ive got a 1.9 zvh rs turbo just been rebuilt to high spec
coming back from donnington on sunday got stuck in traffic on m1 water temp kept getting hotter till valve released on header tank the dail read 250 farenheit . ive got a on off fan switch on dash so the fan was on all the time when the engine cooled down half hour off i went with know problem.
any answers cheers

 

Sounds like you need a little help!

OK.....It Could be a number of things

1st things id be doing is flushing out your water system, radiator etc.

Check out for air in the system something as simple as a small leak in your heater matrix will allow air in the system causing temps to raise rapid stylee.

Do you have an aftermarket Intercooler fitted? If so does it use the aftermarket/original fan? is this wired the correct way is it blowing rather than sucking air?

Best of luck in sorting it out M8

 

ive got a pace charge cooler fitted with up rated pump i will check to see wiring will let you know cheers b8

 

or even something as simple as a thermostat and make sure your fans kicking in at the right time good luck