Radiator Blues...

Submitted: Thursday, Dec 19, 2002 at 01:00
ThreadID: 2657 Views:2233 Replies:3 FollowUps:4
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A friend of mine recently had a bad experience with his radiator and here is the question as we are both puzzled.

For Courier Ute 4x4 2.5 Diesel, always serviced and looked after.
95000kms and 2 years old.
Recently started to overheat going uphill so he took it to his dealer who removed the radiator and sent it to a rad specialist.

He was told his radiator was almost fully blocked and needed replacement, could not be cleaned....
Not under warranty because the problem (the specialist reckons) happened because of the coolant (glycol deposits) and the coolant was supplied by him when the service was done.
We tested the radiator and it is on fact blocked right throught the middle tubes (about 80%).
We also noticed the inside of the plastic tanks was white with a calcium kind of substance.
We then removed the bottom tank and found all the white stuff had blocked the tubes on the bottom.
The radiator guy reckons this is common and he suggested to use just water with corrosion inhibitor.

Anyone had similar experiences? Does Glycol actually cause this problem?
Why did it happen so suddenly? The car has been through the Simpson this year and showed no signs of overheating...

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