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Old 1st November 2019, 08:04   #13
SD1too
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Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model.

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Quote:
Originally Posted by Briodyjl01 View Post
... my cdt just drinks coolant. there is supposed to be a leak somewhere but I cant seem to find it.
Quote:
Originally Posted by Briodyjl01 View Post
... it is reading high 80s to high 90s but fluctuating up and down a lot ... But the heater is still freezing ... about 2500 RPM it starts to get warm then drops cold again when you slow down
Josh; the most likely reason for this is that your cooling system isn't pressurising probably due to an ineffective seal between two components or, for example, a tiny defect in the radiator. These can be very hard to find and won't necessarily result in a stream of visible coolant.

The other possibility is an air lock particularly if work has been carried out and the proper refilling/bleeding procedure not followed.

Simon
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