no water in it, the gauge just stayed on the Red. We wish we had
replaced the radiator now, as the car would still be going passed the
200,000k mark probably!

Rich

 

Does the fan on the radiator come on when its hot? If not change the
big black switch screwed into the bottom of the radiator. Have you
checked the mechanical thermostat, does it open in boiling water? Also
try flushing the radiator, disconnet the top hose of the radiator,
tape your garden hose into the end of the exposed hose, and run cold
water throught the system for about 15 minutes, leave the expansion
tank cap on, with the engine running at the same time, I did this and
it improved my running tempreture no end.

 

good point. something to check would be if the heater is still blowing hot.

Mike