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Outdoor & Recreation
Campers, Vans & 4WD's
Boiling advice please
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<blockquote data-quote="OzzieAu" data-source="post: 557288" data-attributes="member: 4086"><p>I presume you have a viscous fan clutch that should be engaging before you get to boiling temps under load.</p><p>If you cant hear the noticeable extra roar of the fan as it engages, then the viscous coupling is not working. You can service these couplings with new viscous fluid from Toyota.</p><p>The temperature at which the coupling engages is controlled by airflow over a coil spring on the front of the assembly.</p><p>I had the same problem with my 3.0l Prado when towing uphill.</p><p>Cheers Adrian.</p></blockquote><p></p>
[QUOTE="OzzieAu, post: 557288, member: 4086"] I presume you have a viscous fan clutch that should be engaging before you get to boiling temps under load. If you cant hear the noticeable extra roar of the fan as it engages, then the viscous coupling is not working. You can service these couplings with new viscous fluid from Toyota. The temperature at which the coupling engages is controlled by airflow over a coil spring on the front of the assembly. I had the same problem with my 3.0l Prado when towing uphill. Cheers Adrian. [/QUOTE]
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Outdoor & Recreation
Campers, Vans & 4WD's
Boiling advice please
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