Land Rover Repair: Disco 1 overheating, coolant system, head gasket

Question
I saw your reply to another disco overheating issue.  I just did a coolant change along with a new thermostat.  My overheating may not happen even if running for 15-20 mins. When it starts overheating it will go all the way up, so I turn it off. Could I have air pockets in my coolant system? How can I check for them or get rid of them?

Thanks in advance!
James

Answer
Overheating after 15-20 minutes could be a number of things - clogged radiator, head gasket, etc.

I have an article on diagnosis of overheating in the last issue of the Rover News.  Go to www.roversnorth.com and download the previous issue and read the article - it goes into a lot more detail.

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John Robison