p38 sudden overheat

stevek7741 · Jun 13, 2009

hi,can anyone help me.r/rover p38 4.0 v8.
driving along 2day,everything o.k when all of a sudden temp.gauge shot into red and car started to boil up.stopped engine immiediatley and lifted bonnet. coolant header tank boiling and escaping through overflow pipe.allowed all to cool and filled coolant tank again.no leaks and all hoses seem good.checked oil and all o.k. ran car again and all seems good.any ideas?

Will Carado-Hodgkins · Jun 13, 2009

Was AC on at the time and if so were electric fans working?

stevek7741 · Jun 13, 2009

hi,no a/c on but heater was blowing cool air ok. had done about 40 miles like this

gavbriggs · Jun 13, 2009

hydrocarbon test is the first thing to do!

stevek7741 · Jun 13, 2009

sorry if i sound stupid,this is my 1st r/rover,but how do i go about a hydrocarbon test?

gavbriggs · Jun 13, 2009

take it to a mester and ask him!!! its a garage test kit that looks for products of combustion in the coolant, prolly around £20

stevek7741 · Jun 13, 2009

well we can only try...looks like a trip to the garage on monday morning,thanks for your help..

stevek7741 · Jun 20, 2009

many thanks to everyone who gave me advice on my wee problem

car is now away to have 2 new h/gaskets and the heads skimmed.

heres hoping to the end of my problem and many more troublefree miles in my trusty r/r

p38 sudden overheat

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