Defender woes

[Andymacp]

I have a 10 plate 110, only 20k on the clock. If I drive at or over 50k for more than 40 mins the coolant spurts out the overflow, the temp gauge shoots up and it goes into a limp mode. After 2 mins temp gauge goes back down again.

Been into 2 different land rover garages that can't find anything wrong.

Does anyone have any ideas or help

[htb]

Andy 2.2 or 2.4 tdci

[Stubby]

Drive at 50K ! fantastic . that's faster than a space shuttle

[spudulike]

Drive at 50K ! fantastic . that's faster than a space shuttle

 

Probably why it is overheating:001_rolleyes:

[Andymacp]

2.4

I get that speed down hill with the wind of course

[Andymacp]

Changed airflow sensor, pressure tested and block tested

[dumper]

Have you mixed antifreeze varieties and blocked radiator

[dumper]

Mixed antifreeze sorts and blocked radiator

[Matthew Storrs]

I was in a defender that was doing exactly this the other day- also a 2.4 engine. It belonged to the National park. I'm sure he said it was a split hose that was the cause- not sure what hose he meant though sorry!

[Andymacp]

I don't know why would mixing make a difference?